Primary Refresh Token Access Attempt

Title: Primary Refresh Token Access Attempt
Status: test
Description:Indicates access attempt to the PRT resource which can be used to move laterally into an organization or perform credential theft
References:
  -https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#possible-attempt-to-access-primary-refresh-token-prt
  -https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
Author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
Date: 2023-09-07
modified:None
Tags:

• -'attack.t1528'
• -'attack.credential-access'

Logsource:

• product: azure
• service: riskdetection

Detection:
  selection:
    riskEventType: 'attemptedPrtAccess'
  condition:selection
Falsepositives:
  -This detection is low-volume and is seen infrequently in most organizations. When this detection appears it's high risk, and users should be remediated.
Level: high