Suspicious Google Workspace Granted Domain API Access (via google_workspace.admin)

title: Suspicious Google Workspace Granted Domain API Access (via google_workspace.admin)
id: f41bc37b-10e3-5a21-96f0-97e9a5405553
status: stable
description: This rule detects when an API access service account is granted domain authority.
references:
    - https://attack.mitre.org/techniques/T1098/
    - https://cloud.google.com/logging/docs/audit/gsuite-audit-logging#3
    - https://developers.google.com/admin-sdk/reports/v1/appendix/activity/admin-domain-settings#AUTHORIZE_API_CLIENT_ACCESS
author: Huntrule Team
date: 2026-03-14
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.t1098
logsource:
    product: gcp
    service: google_workspace.admin
detection:
    selection:
        eventService: admin.googleapis.com
        eventName: AUTHORIZE_API_CLIENT_ACCESS
    condition: selection
falsepositives:
    - Unknown
level: medium