{"id":"bbf59793-6efb-4fa1-95ca-a7d288e52c88","title":"Winlogon Notify Key Logon Persistence","description":"Adversaries may abuse features of Winlogon to execute DLLs and/or executables when a user logs in.\nWinlogon.exe is a Windows component responsible for actions at logon/logoff as well as the secure attention sequence (SAS) triggered by Ctrl-Alt-Delete.\n","author":"frack113","status":"test","level":"high","date":"2021-12-30","modified":"2023-08-17","tags":["attack.privilege-escalation","attack.persistence","attack.t1547.004"],"technique_ids":["T1547.004"],"logsource":{"category":"registry_set","product":"windows"},"falsepositives":["Unknown"],"references":["https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1547.004/T1547.004.md#atomic-test-3---winlogon-notify-key-logon-persistence---powershell"],"source_path":"rules/windows/registry/registry_set/registry_set_winlogon_notify_key.yml","source_sha256":"b93812210acf8ebd778c6370e291c0db849b9e235b16b897e57a4d94f9c2628d","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/registry/registry_set/registry_set_winlogon_notify_key.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Winlogon Notify Key Logon Persistence\nid: bbf59793-6efb-4fa1-95ca-a7d288e52c88\nstatus: test\ndescription: |\n    Adversaries may abuse features of Winlogon to execute DLLs and/or executables when a user logs in.\n    Winlogon.exe is a Windows component responsible for actions at logon/logoff as well as the secure attention sequence (SAS) triggered by Ctrl-Alt-Delete.\nreferences:\n    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1547.004/T1547.004.md#atomic-test-3---winlogon-notify-key-logon-persistence---powershell\nauthor: frack113\ndate: 2021-12-30\nmodified: 2023-08-17\ntags:\n    - attack.privilege-escalation\n    - attack.persistence\n    - attack.t1547.004\nlogsource:\n    category: registry_set\n    product: windows\ndetection:\n    selection:\n        TargetObject|endswith: '\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon\\Notify\\logon'\n        Details|endswith: '.dll'\n    condition: selection\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1547.004","id":"T1547.004","name":"Winlogon Helper DLL","page":"techniques/enterprise/T1547.004/"}],"data_path":"data/detection-rules/bbf59793-6efb-4fa1-95ca-a7d288e52c88.json","kind":"sigma"}