Disable-WindowsOptionalFeature Command PowerShell — Sigma Rule

Rule metadata and linked tags

Author: frack113. Source status: test; severity: high. Source dates: 2022-09-10 / not supplied.

{
  "product": "windows",
  "category": "ps_script",
  "definition": "Requirements: Script Block Logging must be enabled"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: bc254c9c01bd9f54d896ac5055bb96e52fbb0181e67dac9d8fc9e5c608ffbfca

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Disable-WindowsOptionalFeature Command PowerShell
id: 99c4658d-2c5e-4d87-828d-7c066ca537c3
status: test
description: |
    Detect built in PowerShell cmdlet Disable-WindowsOptionalFeature, Deployment Image Servicing and Management tool.
    Similar to DISM.exe, this cmdlet is used to enumerate, install, uninstall, configure, and update features and packages in Windows images
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/5b67c9b141fa3918017f8fa44f2f88f0b1ecb9e1/atomics/T1562.001/T1562.001.md
    - https://learn.microsoft.com/en-us/powershell/module/dism/disable-windowsoptionalfeature?view=windowsserver2022-ps
author: frack113
date: 2022-09-10
tags:
    - attack.defense-impairment
    - attack.t1685
logsource:
    product: windows
    category: ps_script
    definition: 'Requirements: Script Block Logging must be enabled'
detection:
    selection_cmd:
        ScriptBlockText|contains|all:
            - 'Disable-WindowsOptionalFeature'
            - '-Online'
            - '-FeatureName'
    selection_feature:
        # Add any important windows features
        ScriptBlockText|contains:
            - 'Windows-Defender-Gui'
            - 'Windows-Defender-Features'
            - 'Windows-Defender'
            - 'Windows-Defender-ApplicationGuard'
            # - 'Containers-DisposableClientVM' # Windows Sandbox
    condition: all of selection*
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://github.com/redcanaryco/atomic-red-team/blob/5b67c9b141fa3918017f8fa44f2f88f0b1ecb9e1/atomics/T1562.001/T1562.001.md
• https://learn.microsoft.com/en-us/powershell/module/dism/disable-windowsoptionalfeature?view=windowsserver2022-ps