System Shutdown/Reboot - Linux — Sigma Rule

Rule metadata and linked tags

Author: Igor Fits, oscd.community. Source status: test; severity: informational. Source dates: 2020-10-15 / 2022-11-26.

{
  "product": "linux",
  "service": "auditd"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: b18af7835c492443e2676fd414e28590393d152083e0dade8235d6f77197cdef

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: System Shutdown/Reboot - Linux
id: 4cb57c2f-1f29-41f8-893d-8bed8e1c1d2f
status: test
description: Adversaries may shutdown/reboot systems to interrupt access to, or aid in the destruction of, those systems.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1529/T1529.md
author: 'Igor Fits, oscd.community'
date: 2020-10-15
modified: 2022-11-26
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:
    - Legitimate administrative activity
level: informational

Original YAML and metadata in JSON

False positives

• Legitimate administrative activity

Source references

• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1529/T1529.md