IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Google Workspace User Organizational Unit Changed
editGoogle Workspace User Organizational Unit Changed
editUsers in Google Workspace are typically assigned a specific organizational unit that grants them permissions to certain services and roles that are inherited from this organizational unit. Adversaries may compromise a valid account and change which organizational account the user belongs to which then could allow them to inherit permissions to applications and resources inaccessible prior to.
Rule type: query
Rule indices:
- filebeat-*
- logs-google_workspace*
Severity: low
Risk score: 21
Runs every: 10m
Searches indices from: now-130m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Cloud
- Google Workspace
- Continuous Monitoring
- SecOps
- Configuration Audit
- Persistence
Version: 2
Rule authors:
- Elastic
Rule license: Elastic License v2
Investigation guide
edit### Important Information Regarding Google Workspace Event Lag Times - As per Google's documentation, Google Workspace administrators may observe lag times ranging from minutes up to 3 days between the time of an event's occurrence and the event being visible in the Google Workspace admin/audit logs. - This rule is configured to run every 10 minutes with a lookback time of 130 minutes. - To reduce the risk of false negatives, consider reducing the interval that the Google Workspace (formerly G Suite) Filebeat module polls Google's reporting API for new events. - By default, `var.interval` is set to 2 hours (2h). Consider changing this interval to a lower value, such as 10 minutes (10m). - See the following references for further information: - https://support.google.com/a/answer/7061566 - https://www.elastic.co/guide/en/beats/filebeat/current/filebeat-module-google_workspace.html
Rule query
editevent.dataset:"google_workspace.admin" and event.type:change and event.category:iam and google_workspace.event.type:"USER_SETTINGS" and event.action:"MOVE_USER_TO_ORG_UNIT"
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
-
Technique:
- Name: Account Manipulation
- ID: T1098
- Reference URL: https://attack.mitre.org/techniques/T1098/
-
Sub-technique:
- Name: Additional Cloud Roles
- ID: T1098.003
- Reference URL: https://attack.mitre.org/techniques/T1098/003/