Possible New Github Organization Member Added (via audit)

title: Possible New Github Organization Member Added (via audit)
id: c551f035-b330-5563-b8b2-b3710b1b9437
status: stable
description: This rule detects when a new member is added or invited to a github organization.
author: Huntrule Team
date: 2026-05-08
references:
    - https://attack.mitre.org/techniques/T1136/003/
    - https://docs.github.com/en/organizations/keeping-your-organization-secure/managing-security-settings-for-your-organization/reviewing-the-audit-log-for-your-organization#dependabot_alerts-category-actions
tags:
    - attack.persistence
    - attack.t1136.003
logsource:
    product: github
    service: audit
    definition: 'Requirements: The audit log streaming feature must be enabled to be able to receive such logs. You can enable following the documentation here: https://docs.github.com/en/enterprise-cloud@latest/admin/monitoring-activity-in-your-enterprise/reviewing-audit-logs-for-your-enterprise/streaming-the-audit-log-for-your-enterprise#setting-up-audit-log-streaming'
detection:
    selection:
        action:
            - 'org.add_member'
            - 'org.invite_member'
    condition: selection
falsepositives:
    - Unknown
level: informational