Identifies the creation of a topic in Google Cloud Platform (GCP). In GCP, the publisher-subscriber relationship (Pub/Sub) is an asynchronous messaging service that decouples event-producing and event-processing services. A topic is used to forward messages from publishers to subscribers.
Rule type: query
Risk score: 21
Runs every: 5 minutes
Maximum alerts per execution: 100
- Continuous Monitoring
- Log Auditing
Version: 3 (version history)
Added (Elastic Stack release): 7.10.0
Last modified (Elastic Stack release): 7.11.2
Rule authors: Elastic
Rule license: Elastic License
Topic creations may be done by a system or network administrator. Verify whether the user email, resource name, and/or hostname should be making changes in your environment. Topic creations from unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
The GCP Filebeat module must be enabled to use this rule.
event.dataset:(googlecloud.audit or gcp.audit) and event.action:google.pubsub.v*.Publisher.CreateTopic and event.outcome:success
Framework: MITRE ATT&CKTM
- Version 3 (7.11.2 release)
- Formatting only
- Version 2 (7.11.0 release)
Updated query, changed from:
event.dataset:googlecloud.audit and event.action:google.pubsub.v*.Publisher.CreateTopic and event.outcome:success