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Applies to BloodHound Enterprise and CE

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Abuse Info

You can use BARK’s New-AzureAutomationAccountRunBook and Get-AzureAutomationAccountRunBookOutput functions to execute arbitrary commands against the target Automation Account. These functions require you to supply an Azure Resource Manager scoped JWT associated with the principal that has the privilege to add or modify and run Automation Account run books. There are several ways to acquire a JWT. For example, you may use BARK’s Get-ARMTokenWithRefreshToken to acquire an Azure RM-scoped JWT by supplying a refresh token:
Now you can use BARK’s New-AzureAutomationAccountRunBook function to add a new runbook to the target Automation Account, specifying a command to execute using the -Script parameter:
After adding the new runbook, you must execute it and fetch its output. You can do this automatically with BARK’s Get-AzureAutomationAccountRunBookOutput function:
If the Automation Account has a managed identity assignment, you can use these two functions to retrieve a JWT for the service principal like this:
If successful, the output will include a JWT for the managed identity service principal.

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Opsec Considerations

This will depend on which particular abuse you perform, but in general Azure will create a log event for each abuse.

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References