Azure Automation Runbook Deleted

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Identifies when an Azure Automation runbook is deleted. An adversary may delete an Azure Automation runbook in order to disrupt their target’s automated business operations or to remove a malicious runbook that was used for persistence.

Rule type: query

Rule indices:

  • filebeat-*

Severity: low

Risk score: 21

Runs every: 5 minutes

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
  • Configuration Audit

Version: 1

Added (Elastic Stack release): 7.10.0

Rule authors: Elastic

Rule license: Elastic License

Investigation guide

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The Azure Filebeat module must be enabled to use this rule.

Rule query

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event.dataset:azure.activitylogs and azure.activitylogs.operation_name
:MICROSOFT.AUTOMATION/AUTOMATIONACCOUNTS/RUNBOOKS/DELETE and
event.outcome:Success