class MiniImpacketShell(cmd.Cmd): def __init__(self, smbClient, tcpShell=None): #If the tcpShell parameter is passed (used in ntlmrelayx), # all input and output is redirected to a tcp socket # instead of to stdin / stdout if tcpShell is not None: cmd.Cmd.__init__(self, stdin=tcpShell.stdin, stdout=tcpShell.stdout) sys.stdout = tcpShell.stdout sys.stdin = tcpShell.stdin sys.stderr = tcpShell.stdout self.use_rawinput = False self.shell = tcpShell else: cmd.Cmd.__init__(self) self.shell = None self.prompt = '# ' self.smb = smbClient self.username, self.password, self.domain, self.lmhash, self.nthash, self.aesKey, self.TGT, self.TGS = smbClient.getCredentials() self.tid = None self.intro = 'Type help for list of commands' self.pwd = '' self.share = None self.loggedIn = True self.last_output = None self.completion = [] def emptyline(self): pass def precmd(self, line): # switch to unicode return line def onecmd(self,s): retVal = False try: retVal = cmd.Cmd.onecmd(self,s) except Exception as e: LOG.error(e) LOG.debug('Exception info', exc_info=True) return retVal def do_exit(self,line): if self.shell is not None: self.shell.close() return True def do_shell(self, line): output = os.popen(line).read() print(output) self.last_output = output def do_help(self,line): print(""" open {host,port=445} - opens a SMB connection against the target host/port login {domain/username,passwd} - logs into the current SMB connection, no parameters for NULL connection. If no password specified, it'll be prompted kerberos_login {domain/username,passwd} - logs into the current SMB connection using Kerberos. If no password specified, it'll be prompted. Use the DNS resolvable domain name login_hash {domain/username,lmhash:nthash} - logs into the current SMB connection using the password hashes logoff - logs off shares - list available shares use {sharename} - connect to an specific share cd {path} - changes the current directory to {path} lcd {path} - changes the current local directory to {path} pwd - shows current remote directory password - changes the user password, the new password will be prompted for input ls {wildcard} - lists all the files in the current directory rm {file} - removes the selected file mkdir {dirname} - creates the directory under the current path rmdir {dirname} - removes the directory under the current path put {filename} - uploads the filename into the current path get {filename} - downloads the filename from the current path mget {mask} - downloads all files from the current directory matching the provided mask cat {filename} - reads the filename from the current path mount {target,path} - creates a mount point from {path} to {target} (admin required) umount {path} - removes the mount point at {path} without deleting the directory (admin required) list_snapshots {path} - lists the vss snapshots for the specified path info - returns NetrServerInfo main results who - returns the sessions currently connected at the target host (admin required) close - closes the current SMB Session exit - terminates the server process (and this session) """) def do_password(self, line): if self.loggedIn is False: LOG.error("Not logged in") return from getpass import getpass newPassword = getpass("New Password:"******"SMBv1 dialect used") elif dialect == SMB2_DIALECT_002: LOG.info("SMBv2.0 dialect used") elif dialect == SMB2_DIALECT_21: LOG.info("SMBv2.1 dialect used") else: LOG.info("SMBv3.0 dialect used") self.share = None self.tid = None self.pwd = '' self.loggedIn = False self.password = None self.lmhash = None self.nthash = None self.username = None def do_login(self,line): if self.smb is None: LOG.error("No connection open") return l = line.split(' ') username = '' password = '' domain = '' if len(l) > 0: username = l[0] if len(l) > 1: password = l[1] if username.find('/') > 0: domain, username = username.split('/') if password == '' and username != '': from getpass import getpass password = getpass("Password:"******"GUEST Session Granted") else: LOG.info("USER Session Granted") self.loggedIn = True def do_kerberos_login(self,line): if self.smb is None: LOG.error("No connection open") return l = line.split(' ') username = '' password = '' domain = '' if len(l) > 0: username = l[0] if len(l) > 1: password = l[1] if username.find('/') > 0: domain, username = username.split('/') if domain == '': LOG.error("Domain must be specified for Kerberos login") return if password == '' and username != '': from getpass import getpass password = getpass("Password:"******"GUEST Session Granted") else: LOG.info("USER Session Granted") self.loggedIn = True def do_login_hash(self,line): if self.smb is None: LOG.error("No connection open") return l = line.split(' ') domain = '' if len(l) > 0: username = l[0] if len(l) > 1: hashes = l[1] else: LOG.error("Hashes needed. Format is lmhash:nthash") return if username.find('/') > 0: domain, username = username.split('/') lmhash, nthash = hashes.split(':') self.smb.login(username, '', domain,lmhash=lmhash, nthash=nthash) self.username = username self.lmhash = lmhash self.nthash = nthash if self.smb.isGuestSession() > 0: LOG.info("GUEST Session Granted") else: LOG.info("USER Session Granted") self.loggedIn = True def do_logoff(self, line): if self.smb is None: LOG.error("No connection open") return self.smb.logoff() del self.smb self.share = None self.smb = None self.tid = None self.pwd = '' self.loggedIn = False self.password = None self.lmhash = None self.nthash = None self.username = None def do_info(self, line): if self.loggedIn is False: LOG.error("Not logged in") return rpctransport = transport.SMBTransport(self.smb.getRemoteHost(), filename = r'\srvsvc', smb_connection = self.smb) dce = rpctransport.get_dce_rpc() dce.connect() dce.bind(srvs.MSRPC_UUID_SRVS) resp = srvs.hNetrServerGetInfo(dce, 102) print("Version Major: %d" % resp['InfoStruct']['ServerInfo102']['sv102_version_major']) print("Version Minor: %d" % resp['InfoStruct']['ServerInfo102']['sv102_version_minor']) print("Server Name: %s" % resp['InfoStruct']['ServerInfo102']['sv102_name']) print("Server Comment: %s" % resp['InfoStruct']['ServerInfo102']['sv102_comment']) print("Server UserPath: %s" % resp['InfoStruct']['ServerInfo102']['sv102_userpath']) print("Simultaneous Users: %d" % resp['InfoStruct']['ServerInfo102']['sv102_users']) def do_who(self, line): if self.loggedIn is False: LOG.error("Not logged in") return rpctransport = transport.SMBTransport(self.smb.getRemoteHost(), filename = r'\srvsvc', smb_connection = self.smb) dce = rpctransport.get_dce_rpc() dce.connect() dce.bind(srvs.MSRPC_UUID_SRVS) resp = srvs.hNetrSessionEnum(dce, NULL, NULL, 10) for session in resp['InfoStruct']['SessionInfo']['Level10']['Buffer']: print("host: %15s, user: %5s, active: %5d, idle: %5d" % ( session['sesi10_cname'][:-1], session['sesi10_username'][:-1], session['sesi10_time'], session['sesi10_idle_time'])) def do_shares(self, line): if self.loggedIn is False: LOG.error("Not logged in") return resp = self.smb.listShares() for i in range(len(resp)): print(resp[i]['shi1_netname'][:-1]) def do_use(self,line): if self.loggedIn is False: LOG.error("Not logged in") return self.share = line self.tid = self.smb.connectTree(line) self.pwd = '\\' self.do_ls('', False) def complete_cd(self, text, line, begidx, endidx): return self.complete_get(text, line, begidx, endidx, include = 2) def do_cd(self, line): if self.tid is None: LOG.error("No share selected") return p = line.replace('/','\\') oldpwd = self.pwd if p[0] == '\\': self.pwd = line else: self.pwd = ntpath.join(self.pwd, line) self.pwd = ntpath.normpath(self.pwd) # Let's try to open the directory to see if it's valid try: fid = self.smb.openFile(self.tid, self.pwd, creationOption = FILE_DIRECTORY_FILE, desiredAccess = FILE_READ_DATA | FILE_LIST_DIRECTORY, shareMode = FILE_SHARE_READ | FILE_SHARE_WRITE ) self.smb.closeFile(self.tid,fid) except SessionError: self.pwd = oldpwd raise def do_lcd(self, s): print(s) if s == '': print(os.getcwd()) else: os.chdir(s) def do_pwd(self,line): if self.loggedIn is False: LOG.error("Not logged in") return print(self.pwd) def do_ls(self, wildcard, display = True): if self.loggedIn is False: LOG.error("Not logged in") return if self.tid is None: LOG.error("No share selected") return if wildcard == '': pwd = ntpath.join(self.pwd,'*') else: pwd = ntpath.join(self.pwd, wildcard) self.completion = [] pwd = pwd.replace('/','\\') pwd = ntpath.normpath(pwd) for f in self.smb.listPath(self.share, pwd): if display is True: print("%crw-rw-rw- %10d %s %s" % ( 'd' if f.is_directory() > 0 else '-', f.get_filesize(), time.ctime(float(f.get_mtime_epoch())), f.get_longname())) self.completion.append((f.get_longname(), f.is_directory())) def do_rm(self, filename): if self.tid is None: LOG.error("No share selected") return f = ntpath.join(self.pwd, filename) file = f.replace('/','\\') self.smb.deleteFile(self.share, file) def do_mkdir(self, path): if self.tid is None: LOG.error("No share selected") return p = ntpath.join(self.pwd, path) pathname = p.replace('/','\\') self.smb.createDirectory(self.share,pathname) def do_rmdir(self, path): if self.tid is None: LOG.error("No share selected") return p = ntpath.join(self.pwd, path) pathname = p.replace('/','\\') self.smb.deleteDirectory(self.share, pathname) def do_put(self, pathname): if self.tid is None: LOG.error("No share selected") return src_path = pathname dst_name = os.path.basename(src_path) fh = open(pathname, 'rb') f = ntpath.join(self.pwd,dst_name) finalpath = f.replace('/','\\') self.smb.putFile(self.share, finalpath, fh.read) fh.close() def complete_get(self, text, line, begidx, endidx, include = 1): # include means # 1 just files # 2 just directories p = line.replace('/','\\') if p.find('\\') < 0: items = [] if include == 1: mask = 0 else: mask = 0x010 for i in self.completion: if i[1] == mask: items.append(i[0]) if text: return [ item for item in items if item.upper().startswith(text.upper()) ] else: return items def do_mget(self, mask): if mask == '': LOG.error("A mask must be provided") return if self.tid is None: LOG.error("No share selected") return self.do_ls(mask,display=False) if len(self.completion) == 0: LOG.error("No files found matching the provided mask") return for file_tuple in self.completion: if file_tuple[1] == 0: filename = file_tuple[0] filename = filename.replace('/', '\\') fh = open(ntpath.basename(filename), 'wb') pathname = ntpath.join(self.pwd, filename) try: LOG.info("Downloading %s" % (filename)) self.smb.getFile(self.share, pathname, fh.write) except: fh.close() os.remove(filename) raise fh.close() def do_get(self, filename): if self.tid is None: LOG.error("No share selected") return filename = filename.replace('/','\\') fh = open(ntpath.basename(filename),'wb') pathname = ntpath.join(self.pwd,filename) try: self.smb.getFile(self.share, pathname, fh.write) except: fh.close() os.remove(filename) raise fh.close() def do_cat(self, filename): if self.tid is None: LOG.error("No share selected") return filename = filename.replace('/','\\') fh = BytesIO() pathname = ntpath.join(self.pwd,filename) try: self.smb.getFile(self.share, pathname, fh.write) except: raise output = fh.getvalue() encoding = "" # chardet.detect(output)["encoding"] error_msg = "[-] Output cannot be correctly decoded, are you sure the text is readable ?" if encoding: try: print(output.decode(encoding)) except: print(error_msg) finally: fh.close() else: print(error_msg) fh.close() def do_close(self, line): self.do_logoff(line) def do_list_snapshots(self, line): l = line.split(' ') if len(l) > 0: pathName= l[0].replace('/','\\') # Relative or absolute path? if pathName.startswith('\\') is not True: pathName = ntpath.join(self.pwd, pathName) snapshotList = self.smb.listSnapshots(self.tid, pathName) if not snapshotList: print("No snapshots found") return for timestamp in snapshotList: print(timestamp) def do_mount(self, line): l = line.split(' ') if len(l) > 1: target = l[0].replace('/','\\') pathName= l[1].replace('/','\\') # Relative or absolute path? if pathName.startswith('\\') is not True: pathName = ntpath.join(self.pwd, pathName) self.smb.createMountPoint(self.tid, pathName, target) def do_umount(self, mountpoint): mountpoint = mountpoint.replace('/','\\') # Relative or absolute path? if mountpoint.startswith('\\') is not True: mountpoint = ntpath.join(self.pwd, mountpoint) mountPath = ntpath.join(self.pwd, mountpoint) self.smb.removeMountPoint(self.tid, mountPath) def do_EOF(self, line): print('Bye!\n') return True