{"id":"ee6cea48-c5b6-4304-a332-10fc6446f484","title":"Potential appverifUI.DLL Sideloading","description":"Detects potential DLL sideloading of \"appverifUI.dll\"","author":"X__Junior (Nextron Systems)","status":"test","level":"high","date":"2023-06-20","modified":"","tags":["attack.persistence","attack.privilege-escalation","attack.execution","attack.stealth","attack.t1574.001"],"technique_ids":["T1574.001"],"logsource":{"category":"image_load","product":"windows"},"falsepositives":["Unlikely"],"references":["https://web.archive.org/web/20220519091349/https://fatrodzianko.com/2020/02/15/dll-side-loading-appverif-exe/"],"source_path":"rules/windows/image_load/image_load_side_load_appverifui.yml","source_sha256":"42bf8b5c1bf69fe3b4ffb05ca238e70a9b461a257912bb65891f6e1ee79470c1","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/image_load/image_load_side_load_appverifui.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Potential appverifUI.DLL Sideloading\nid: ee6cea48-c5b6-4304-a332-10fc6446f484\nstatus: test\ndescription: Detects potential DLL sideloading of \"appverifUI.dll\"\nreferences:\n    - https://web.archive.org/web/20220519091349/https://fatrodzianko.com/2020/02/15/dll-side-loading-appverif-exe/\nauthor: X__Junior (Nextron Systems)\ndate: 2023-06-20\ntags:\n    - attack.persistence\n    - attack.privilege-escalation\n    - attack.execution\n    - attack.stealth\n    - attack.t1574.001\nlogsource:\n    category: image_load\n    product: windows\ndetection:\n    selection:\n        ImageLoaded|endswith: '\\appverifUI.dll'\n    filter_main_legit_path:\n        Image:\n            - 'C:\\Windows\\SysWOW64\\appverif.exe'\n            - 'C:\\Windows\\System32\\appverif.exe'\n        ImageLoaded|startswith:\n            - 'C:\\Windows\\System32\\'\n            - 'C:\\Windows\\SysWOW64\\'\n            - 'C:\\Windows\\WinSxS\\'\n    condition: selection and not 1 of filter_main_*\nfalsepositives:\n    - Unlikely\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1574.001","id":"T1574.001","name":"DLL","page":"techniques/enterprise/T1574.001/"}],"data_path":"data/detection-rules/ee6cea48-c5b6-4304-a332-10fc6446f484.json","kind":"sigma"}