PowerShell PSAttack — Sigma Rule

Rule metadata and linked tags

Author: Sean Metcalf (source), Florian Roth (Nextron Systems). Source status: test; severity: high. Source dates: 2017-03-05 / 2022-12-25.

{
  "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: 72299ccfb4ca65c2d700b3c8010920607cbf6da8f6790ae309eda4e0dd9adc45

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: PowerShell PSAttack
id: b7ec41a4-042c-4f31-a5db-d0fcde9fa5c5
status: test
description: Detects the use of PSAttack PowerShell hack tool
references:
    - https://adsecurity.org/?p=2921
author: Sean Metcalf (source), Florian Roth (Nextron Systems)
date: 2017-03-05
modified: 2022-12-25
tags:
    - attack.execution
    - attack.t1059.001
logsource:
    product: windows
    category: ps_script
    definition: 'Requirements: Script Block Logging must be enabled'
detection:
    selection:
        ScriptBlockText|contains: 'PS ATTACK!!!'
    condition: selection
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://adsecurity.org/?p=2921