SigmaHQ/rules/windows/registry_event/sysmon_disable_wdigest_credential_guard.yml
2020-10-13 03:33:55 -04:00

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YAML

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