{"id":"7a01183d-71a2-46ad-ad5c-acd989ac1793","title":"UAC Bypass Abusing Winsat Path Parsing - Process","description":"Detects the pattern of UAC Bypass using a path parsing issue in winsat.exe (UACMe 52)","author":"Christian Burkard (Nextron Systems)","status":"test","level":"high","date":"2021-08-30","modified":"2024-12-01","tags":["attack.privilege-escalation","attack.t1548.002"],"technique_ids":["T1548.002"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://github.com/hfiref0x/UACME"],"source_path":"rules/windows/process_creation/proc_creation_win_uac_bypass_winsat.yml","source_sha256":"2f3a963b493c550466d50729455e2466bd45f48d4f46dd5a0132f5b8b4708ea2","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_uac_bypass_winsat.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: UAC Bypass Abusing Winsat Path Parsing - Process\nid: 7a01183d-71a2-46ad-ad5c-acd989ac1793\nstatus: test\ndescription: Detects the pattern of UAC Bypass using a path parsing issue in winsat.exe (UACMe 52)\nreferences:\n    - https://github.com/hfiref0x/UACME\nauthor: Christian Burkard (Nextron Systems)\ndate: 2021-08-30\nmodified: 2024-12-01\ntags:\n    - attack.privilege-escalation\n    - attack.t1548.002\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        IntegrityLevel:\n            - 'High'\n            - 'System'\n            - 'S-1-16-16384' # System\n            - 'S-1-16-12288' # High\n        ParentImage|endswith: '\\AppData\\Local\\Temp\\system32\\winsat.exe'\n        ParentCommandLine|contains: 'C:\\Windows \\system32\\winsat.exe'\n    condition: selection\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1548.002","id":"T1548.002","name":"Bypass User Account Control","page":"techniques/enterprise/T1548.002/"}],"data_path":"data/detection-rules/7a01183d-71a2-46ad-ad5c-acd989ac1793.json","kind":"sigma"}