Invoke-WdigestDowngrade - Empire Module


This page contains detailed information about how to use the powershell/management/wdigest_downgrade Empire module. For list of all Empire modules, visit the Empire Module Library.

Module Overview

Name: Invoke-WdigestDowngrade
Module: powershell/management/wdigest_downgrade
Source code: empire/server/modules/powershell/management/wdigest_downgrade.yaml
MITRE ATT&CK: T1214
Language: PowerShell
Needs admin: Yes
OPSEC safe: No
Background: No

The wdigest_downgrade module sets wdigest on the machine to explicitly use logon credentials. Counters kb2871997.

This module runs in a foreground and is OPSEC unsafe as it writes on the disk and therefore could be detected by AV/EDR running on the target system.

Note that the wdigest_downgrade module does not need administrative privileges to work properly which means that a normal user can run this module.

Required Module Options

This is a list of options that are required by the wdigest_downgrade module:

Agent
Agent to run module on.

Additional Module Options

This is a list of additional options that are supported by the wdigest_downgrade module:

Cleanup
Switch. Disable the registry key.

NoLock
Switch. Don't lock the workstation after registry change.

Wdigest_downgrade Example Usage

Here's an example of how to use the wdigest_downgrade module in the Empire client console:

[+] New agent Y4LHEV83 checked in
[*] Sending agent (stage 2) to Y4LHEV83 at 192.168.204.135
(empire usestager/windows/ducky) > usemodule powershell/management/wdigest_downgrade

 Author       @harmj0y                                                          
 Background   False                                                             
 Comments     https://www.trustedsec.com/april-2015/dumping-wdigest-creds-with- 
              meterpreter-mimikatzkiwi-in-windows-8-1/                          
 Description  Sets wdigest on the machine to explicitly use logon credentials.  
              Counters kb2871997.                                               
 Language     powershell                                                        
 Name         powershell/management/wdigest_downgrade                           
 NeedsAdmin   True                                                              
 OpsecSafe    False                                                             
 Techniques   http://attack.mitre.org/techniques/T1214                          


,Record Options---,----------,------------------------------------,
| Name    | Value | Required | Description                        |
|---------|-------|----------|------------------------------------|
| Agent   |       | True     | Agent to run module on.            |
|---------|-------|----------|------------------------------------|
| Cleanup |       | False    | Switch. Disable the registry key.  |
|---------|-------|----------|------------------------------------|
| NoLock  |       | False    | Switch. Don't lock the workstation |
|         |       |          | after registry change.             |
'---------'-------'----------'------------------------------------'

(Empire: usemodule/powershell/management/wdigest_downgrade) > set Agent Y4LHEV83
[*] Set Agent to Y4LHEV83
(Empire: usemodule/powershell/management/wdigest_downgrade) > execute
[*] Tasked Y4LHEV83 to run Task 1
...

Now wait for the results to come.

Author

References

See Also

Check also the following modules related to this module:

Version

This page has been created based on Empire version 4.1.3 (BC Security Fork).
Visit Empire Module Library for more modules.