{"id":"f24bcaea-0cd1-11eb-adc1-0242ac120002","title":"Uncommon  Assistive Technology Applications Execution Via AtBroker.EXE","description":"Detects the start of a non built-in assistive technology applications via \"Atbroker.EXE\".","author":"Mateusz Wydra, oscd.community","status":"test","level":"medium","date":"2020-10-12","modified":"2024-03-06","tags":["attack.stealth","attack.t1218"],"technique_ids":["T1218"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Legitimate, non-default assistive technology applications execution"],"references":["http://www.hexacorn.com/blog/2016/07/22/beyond-good-ol-run-key-part-42/","https://lolbas-project.github.io/lolbas/Binaries/Atbroker/"],"source_path":"rules/windows/process_creation/proc_creation_win_atbroker_uncommon_ats_execution.yml","source_sha256":"bab0d348aea494fb06a417ae59a03453143e68afa7d045387f9076c36c61e5b3","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_atbroker_uncommon_ats_execution.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Uncommon  Assistive Technology Applications Execution Via AtBroker.EXE\nid: f24bcaea-0cd1-11eb-adc1-0242ac120002\nstatus: test\ndescription: Detects the start of a non built-in assistive technology applications via \"Atbroker.EXE\".\nreferences:\n    - http://www.hexacorn.com/blog/2016/07/22/beyond-good-ol-run-key-part-42/\n    - https://lolbas-project.github.io/lolbas/Binaries/Atbroker/\nauthor: Mateusz Wydra, oscd.community\ndate: 2020-10-12\nmodified: 2024-03-06\ntags:\n    - attack.stealth\n    - attack.t1218\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_img:\n        - Image|endswith: '\\AtBroker.exe'\n        - OriginalFileName: 'AtBroker.exe'\n    selection_cli:\n        CommandLine|contains: 'start'\n    filter_main_builtin:\n        CommandLine|contains:\n            - 'animations'\n            - 'audiodescription'\n            - 'caretbrowsing'\n            - 'caretwidth'\n            - 'colorfiltering'\n            - 'cursorindicator'\n            - 'cursorscheme'\n            - 'filterkeys'\n            - 'focusborderheight'\n            - 'focusborderwidth'\n            - 'highcontrast'\n            - 'keyboardcues'\n            - 'keyboardpref'\n            - 'livecaptions'\n            - 'magnifierpane'\n            - 'messageduration'\n            - 'minimumhitradius'\n            - 'mousekeys'\n            - 'Narrator'\n            - 'osk'\n            - 'overlappedcontent'\n            - 'showsounds'\n            - 'soundsentry'\n            - 'speechreco'\n            - 'stickykeys'\n            - 'togglekeys'\n            - 'voiceaccess'\n            - 'windowarranging'\n            - 'windowtracking'\n            - 'windowtrackingtimeout'\n            - 'windowtrackingzorder'\n    filter_optional_java:\n        CommandLine|contains: 'Oracle_JavaAccessBridge'\n    condition: all of selection_* and not 1 of filter_main_* and not 1 of filter_optional_*\nfalsepositives:\n    - Legitimate, non-default assistive technology applications execution\nlevel: medium\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/f24bcaea-0cd1-11eb-adc1-0242ac120002.json","kind":"sigma"}