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

Techniques

• T1562

Sample rules

GCP Logging Bucket Deletion

• source: elastic
• technicques:
  • T1562

Description

Identifies a Logging bucket deletion in Google Cloud Platform (GCP). Log buckets are containers that store and organize log data. A deleted bucket stays in a pending state for 7 days, and Logging continues to route logs to the bucket during that time. To stop routing logs to a deleted bucket, you can delete the log sinks that have the bucket as their destination, or modify the filter for the sinks to stop it from routing logs to the deleted bucket. An adversary may delete a log bucket to evade detection.

Detection logic

event.dataset:gcp.audit and event.action:google.logging.v*.ConfigServiceV*.DeleteBucket and event.outcome:success