{"id":"e94b9ddc-eec5-4bb8-8a58-b9dc5f4e185f","title":"UEFI Persistence Via Wpbbin - FileCreation","description":"Detects creation of a file named \"wpbbin\" in the \"%systemroot%\\system32\\\" directory. Which could be indicative of UEFI based persistence method","author":"Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"high","date":"2022-07-18","modified":"","tags":["attack.persistence","attack.stealth","attack.t1542.001"],"technique_ids":["T1542.001"],"logsource":{"product":"windows","category":"file_event"},"falsepositives":["Legitimate usage of the file by hardware manufacturer such as lenovo (Thanks @0gtweet for the tip)"],"references":["https://grzegorztworek.medium.com/using-uefi-to-inject-executable-files-into-bitlocker-protected-drives-8ff4ca59c94c","https://persistence-info.github.io/Data/wpbbin.html"],"source_path":"rules/windows/file/file_event/file_event_win_wpbbin_persistence.yml","source_sha256":"cb10b8674f897f77824e060faf052a39c1a14261fc121c9a74c86aa2f69495c9","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/file/file_event/file_event_win_wpbbin_persistence.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: UEFI Persistence Via Wpbbin - FileCreation\nid: e94b9ddc-eec5-4bb8-8a58-b9dc5f4e185f\nstatus: test\ndescription: Detects creation of a file named \"wpbbin\" in the \"%systemroot%\\system32\\\" directory. Which could be indicative of UEFI based persistence method\nreferences:\n    - https://grzegorztworek.medium.com/using-uefi-to-inject-executable-files-into-bitlocker-protected-drives-8ff4ca59c94c\n    - https://persistence-info.github.io/Data/wpbbin.html\nauthor: Nasreddine Bencherchali (Nextron Systems)\ndate: 2022-07-18\ntags:\n    - attack.persistence\n    - attack.stealth\n    - attack.t1542.001\nlogsource:\n    product: windows\n    category: file_event\ndetection:\n    selection:\n        TargetFilename: 'C:\\Windows\\System32\\wpbbin.exe'\n    condition: selection\nfalsepositives:\n    - Legitimate usage of the file by hardware manufacturer such as lenovo (Thanks @0gtweet for the tip)\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1542.001","id":"T1542.001","name":"System Firmware","page":"techniques/enterprise/T1542.001/"}],"data_path":"data/detection-rules/e94b9ddc-eec5-4bb8-8a58-b9dc5f4e185f.json","kind":"sigma"}