PowerShell Scripts Installed as Services - Security — Sigma Rule

Rule metadata and linked tags

Author: oscd.community, Natalia Shornikova. Source status: test; severity: high. Source dates: 2020-10-06 / 2022-11-29.

{
  "product": "windows",
  "service": "security",
  "definition": "The 'System Security Extension' audit subcategory need to be enabled to log the EID 4697"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 180b4f31513c49fbb2a9d7f54d681bcebd82da4dbe4a26e55b1f14a3aa37f447

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 Scripts Installed as Services - Security
id: 2a926e6a-4b81-4011-8a96-e36cc8c04302
related:
    - id: a2e5019d-a658-4c6a-92bf-7197b54e2cae
      type: derived
status: test
description: Detects powershell script installed as a Service
references:
    - https://speakerdeck.com/heirhabarov/hunting-for-powershell-abuse
author: oscd.community, Natalia Shornikova
date: 2020-10-06
modified: 2022-11-29
tags:
    - attack.execution
    - attack.t1569.002
logsource:
    product: windows
    service: security
    definition: The 'System Security Extension' audit subcategory need to be enabled to log the EID 4697
detection:
    selection:
        EventID: 4697
        ServiceFileName|contains:
            - 'powershell'
            - 'pwsh'
    condition: selection
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://speakerdeck.com/heirhabarov/hunting-for-powershell-abuse