Azure Automation Webhook Created

Identifies when an Azure Automation webhook is created. Azure Automation runbooks can be configured to execute via a webhook. A webhook uses a custom URL passed to Azure Automation along with a data payload specific to the runbook. An adversary may create a webhook in order to trigger a runbook that contains malicious code.

Rule type: query

Rule indices:

filebeat-*
logs-azure*

Severity: low

Risk score: 21

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
Configuration Audit

Version: 7

Rule authors:

Elastic

Rule license: Elastic License v2

Investigation guide

edit

Rule query

edit

event.dataset:azure.activitylogs and
  azure.activitylogs.operation_name:
    (
      "MICROSOFT.AUTOMATION/AUTOMATIONACCOUNTS/WEBHOOKS/ACTION" or
      "MICROSOFT.AUTOMATION/AUTOMATIONACCOUNTS/WEBHOOKS/WRITE"
    ) and
  event.outcome:(Success or success)

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