Windows Process Command-Line Flags Indicating Auditpol Policy Tampering
Detects auditpol runs with flags that disable key audit categories, indicating potential audit policy tampering for defense impairment.
- Product
- windows
- Category
- process_creation
- Author
- Nasreddine Bencherchali (Nextron Systems) (SigmaHQ), DRL 1.1
- Published
- 2021-12-18
- Updated
- 2026-07-31
ATT&CK techniques
Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
What it detects
This rule flags process executions where the command line includes specific auditpol-style flags that can be used to target audit policy configuration. An attacker could use an older auditpol utility from a resource kit to disable or remove selected audit policies or restore a custom policy, impairing detection fidelity. The detection relies on Windows process creation telemetry and matching the presence of the defined /<area>:none command-line parameters.
Reporting behind it
Changelog
v2- v2Candidate ingested via manual entry.2026-07-31
- v1No changelog recorded for this version.2026-07-30
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.
title: Windows Process Command-Line Flags Indicating Auditpol Policy Tampering
id: 27b7e1a9-056e-4b7d-a65c-54810d8fe569
related:
- id: 0a13e132-651d-11eb-ae93-0242ac130002
type: similar
- id: c6c56ada-612b-42d1-9a29-adad3c5c2c1e
type: derived
status: test
description: This rule flags process executions where the command line includes specific auditpol-style flags that can be used to target audit policy configuration. An attacker could use an older auditpol utility from a resource kit to disable or remove selected audit policies or restore a custom policy, impairing detection fidelity. The detection relies on Windows process creation telemetry and matching the presence of the defined /<area>:none command-line parameters.
references:
- https://github.com/3CORESec/MAL-CL/tree/master/Descriptors/Windows%202000%20Resource%20Kit%20Tools/AuditPol
- https://github.com/SigmaHQ/sigma/blob/master/rules/windows/process_creation/proc_creation_win_auditpol_nt_resource_kit_usage.yml
author: Nasreddine Bencherchali (Nextron Systems), Huntrule Team
date: 2021-12-18
modified: 2023-02-21
tags:
- attack.defense-impairment
- attack.t1685.001
logsource:
category: process_creation
product: windows
detection:
selection:
CommandLine|contains:
- /logon:none
- /system:none
- /sam:none
- /privilege:none
- /object:none
- /process:none
- /policy:none
condition: selection
falsepositives:
- The old auditpol utility isn't available by default on recent versions of Windows as it was replaced by a newer version. The FP rate should be very low except for tools that use a similar flag structure
level: high
license: DRL-1.1