42 lines
1.5 KiB
YAML
42 lines
1.5 KiB
YAML
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title: Disabling Windows Event Auditing
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ruletype: Sigma
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author: '@neu5ron'
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date: 2017/11/19
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description: 'Detects scenarios where system auditing (ie: windows event log auditing)
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is disabled. This may be used in a scenario where an entity would want to bypass
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local logging to evade detection when windows event logging is enabled and reviewed.
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Also, it is recommended to turn off "Local Group Policy Object Processing" via GPO,
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which will make sure that Active Directory GPOs take precedence over local/edited
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computer policies via something such as "gpedit.msc". Please note, that disabling
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"Local Group Policy Object Processing" may cause an issue in scenarios of one off
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specific GPO modifications -- however it is recommended to perform these modifications
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in Active Directory anyways.'
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detection:
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SELECTION_1:
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EventID: 4719
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SELECTION_2:
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AuditPolicyChanges:
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- '*%%8448*'
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- '*%%8450*'
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condition: (SELECTION_1 and SELECTION_2)
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falsepositives:
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- Unknown
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id: 69aeb277-f15f-4d2d-b32a-55e883609563
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level: high
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logsource:
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definition: 'Requirements: Audit Policy : Computer Management > Audit Policy Configuration,
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Group Policy : Computer Configuration\Windows Settings\Security Settings\Advanced
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Audit Policy Configuration\Audit Policies\Policy Change\Audit Authorization Policy
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Change'
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product: windows
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service: security
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modified: 2021/11/27
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references:
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- https://bit.ly/WinLogsZero2Hero
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status: test
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tags:
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- attack.defense_evasion
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- attack.t1054
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- attack.t1562.002
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