{"id":"48917adc-a28e-4f5d-b729-11e75da8941f","title":"Suspicious Windows Defender Folder Exclusion Added Via Reg.EXE","description":"Detects the usage of \"reg.exe\" to add Defender folder exclusions. Qbot has been seen using this technique to add exclusions for folders within AppData and ProgramData.","author":"frack113","status":"test","level":"medium","date":"2022-02-13","modified":"2023-02-04","tags":["attack.defense-impairment","attack.t1685"],"technique_ids":["T1685"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Legitimate use"],"references":["https://thedfirreport.com/2022/02/07/qbot-likes-to-move-it-move-it/","https://redcanary.com/threat-detection-report/threats/qbot/"],"source_path":"rules/windows/process_creation/proc_creation_win_reg_defender_exclusion.yml","source_sha256":"a87d9da7d6d087ca8c57e7c7291f6ed1ff8b0bd702dd3763e33504eb4d1c8b1a","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_reg_defender_exclusion.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Suspicious Windows Defender Folder Exclusion Added Via Reg.EXE\nid: 48917adc-a28e-4f5d-b729-11e75da8941f\nstatus: test\ndescription: Detects the usage of \"reg.exe\" to add Defender folder exclusions. Qbot has been seen using this technique to add exclusions for folders within AppData and ProgramData.\nreferences:\n    - https://thedfirreport.com/2022/02/07/qbot-likes-to-move-it-move-it/\n    - https://redcanary.com/threat-detection-report/threats/qbot/\nauthor: frack113\ndate: 2022-02-13\nmodified: 2023-02-04\ntags:\n    - attack.defense-impairment\n    - attack.t1685\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        Image|endswith: '\\reg.exe'\n        CommandLine|contains:\n            - 'SOFTWARE\\Microsoft\\Windows Defender\\Exclusions\\Paths'\n            - 'SOFTWARE\\Microsoft\\Microsoft Antimalware\\Exclusions\\Paths'\n        CommandLine|contains|all:\n            - 'ADD '\n            - '/t '\n            - 'REG_DWORD '\n            - '/v '\n            - '/d '\n            - '0'\n    condition: selection\nfalsepositives:\n    - Legitimate use\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1685","id":"T1685","name":"Disable or Modify Tools","page":"techniques/enterprise/T1685/"}],"data_path":"data/detection-rules/48917adc-a28e-4f5d-b729-11e75da8941f.json","kind":"sigma"}