Kubernetes Events Deleted

Status: test
Severity: medium
Log source: category application, product kubernetes, service audit
Author: Leo Tsaousis (@laripping)
Source: github.com/SigmaHQ/sigma

Detects when events are deleted in Kubernetes. An adversary may delete Kubernetes events in an attempt to evade detection.

MITRE ATT&CK coverage

Tactic	Techniques
Stealth	`T1070` Indicator Removal

Telemetry coverage

Platform	Record / event type
Kubernetes	delete-events: delete events

Rules detecting the same action

These rules filter on the same operation.

Azure AKS Kubernetes Events Deleted (Elastic)
Kubernetes Events Deleted (Elastic)

Rule body

title: Kubernetes Events Deleted
id: 3132570d-cab2-4561-9ea6-1743644b2290
related:
    - id: 225d8b09-e714-479c-a0e4-55e6f29adf35
      type: derived
status: test
description: |
    Detects when events are deleted in Kubernetes.
    An adversary may delete Kubernetes events in an attempt to evade detection.
references:
    - https://microsoft.github.io/Threat-Matrix-for-Kubernetes/techniques/Delete%20K8S%20events/
author: Leo Tsaousis (@laripping)
date: 2024-03-26
tags:
    - attack.stealth
    - attack.t1070
logsource:
    category: application
    product: kubernetes
    service: audit
detection:
    selection:
        verb: 'delete'
        objectRef.resource: 'events'
    condition: selection
falsepositives:
    - Unknown
level: medium

Stages and Predicates

Stage 0: `condition`

selection

Stage 1: `selection`

selection:
    verb: 'delete'
    objectRef.resource: 'events'

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`objectRef.resource`	eq	`events`	`field:"objectRef.resource" kind:eq value:"events"`
`verb`	eq	`delete`	`field:"verb" kind:eq value:"delete"`