sigmamediumHunting

Windows Firewall Disabled via PowerShell

Detects attempts to disable the Windows Firewall using PowerShell

MITRE ATT&CK

defense-evasion

Detection Query

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_*

Author

Tim Rauch, Elastic (idea)

Created

2022-09-14

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://www.elastic.co/guide/en/security/current/windows-firewall-disabled-via-powershell.html

Tags

attack.defense-evasionattack.t1562

Raw Content

title: Windows Firewall Disabled via PowerShell
id: 12f6b752-042d-483e-bf9c-915a6d06ad75
related:
    - id: 488b44e7-3781-4a71-888d-c95abfacf44d
      type: similar
status: test
description: Detects attempts to disable the Windows Firewall using PowerShell
references:
    - https://www.elastic.co/guide/en/security/current/windows-firewall-disabled-via-powershell.html
author: Tim Rauch, Elastic (idea)
date: 2022-09-14
modified: 2023-02-13
tags:
    - attack.defense-evasion
    - attack.t1562
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