Azure Kubernetes Events Deletededit

Identifies when events are deleted in Azure Kubernetes. Kubernetes events are objects that log any state changes. Example events are a container creation, an image pull, or a pod scheduling on a node. An adversary may delete events in Azure Kubernetes in an attempt to evade detection.

Rule type: query

Rule indices:

  • filebeat-*
  • logs-azure*

Severity: medium

Risk score: 47

Runs every: 5m

Searches indices from: now-25m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

  • Elastic
  • Cloud
  • Azure
  • Continuous Monitoring
  • SecOps
  • Log Auditing

Version: 2

Rule authors:

  • Austin Songer

Rule license: Elastic License v2

Investigation guideedit

## Config

The Azure Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.

Rule queryedit

event.dataset:azure.activitylogs and azure.activitylogs.operation_name:"MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/EVENTS.K8S.IO/EVENTS/DELETE" and
event.outcome:(Success or success)

Framework: MITRE ATT&CKTM