GCP Pub/Sub Topic Creationedit
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
Rule indices:
- filebeat-*
- logs-gcp*
Severity: low
Risk score: 21
Runs every: 5 minutes
Searches indices from: now-6m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Cloud
- GCP
- Continuous Monitoring
- SecOps
- Log Auditing
Version: 5 (version history)
Added (Elastic Stack release): 7.10.0
Last modified (Elastic Stack release): 7.13.0
Rule authors: Elastic
Rule license: Elastic License v2
Potential false positivesedit
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.
Investigation guideedit
## Config The GCP Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.
Rule queryedit
event.dataset:(googlecloud.audit or gcp.audit) and event.action:google.pubsub.v*.Publisher.CreateTopic and event.outcome:success
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Collection
- ID: TA0009
- Reference URL: https://attack.mitre.org/tactics/TA0009/
-
Technique:
- Name: Data from Cloud Storage Object
- ID: T1530
- Reference URL: https://attack.mitre.org/techniques/T1530/
Rule version historyedit
- Version 5 (7.13.0 release)
-
- Formatting only
- Version 4 (7.12.0 release)
-
- Formatting only
- 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
-