{"id":"c30fb093-1109-4dc8-88a8-b30d11c95a5d","title":"Whoami.EXE Execution With Output Option","description":"Detects the execution of \"whoami.exe\" with the \"/FO\" flag to choose CSV as output format or with redirection options to export the results to a file for later use.","author":"Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"medium","date":"2023-02-28","modified":"2023-12-04","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/","https://www.youtube.com/watch?v=DsJ9ByX84o4&t=6s"],"source_path":"rules/windows/process_creation/proc_creation_win_whoami_output.yml","source_sha256":"b1c66c34acc77754685d25cb8456095947ebdebaeca01ac303507c826222e174","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_whoami_output.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Whoami.EXE Execution With Output Option\nid: c30fb093-1109-4dc8-88a8-b30d11c95a5d\nstatus: test\ndescription: Detects the execution of \"whoami.exe\" with the \"/FO\" flag to choose CSV as output format or with redirection options to export the results to a file for later use.\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/\n    - https://www.youtube.com/watch?v=DsJ9ByX84o4&t=6s\nauthor: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)\ndate: 2023-02-28\nmodified: 2023-12-04\ntags:\n    - attack.discovery\n    - attack.t1033\n    - car.2016-03-001\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_main_img:\n        - Image|endswith: '\\whoami.exe'\n        - OriginalFileName: 'whoami.exe'\n    selection_main_cli:\n        CommandLine|contains:\n            - ' /FO CSV'\n            - ' -FO CSV'\n    selection_special:\n        CommandLine|contains: 'whoami*>'\n    condition: all of selection_main_* or selection_special\nfalsepositives:\n    - Unknown\nlevel: medium\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/c30fb093-1109-4dc8-88a8-b30d11c95a5d.json","kind":"sigma"}