Troubleshooting Pack Cmdlet Execution — Sigma Rule

Rule metadata and linked tags

Author: Nasreddine Bencherchali (Nextron Systems). Source status: test; severity: medium. Source dates: 2022-06-21 / 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: 44d4b575d800778390817bf767eb817ad86bde7aa2c3eecf051d1a1aa6cac602

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: Troubleshooting Pack Cmdlet Execution
id: 03409c93-a7c7-49ba-9a4c-a00badf2a153
status: test
description: Detects execution of "TroubleshootingPack" cmdlets to leverage CVE-2022-30190 or action similar to "msdt" lolbin (as described in LOLBAS)
references:
    - https://twitter.com/nas_bench/status/1537919885031772161
    - https://lolbas-project.github.io/lolbas/Binaries/Msdt/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-06-21
tags:
    - attack.stealth
    - attack.t1202
logsource:
    product: windows
    category: ps_script
    definition: 'Requirements: Script Block Logging must be enabled'
detection:
    selection:
        ScriptBlockText|contains|all:
            - 'Invoke-TroubleshootingPack'
            - 'C:\Windows\Diagnostics\System\PCW'
            - '-AnswerFile'
            - '-Unattended'
    condition: selection
falsepositives:
    - Legitimate usage of "TroubleshootingPack" cmdlet for troubleshooting purposes
level: medium

Original YAML and metadata in JSON

False positives

• Legitimate usage of "TroubleshootingPack" cmdlet for troubleshooting purposes

Source references

• https://twitter.com/nas_bench/status/1537919885031772161
• https://lolbas-project.github.io/lolbas/Binaries/Msdt/