title: PsExec Tool Execution
id: f3f3a972-f982-40ad-b63c-bca6afdfad7c
related:
    - id: 42c575ea-e41e-41f1-b248-8093c3e82a28
      type: derived
status: experimental
description: Detects PsExec service installation and execution events (service and Sysmon)
author: Thomas Patzke
date: 2017/06/12
modified: 2021/09/21
references:
    - https://www.jpcert.or.jp/english/pub/sr/ir_research.html
    - https://jpcertcc.github.io/ToolAnalysisResultSheet
tags:
    - attack.execution
    - attack.t1569.002
    - attack.s0029
fields:
    - EventID
    - CommandLine
    - ParentCommandLine
    - ServiceName
    - ServiceFileName
    - TargetFilename
    - PipeName
logsource:
     category: pipe_created
     product: windows
     definition: 'Note that you have to configure logging for Named Pipe Events in Sysmon config (Event ID 17 and Event ID 18). The basic configuration is in popular sysmon configuration (https://github.com/SwiftOnSecurity/sysmon-config), but it is worth verifying. You can also use other repo, e.g. https://github.com/Neo23x0/sysmon-config, https://github.com/olafhartong/sysmon-modular. How to test detection? You can check powershell script from this site https://svch0st.medium.com/guide-to-named-pipes-and-hunting-for-cobalt-strike-pipes-dc46b2c5f575'
detection:
    sysmon_pipecreated:
        PipeName: '\PSEXESVC'
    condition: sysmon_pipecreated
falsepositives:
    - Unknown
level: low
