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Detection rules › Sigma

System Shutdown/Reboot - MacOs

Status
test
Severity
informational
Log source
category process_creation, product macos
Author
Igor Fits, Mikhail Larin, oscd.community
Source
github.com/SigmaHQ/sigma

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

Known false positives

  • Legitimate administrative activity

MITRE ATT&CK coverage

TacticTechniques
Impact

Telemetry coverage

PlatformRecord / event type
macOSESF event exec (NOTIFY): Fires after execve(2) or posix_spawn(2) succeeds, delivering a post-fact record of the new process.

Rule body

title: System Shutdown/Reboot - MacOs
id: 40b1fbe2-18ea-4ee7-be47-0294285811de
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, Mikhail Larin, oscd.community'
date: 2020-10-19
modified: 2022-11-26
tags:
    - attack.impact
    - attack.t1529
logsource:
    product: macos
    category: process_creation
detection:
    selection:
        Image|endswith:
            - '/shutdown'
            - '/reboot'
            - '/halt'
    condition: selection
falsepositives:
    - Legitimate administrative activity
level: informational

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    Image|endswith:
        - '/shutdown'
        - '/reboot'
        - '/halt'

Indicators

These rows show field, operator, and value matches.

FieldKindValuesSearch
Imageends_with
  • /halt
  • /reboot
  • /shutdown
field:"Image" kind:ends_with