Sigma Rule Library

Disable-WindowsOptionalFeature Command PowerShell

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

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Detection logic

selection_cmd

ScriptBlockText|contains|all:
  - Disable-WindowsOptionalFeature
  - -Online
  - -FeatureName

selection_feature

ScriptBlockText|contains:
  - Windows-Defender-Gui
  - Windows-Defender-Features
  - Windows-Defender
  - Windows-Defender-ApplicationGuard

Condition

all of selection*

Raw YAML

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

False positives

  • Unknown

References

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