Wdigest CredGuard Registry Modification

calendar Oct 23, 2025 · attack.persistence attack.defense-evasion attack.t1112  ·
Share on: linkedin copy

Detects potential malicious modification of the property value of IsCredGuardEnabled from HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\WDigest to disable Cred Guard on a system. This is usually used with UseLogonCredential to manipulate the caching credentials.

Sigma rule (View on GitHub)

 1title: Wdigest CredGuard Registry Modification
 2id: 1a2d6c47-75b0-45bd-b133-2c0be75349fd
 3status: test
 4description: |
 5  Detects potential malicious modification of the property value of IsCredGuardEnabled from
 6  HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\WDigest to disable Cred Guard on a system.
 7  This is usually used with UseLogonCredential to manipulate the caching credentials.  
 8references:
 9    - https://teamhydra.blog/2020/08/25/bypassing-credential-guard/
10author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
11date: 2019-08-25
12modified: 2021-11-27
13tags:
14    - attack.persistence
15    - attack.defense-evasion
16    - attack.t1112
17logsource:
18    category: registry_event
19    product: windows
20detection:
21    selection:
22        TargetObject|endswith: '\IsCredGuardEnabled'
23    condition: selection
24falsepositives:
25    - Unknown
26level: high

References

  • Bypassing Credential Guard

    In ye old days, a [hacker, red teamer, penetration tester, motivated child] would compromise a host, use an exploit to elevate or laterally move, and then Mimikatz their way to glory (ok, maybe not…


    Read More

Related rules

to-top