AZT504 - Watcher Tasks#

By configurating a watcher task and a Runbook, an adversary can establish persistence by executing the Runbook on a triggered event.

Resource

Automation Account

Actions

Microsoft.Automation/automationAccounts/runbooks/*

Examples

Az PowerShellAzure REST APIAzure Portal

New-AzAutomationWebhook

PUT https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Automation/automationAccounts/{automationAccountName}/webhooks/{webhookName}?api-version=2015-10-31

watcher

Detections

Detection Details#

No logs are generated when a watcher task is created.

Logs#

Data Source	Operation Name	Action	Log Location
Resource	Create an Azure Automation job	Microsoft.Automation/automationAccounts/jobs/write	Azure Activity Log
Resource	Publish an Azure Automation runbook draft	Microsoft.Automation/automationAccounts/runbooks/publish/action	Azure Activity Log
Resource	Write an Azure Automation runbook draft	Microsoft.Automation/automationAccounts/runbooks/draft/write	Azure Activity Log
Resource	Create or Update an Azure Automation Runbook	Microsoft.Automation/automationAccounts/runbooks/write	Azure Activity Log

Queries#

Log Analytics

|where OperationNameValue=="Microsoft.Automation/automationAccounts/jobs/write" or OperationNameValue=="Microsoft.Automation/automationAccounts/runbooks/publish/action"
 or OperationNameValue=="Microsoft.Automation/automationAccounts/runbooks/draft/write" or OperationNameValue=="Microsoft.Automation/automationAccounts/runbooks/write"

Additional Resources

https://docs.microsoft.com/en-us/azure/automation/automation-scenario-using-watcher-task