Azure new owner added for service principal

azure

Classification:

attack

Tactic:

TA0003-persistence

Technique:

T1098-account-manipulation

Set up the azure integration.

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Goal

Detect when a new owner is added to a service principal, which applies to privilege escalation or persistence.

Strategy

Monitor Azure Active Directory logs where @evt.name is "Add owner to service principal" and @evt.outcome of Success.

Triage and response

  1. Inspect that the user is added to a service principal in @properties.targetResources.
  2. Verify with the user ({{@usr.name}}) to determine if the owner addition is legitimate.