Sigma rule: System Shutdown/Reboot - Linux

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-f43d67a9f8a5, updated 2022-11-26T00:00:00.000Z.

Rule

Title
System Shutdown/Reboot - Linux
Status
test
Level
informational
Author
Igor Fits, oscd.community
Date
2020-10-15
Modified
2022-11-26
File
rules/linux/auditd/execve/lnx_auditd_system_shutdown_reboot.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Adversaries may shutdown/reboot systems to interrupt access to, or aid in the destruction of, those systems.

Log source

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))

False positives (as the rule lists them)

  • Legitimate administrative activity

Tags

  • attack.impact
  • attack.t1529

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/linux/auditd/execve/lnx_auditd_system_shutdown_reboot.yml

Sources and licences

  • SigmaHQ

    "System Shutdown/Reboot - Linux" by Igor Fits, oscd.community (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/linux/auditd/execve/lnx_auditd_system_shutdown_reboot.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: System Shutdown/Reboot - Linux",
entity page, dataset version ref-f43d67a9f8a5, updated 2022-11-26T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/4cb57c2f-1f29-41f8-893d-8bed8e1c1d2f (accessed 2026-11-03).
Underlying source: SigmaHQ rule 4cb57c2f-1f29-41f8-893d-8bed8e1c1d2f, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.