Possible System Shutdown/Reboot - Linux (via auditd)

This rule detects threat actors may shutdown/reboot systems to interrupt access to, or aid in the destruction of, those systems.

SigmainformationalLinuxv1
sigma
title: Possible System Shutdown/Reboot - Linux (via auditd)
id: e59c2c5f-4611-51ec-a75d-466fb356b585
status: stable
description: This rule detects threat actors may shutdown/reboot systems to interrupt access to, or aid in the destruction of, those systems.
references:
    - https://attack.mitre.org/techniques/T1529/
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1529/T1529.md
author: 'Huntrule Team'
date: 2026-01-01
tags:
    - attack.impact
    - attack.t1529
logsource:
    product: linux
    service: auditd
detection:
    execve:
        type: 'EXECVE'
    shutdowncmd:
        - 'shutdown'
        - 'reboot'
        - 'halt'
        - 'poweroff'
    init:
        - 'init'
        - 'telinit'
    initselection:
        - 0
        - 6
    condition: execve and (shutdowncmd or (init and initselection))
falsepositives:
    - Unknown
level: informational

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.