34 lines
1.1 KiB
YAML
34 lines
1.1 KiB
YAML
title: Wdigest CredGuard Registry Modification
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author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
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date: 2019/08/25
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description: Detects potential malicious modification of the property value of IsCredGuardEnabled
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from HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\WDigest to disable
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Cred Guard on a system. This is usually used with UseLogonCredential to manipulate
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the caching credentials.
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detection:
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SELECTION_1:
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EventID: 12
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SELECTION_2:
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EventID: 13
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SELECTION_3:
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EventID: 14
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SELECTION_4:
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TargetObject: '*\IsCredGuardEnabled'
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condition: ((SELECTION_1 or SELECTION_2 or SELECTION_3) and SELECTION_4)
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falsepositives:
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- Unknown
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id: 1a2d6c47-75b0-45bd-b133-2c0be75349fd
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level: critical
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logsource:
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category: registry_event
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product: windows
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references:
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- https://teamhydra.blog/2020/08/25/bypassing-credential-guard/
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status: experimental
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tags:
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- attack.defense_evasion
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- attack.t1112
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yml_filename: sysmon_disable_wdigest_credential_guard.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/registry_event
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