Application Removed from Blocklist in Google Workspace
editApplication Removed from Blocklist in Google Workspace
editGoogle Workspace administrators may be aware of malicious applications within the Google marketplace and block these applications for user security purposes. An adversary, with administrative privileges, may remove this application from the explicit block list to allow distribution of the application amongst users. This may also indicate the unauthorized use of an application that had been previously blocked before by a user with admin privileges.
Rule type: query
Rule indices:
- filebeat-*
- logs-google_workspace*
Severity: medium
Risk score: 47
Runs every: 10 minutes
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
- Impair Defenses
Version: 2 (version history)
Added (Elastic Stack release): 8.5.0
Last modified (Elastic Stack release): 8.6.0
Rule authors: Elastic
Rule license: Elastic License v2
Potential false positives
editApplications can be added and removed from blocklists by Google Workspace administrators. Verify that the configuration change was expected. Exceptions can be added to this rule to filter expected behavior.
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.category:"iam" and event.type:"change" and event.action:"CHANGE_APPLICATION_SETTING" and google_workspace.admin.application.name:"Google Workspace Marketplace" and google_workspace.admin.old_value: *allowed*false* and google_workspace.admin.new_value: *allowed*true*
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Impair Defenses
- ID: T1562
- Reference URL: https://attack.mitre.org/techniques/T1562/
Rule version history
edit- Version 2 (8.6.0 release)
-
- Formatting only