LoFP / 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 by unfamiliar users or hosts should be investigated. if known behavior is causing false positives, it can be exempted from the rule.

Techniques

• T1530

Sample rules

GCP Pub/Sub Topic Creation

• source: elastic
• technicques:
  • T1530

Description

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.

Detection logic

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