GCP Pub/Sub Topic Creation

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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: 5m

Searches indices from: None (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

  • Domain: Cloud
  • Data Source: GCP
  • Data Source: Google Cloud Platform
  • Use Case: Log Auditing
  • Tactic: Collection

Version: 105

Rule authors:

  • Elastic

Rule license: Elastic License v2

Investigation guide

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Rule query

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event.dataset:gcp.audit and event.action:google.pubsub.v*.Publisher.CreateTopic and event.outcome:success

Framework: MITRE ATT&CKTM