{"id":"a84fc3b1-c9ce-4125-8e74-bdcdb24021f1","title":"Primary Refresh Token Access Attempt","description":"Indicates access attempt to the PRT resource which can be used to move laterally into an organization or perform credential theft","author":"Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'","status":"test","level":"high","date":"2023-09-07","modified":"","tags":["attack.t1528","attack.credential-access"],"technique_ids":["T1528"],"logsource":{"product":"azure","service":"riskdetection"},"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."],"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"],"source_path":"rules/cloud/azure/identity_protection/azure_identity_protection_prt_access.yml","source_sha256":"e58f7475bc395695bf7f693c45e997465d00075dd84c61aa2a971cfb34ed4274","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/cloud/azure/identity_protection/azure_identity_protection_prt_access.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Primary Refresh Token Access Attempt\nid: a84fc3b1-c9ce-4125-8e74-bdcdb24021f1\nstatus: test\ndescription: Indicates access attempt to the PRT resource which can be used to move laterally into an organization or perform credential theft\nreferences:\n    - https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#possible-attempt-to-access-primary-refresh-token-prt\n    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins\nauthor: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'\ndate: 2023-09-07\ntags:\n    - attack.t1528\n    - attack.credential-access\nlogsource:\n    product: azure\n    service: riskdetection\ndetection:\n    selection:\n        riskEventType: 'attemptedPrtAccess'\n    condition: selection\nfalsepositives:\n    - 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.\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1528","id":"T1528","name":"Steal Application Access Token","page":"techniques/enterprise/T1528/"}],"data_path":"data/detection-rules/a84fc3b1-c9ce-4125-8e74-bdcdb24021f1.json","kind":"sigma"}