{"id":"e1d02b53-c03c-4948-b11d-4d00cca49d03","title":"Increased Failed Authentications Of Any Type","description":"Detects when sign-ins increased by 10% or greater.","author":"Mark Morowczynski '@markmorow', MikeDuddington, '@dudders1'","status":"test","level":"medium","date":"2022-08-11","modified":"","tags":["attack.privilege-escalation","attack.persistence","attack.initial-access","attack.stealth","attack.t1078"],"technique_ids":["T1078"],"logsource":{"product":"azure","service":"signinlogs"},"falsepositives":["Unlikely"],"references":["https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#monitoring-for-failed-unusual-sign-ins"],"source_path":"rules/cloud/azure/signin_logs/azure_ad_auth_failure_increase.yml","source_sha256":"f6a43e550abf054fe7a8e441ce7c2451e97b0e59a81d49fc1f71bedd13abe257","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/cloud/azure/signin_logs/azure_ad_auth_failure_increase.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Increased Failed Authentications Of Any Type\nid: e1d02b53-c03c-4948-b11d-4d00cca49d03\nstatus: test\ndescription: Detects when sign-ins increased by 10% or greater.\nreferences:\n    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#monitoring-for-failed-unusual-sign-ins\nauthor: Mark Morowczynski '@markmorow', MikeDuddington, '@dudders1'\ndate: 2022-08-11\ntags:\n    - attack.privilege-escalation\n    - attack.persistence\n    - attack.initial-access\n    - attack.stealth\n    - attack.t1078\nlogsource:\n    product: azure\n    service: signinlogs\ndetection:\n    selection:\n        Status: failure\n        Count: \"<10%\"\n    condition: selection\nfalsepositives:\n    - Unlikely\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1078","id":"T1078","name":"Valid Accounts","page":"techniques/enterprise/T1078/"}],"data_path":"data/detection-rules/e1d02b53-c03c-4948-b11d-4d00cca49d03.json","kind":"sigma"}