Possible PsExec Service File Creation (via file_event)

This rule detects default PsExec service filename which suggests PsExec service installation and execution

SigmalowWindowsv1
sigma
title: Possible PsExec Service File Creation (via file_event)
id: 010bfeca-3f8c-5b95-af02-bd6a6397e1e8
status: stable
description: This rule detects default PsExec service filename which suggests PsExec service installation and execution
references:
    - https://attack.mitre.org/techniques/T1569/002/
    - https://www.jpcert.or.jp/english/pub/sr/ir_research.html
    - https://jpcertcc.github.io/ToolAnalysisResultSheet
author: Huntrule Team
date: 2026-01-31
tags:
    - attack.execution
    - attack.t1569.002
    - attack.s0029
logsource:
    category: file_event
    product: windows
detection:
    selection:
        TargetFilename|endswith: '\PSEXESVC.exe'
    condition: selection
falsepositives:
    - Unknown
level: low

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.