Possible Guest Account Enabled Through Sysadminctl (via process_creation)
This rule detects attempts to enable the guest account using the sysadminctl utility
SigmalowmacOSv1
sigma
possible-guest-account-enabled-through-sysadminctl-via-process-creation
title: Possible Guest Account Enabled Through Sysadminctl (via process_creation)
id: c3743d68-4b6c-5334-bbc3-50467c6a18e4
status: stable
description: This rule detects attempts to enable the guest account using the sysadminctl utility
references:
- https://attack.mitre.org/techniques/T1078/001/
- https://attack.mitre.org/techniques/T1078/
- https://ss64.com/osx/sysadminctl.html
author: Huntrule Team
date: 2026-07-05
tags:
- attack.privilege-escalation
- attack.persistence
- attack.initial-access
- attack.stealth
- attack.t1078
- attack.t1078.001
logsource:
category: process_creation
product: macos
detection:
selection:
Image|endswith: '/sysadminctl'
CommandLine|contains|all:
- ' -guestAccount'
- ' on'
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.