{"id":"102e11e3-2db5-4c9e-bc26-357d42585d21","title":"Bulk Deletion Changes To Privileged Account Permissions","description":"Detects when a user is removed from a privileged role. Bulk changes should be investigated.","author":"Mark Morowczynski '@markmorow', Yochana Henderson, '@Yochana-H'","status":"test","level":"high","date":"2022-08-05","modified":"","tags":["attack.privilege-escalation","attack.persistence","attack.t1098"],"technique_ids":["T1098"],"logsource":{"product":"azure","service":"auditlogs"},"falsepositives":["Legtimate administrator actions of removing members from a role"],"references":["https://learn.microsoft.com/en-us/entra/architecture/security-operations-privileged-identity-management#azure-ad-roles-assignment"],"source_path":"rules/cloud/azure/audit_logs/azure_priviledged_role_assignment_bulk_change.yml","source_sha256":"207ce2a26732f07d73ba5b947e50a1dce441980d77b22e0fb57e844d6fc5c913","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/cloud/azure/audit_logs/azure_priviledged_role_assignment_bulk_change.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Bulk Deletion Changes To Privileged Account Permissions\nid: 102e11e3-2db5-4c9e-bc26-357d42585d21\nstatus: test\ndescription: Detects when a user is removed from a privileged role. Bulk changes should be investigated.\nreferences:\n    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-privileged-identity-management#azure-ad-roles-assignment\nauthor: Mark Morowczynski '@markmorow', Yochana Henderson, '@Yochana-H'\ndate: 2022-08-05\ntags:\n    - attack.privilege-escalation\n    - attack.persistence\n    - attack.t1098\nlogsource:\n    product: azure\n    service: auditlogs\ndetection:\n    selection:\n        properties.message:\n            - Remove eligible member (permanent)\n            - Remove eligible member (eligible)\n    condition: selection\nfalsepositives:\n    - Legtimate administrator actions of removing members from a role\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1098","id":"T1098","name":"Account Manipulation","page":"techniques/enterprise/T1098/"}],"data_path":"data/detection-rules/102e11e3-2db5-4c9e-bc26-357d42585d21.json","kind":"sigma"}