{"id":"961e0abb-1b1e-4c84-a453-aafe56ad0d34","title":"Execution via stordiag.exe","description":"Detects the use of stordiag.exe to execute schtasks.exe systeminfo.exe and fltmc.exe","author":"Austin Songer (@austinsonger)","status":"test","level":"high","date":"2021-10-21","modified":"2022-12-25","tags":["attack.stealth","attack.t1218"],"technique_ids":["T1218"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Legitimate usage of stordiag.exe."],"references":["https://strontic.github.io/xcyclopedia/library/stordiag.exe-1F08FC87C373673944F6A7E8B18CD845.html","https://twitter.com/eral4m/status/1451112385041911809"],"source_path":"rules/windows/process_creation/proc_creation_win_stordiag_susp_child_process.yml","source_sha256":"f4bee3a8d1c420165d25d78274f814c32d555cd3935acb14ff97e59d761c2dc7","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_stordiag_susp_child_process.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Execution via stordiag.exe\nid: 961e0abb-1b1e-4c84-a453-aafe56ad0d34\nstatus: test\ndescription: Detects the use of stordiag.exe to execute schtasks.exe systeminfo.exe and fltmc.exe\nreferences:\n    - https://strontic.github.io/xcyclopedia/library/stordiag.exe-1F08FC87C373673944F6A7E8B18CD845.html\n    - https://twitter.com/eral4m/status/1451112385041911809\nauthor: Austin Songer (@austinsonger)\ndate: 2021-10-21\nmodified: 2022-12-25\ntags:\n    - attack.stealth\n    - attack.t1218\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        ParentImage|endswith: '\\stordiag.exe'\n        Image|endswith:\n            - '\\schtasks.exe'\n            - '\\systeminfo.exe'\n            - '\\fltmc.exe'\n    filter:\n        ParentImage|startswith: # as first is \"Copy c:\\windows\\system32\\stordiag.exe to a folder\"\n            - 'c:\\windows\\system32\\'\n            - 'c:\\windows\\syswow64\\'\n    condition: selection and not filter\nfalsepositives:\n    - Legitimate usage of stordiag.exe.\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1218","id":"T1218","name":"System Binary Proxy Execution","page":"techniques/enterprise/T1218/"}],"data_path":"data/detection-rules/961e0abb-1b1e-4c84-a453-aafe56ad0d34.json","kind":"sigma"}