GCP Logging Sink Deletion

edit

Identifies a Logging sink deletion in Google Cloud Platform (GCP). Every time a log entry arrives, Logging compares the log entry to the sinks in that resource. Each sink whose filter matches the log entry writes a copy of the log entry to the sink’s export destination. An adversary may delete a Logging sink to evade detection.

Rule type: query

Rule indices:

  • filebeat-*
  • logs-gcp*

Severity: medium

Risk score: 47

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: Defense Evasion

Version: 104

Rule authors:

  • Elastic

Rule license: Elastic License v2

Investigation guide

edit

Rule query

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

Framework: MITRE ATT&CKTM