PsExec Service Installation — Sigma Rule

Rule metadata and linked tags

Author: Thomas Patzke. Source status: test; severity: medium. Source dates: 2017-06-12 / 2023-08-04.

{
  "product": "windows",
  "service": "system"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: aa4917e80e3568079a2ab65a9700bb541e44cc94f920c6906ccbc1a2e339c476

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: PsExec Service Installation
id: 42c575ea-e41e-41f1-b248-8093c3e82a28
status: test
description: Detects PsExec service installation and execution events
references:
    - https://www.jpcert.or.jp/english/pub/sr/ir_research.html
    - https://jpcertcc.github.io/ToolAnalysisResultSheet
author: Thomas Patzke
date: 2017-06-12
modified: 2023-08-04
tags:
    - attack.execution
    - attack.t1569.002
    - attack.s0029
logsource:
    product: windows
    service: system
detection:
    selection_eid:
        Provider_Name: 'Service Control Manager'
        EventID: 7045
    selection_service:
        - ServiceName: 'PSEXESVC'
        - ImagePath|endswith: '\PSEXESVC.exe'
    condition: all of selection_*
falsepositives:
    - Unknown
level: medium

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://www.jpcert.or.jp/english/pub/sr/ir_research.html
• https://jpcertcc.github.io/ToolAnalysisResultSheet