SigmaHQ/rules/windows/process_creation/win_sus_auditpol_usage.yml
2021-07-01 12:18:30 +05:45

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YAML

title: Suspicious Auditpol Usage
id: 0a13e132-651d-11eb-ae93-0242ac130002
description: Threat actors can use auditpol binary to change audit policy configuration to impair detection capability. This can be carried out by selectively disabling/removing certain audit policies as well as restoring a custom policy owned by the threat actor.
author: Janantha Marasinghe (https://github.com/blueteam0ps)
references:
- https://www.microsoft.com/security/blog/2021/01/20/deep-dive-into-the-solorigate-second-stage-activation-from-sunburst-to-teardrop-and-raindrop/
date: 2021/02/02
modified: 2021/02/02
tags:
- attack.defense_evasion
- attack.t1562.002
level: high
logsource:
category: process_creation
product: windows
detection:
selection_auditpol_binary:
Image|endswith: '\auditpol.exe'
selection_auditpol_command:
CommandLine|contains:
- 'disable' # disables a specific audit policy
- 'clear' # delete or clears audit policy
- 'remove' # removes an audit policy
- 'restore' # restores an audit policy
condition: selection_auditpol_binary and selection_auditpol_command
falsepositives:
- Admin activity