{"id":"c70e019b-1479-4b65-b0cc-cd0c6093a599","title":"PowerShell Called from an Executable Version Mismatch","description":"Detects PowerShell called from an executable by the version mismatch method","author":"Sean Metcalf (source), Florian Roth (Nextron Systems)","status":"test","level":"high","date":"2017-03-05","modified":"2023-10-27","tags":["attack.execution","attack.t1059.001"],"technique_ids":["T1059.001"],"logsource":{"product":"windows","category":"ps_classic_start"},"falsepositives":["Unknown"],"references":["https://adsecurity.org/?p=2921"],"source_path":"rules/windows/powershell/powershell_classic/posh_pc_exe_calling_ps.yml","source_sha256":"41e8514871c4c6ece8a1e4cff43489f0dadb7d067de923eed1498cb37545f6f6","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/powershell/powershell_classic/posh_pc_exe_calling_ps.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: PowerShell Called from an Executable Version Mismatch\nid: c70e019b-1479-4b65-b0cc-cd0c6093a599\nstatus: test\ndescription: Detects PowerShell called from an executable by the version mismatch method\nreferences:\n    - https://adsecurity.org/?p=2921\nauthor: Sean Metcalf (source), Florian Roth (Nextron Systems)\ndate: 2017-03-05\nmodified: 2023-10-27\ntags:\n    - attack.execution\n    - attack.t1059.001\nlogsource:\n    product: windows\n    category: ps_classic_start\ndetection:\n    selection_engine:\n        Data|contains:\n            - 'EngineVersion=2.'\n            - 'EngineVersion=4.'\n            - 'EngineVersion=5.'\n    selection_host:\n        Data|contains: 'HostVersion=3.'\n    condition: all of selection_*\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1059.001","id":"T1059.001","name":"PowerShell","page":"techniques/enterprise/T1059.001/"}],"data_path":"data/detection-rules/c70e019b-1479-4b65-b0cc-cd0c6093a599.json","kind":"sigma"}