Suspicious Windows Firewall Disabled through PowerShell (via process_creation)
This rule detects attempts to disable the Windows Firewall using PowerShell
SigmamediumWindowsv1
sigma
suspicious-windows-firewall-disabled-through-powershell-via-process-creation
title: Suspicious Windows Firewall Disabled through PowerShell (via process_creation)
id: e7a6e4a5-f39b-54f4-a0f4-f267ea457564
status: stable
description: This rule detects attempts to disable the Windows Firewall using PowerShell
references:
- https://attack.mitre.org/techniques/T1685/
- https://www.elastic.co/guide/en/security/current/windows-firewall-disabled-via-powershell.html
author: Huntrule Team
date: 2026-07-26
tags:
- attack.defense-impairment
- attack.t1685
logsource:
category: process_creation
product: windows
detection:
selection_name:
- Image|endswith:
- '\powershell.exe'
- '\pwsh.exe'
- '\powershell_ise.exe'
- OriginalFileName:
- 'PowerShell.EXE'
- 'pwsh.dll'
selection_args:
CommandLine|contains|all:
- 'Set-NetFirewallProfile '
- ' -Enabled '
- ' False'
selection_opt:
CommandLine|contains:
- ' -All '
- 'Public'
- 'Domain'
- 'Private'
condition: all of selection_*
falsepositives:
- Unknown
level: medium
Known false positives
- Unknown
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.