Sigma rule: Windows Firewall Profile Disabled

Rule

Title

Windows Firewall Profile Disabled

Status

test

Level

medium

Author

Austin Songer @austinsonger

Date

2021-10-12

Modified

2022-12-30

File

rules/windows/powershell/powershell_script/posh_ps_windows_firewall_profile_disabled.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects when a user disables the Windows Firewall via a Profile to help evade defense.

Log source

product

windows

category

ps_script

definition

Requirements: Script Block Logging must be enabled

Detection

selection_args:
    ScriptBlockText|contains|all:
        - 'Set-NetFirewallProfile '
        - ' -Enabled '
        - ' False'
selection_opt:
    ScriptBlockText|contains:
        - ' -All '
        - 'Public'
        - 'Domain'
        - 'Private'
condition: all of selection*

False positives (as the rule lists them)

• Unknown

Tags

• attack.defense-impairment
• attack.t1686.003

MITRE ATT&CK ids this rule names

• T1686.003

Related rules

• 12f6b752-042d-483e-bf9c-915a6d06ad75 (similar)

References

• https://learn.microsoft.com/en-us/powershell/module/netsecurity/set-netfirewallprofile?view=windowsserver2022-ps
• https://www.tutorialspoint.com/how-to-get-windows-firewall-profile-settings-using-powershell
• https://web.archive.org/web/20230929023836/http://powershellhelp.space/commands/set-netfirewallrule-psv5.php
• http://woshub.com/manage-windows-firewall-powershell/
• https://www.elastic.co/guide/en/security/current/windows-firewall-disabled-via-powershell.html

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/powershell/powershell_script/posh_ps_windows_firewall_profile_disabled.yml