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Elastic Docs ›Elastic Security Solution [master] ›Downloadable rule update v0.14.1

Domain Added to Google Workspace Trusted Domains

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Domain Added to Google Workspace Trusted Domains

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Detects when a domain is added to the list of trusted Google Workspace domains. An adversary may add a trusted domain in order to collect and exfiltrate data from their target’s organization with less restrictive security controls.

Rule type: query

Rule indices:

  • filebeat-*
  • logs-google_workspace*

Severity: high

Risk score: 73

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

Version: 5

Rule authors:

  • Elastic

Rule license: Elastic License v2

Investigation guide

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## Config

The Google Workspace Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.

### 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/master/filebeat-module-google_workspace.html

Rule query

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event.dataset:(gsuite.admin or google_workspace.admin) and event.provider:admin and event.category:iam and event.action:ADD_TRUSTED_DOMAINS
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