{"id":"f1086bf7-a0c4-4a37-9102-01e573caf4a0","title":"Renamed Whoami Execution","description":"Detects the execution of whoami that has been renamed to a different name to avoid detection","author":"Florian Roth (Nextron Systems)","status":"test","level":"critical","date":"2021-08-12","modified":"2022-10-09","tags":["attack.discovery","attack.t1033","car.2016-03-001"],"technique_ids":["T1033"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://brica.de/alerts/alert/public/1247926/agent-tesla-keylogger-delivered-inside-a-power-iso-daa-archive/","https://app.any.run/tasks/7eaba74e-c1ea-400f-9c17-5e30eee89906/"],"source_path":"rules/windows/process_creation/proc_creation_win_renamed_whoami.yml","source_sha256":"6202f588c35467a152e4fe1917be432a02d6e66b2d5b1ce637eb4f4489f80e61","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_renamed_whoami.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Renamed Whoami Execution\nid: f1086bf7-a0c4-4a37-9102-01e573caf4a0\nstatus: test\ndescription: Detects the execution of whoami that has been renamed to a different name to avoid detection\nreferences:\n    - https://brica.de/alerts/alert/public/1247926/agent-tesla-keylogger-delivered-inside-a-power-iso-daa-archive/\n    - https://app.any.run/tasks/7eaba74e-c1ea-400f-9c17-5e30eee89906/\nauthor: Florian Roth (Nextron Systems)\ndate: 2021-08-12\nmodified: 2022-10-09\ntags:\n    - attack.discovery\n    - attack.t1033\n    - car.2016-03-001\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        OriginalFileName: 'whoami.exe'\n    filter:\n        Image|endswith: '\\whoami.exe'\n    condition: selection and not filter\nfalsepositives:\n    - Unknown\nlevel: critical\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1033","id":"T1033","name":"System Owner/User Discovery","page":"techniques/enterprise/T1033/"}],"data_path":"data/detection-rules/f1086bf7-a0c4-4a37-9102-01e573caf4a0.json","kind":"sigma"}