PsExec Service Execution

Description

Detects launch of the PSEXESVC service, which means that this system was the target of a psexec remote execution

Query · sigma

selection:
- Image: C:\Windows\PSEXESVC.exe
- OriginalFileName: psexesvc.exe
condition: selection

Known false positives

  • Legitimate administrative tasks
Raw source PsExec Service Execution · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: PsExec Service Execution
id: fdfcbd78-48f1-4a4b-90ac-d82241e368c5
related:
    - id: fa91cc36-24c9-41ce-b3c8-3bbc3f2f67ba
      type: obsolete
status: test
description: Detects launch of the PSEXESVC service, which means that this system was the target of a psexec remote execution
references:
    - https://learn.microsoft.com/en-us/sysinternals/downloads/psexec
    - https://www.youtube.com/watch?v=ro2QuZTIMBM
author: Thomas Patzke, Romaissa Adjailia, Florian Roth (Nextron Systems)
date: 2017-06-12
modified: 2023-02-28
tags:
    - attack.execution
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image: 'C:\Windows\PSEXESVC.exe'
        - OriginalFileName: 'psexesvc.exe'
    condition: selection
falsepositives:
    - Legitimate administrative tasks
level: medium

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