sigmahighHunting

Wdigest CredGuard Registry Modification

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.

MITRE ATT&CK

T1112

persistencedefense-evasion

Detection Query

selection:
  TargetObject|endswith: \IsCredGuardEnabled
condition: selection

Author

Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)

Created

2019-08-25

Data Sources

windowsRegistry Events

Platforms

windows

References

https://teamhydra.blog/2020/08/25/bypassing-credential-guard/

Tags

attack.persistenceattack.defense-evasionattack.t1112

Raw Content

title: Wdigest CredGuard Registry Modification
id: 1a2d6c47-75b0-45bd-b133-2c0be75349fd
status: test
description: |
  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.
references:
    - https://teamhydra.blog/2020/08/25/bypassing-credential-guard/
author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
date: 2019-08-25
modified: 2021-11-27
tags:
    - attack.persistence
    - attack.defense-evasion
    - attack.t1112
logsource:
    category: registry_event
    product: windows
detection:
    selection:
        TargetObject|endswith: '\IsCredGuardEnabled'
    condition: selection
falsepositives:
    - Unknown
level: high