{"id":"28eea407-28d7-4e42-b0be-575d5ba60b2c","title":"Azure AD Only Single Factor Authentication Required","description":"Detect when users are authenticating without MFA being required.","author":"MikeDuddington, '@dudders1'","status":"test","level":"low","date":"2022-07-27","modified":"","tags":["attack.privilege-escalation","attack.persistence","attack.initial-access","attack.credential-access","attack.stealth","attack.defense-impairment","attack.t1078.004","attack.t1556.006"],"technique_ids":["T1078.004","T1556.006"],"logsource":{"product":"azure","service":"signinlogs"},"falsepositives":["If this was approved by System Administrator."],"references":["https://learn.microsoft.com/en-gb/entra/architecture/security-operations-user-accounts"],"source_path":"rules/cloud/azure/signin_logs/azure_ad_only_single_factor_auth_required.yml","source_sha256":"480563bd2a64ddddcd595b26b66379dd3c66cf10453b2e8c8407cfdb6612db4c","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/cloud/azure/signin_logs/azure_ad_only_single_factor_auth_required.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Azure AD Only Single Factor Authentication Required\nid: 28eea407-28d7-4e42-b0be-575d5ba60b2c\nstatus: test\ndescription: Detect when users are authenticating without MFA being required.\nreferences:\n    - https://learn.microsoft.com/en-gb/entra/architecture/security-operations-user-accounts\nauthor: MikeDuddington, '@dudders1'\ndate: 2022-07-27\ntags:\n    - attack.privilege-escalation\n    - attack.persistence\n    - attack.initial-access\n    - attack.credential-access\n    - attack.stealth\n    - attack.defense-impairment\n    - attack.t1078.004\n    - attack.t1556.006\nlogsource:\n    product: azure\n    service: signinlogs\ndetection:\n    selection:\n        Status: 'Success'\n        AuthenticationRequirement: 'singleFactorAuthentication'\n    condition: selection\nfalsepositives:\n    - If this was approved by System Administrator.\nlevel: low\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1078.004","id":"T1078.004","name":"Cloud Accounts","page":"techniques/enterprise/T1078.004/"},{"key":"enterprise/T1556.006","id":"T1556.006","name":"Multi-Factor Authentication","page":"techniques/enterprise/T1556.006/"}],"data_path":"data/detection-rules/28eea407-28d7-4e42-b0be-575d5ba60b2c.json","kind":"sigma"}