{"id":"fcddca7c-b9c0-4ddf-98da-e1e2d18b0157","title":"Disabled Windows Defender Eventlog","description":"Detects the disabling of the Windows Defender eventlog as seen in relation to Lockbit 3.0 infections","author":"Florian Roth (Nextron Systems)","status":"test","level":"high","date":"2022-07-04","modified":"2023-08-17","tags":["attack.defense-impairment","attack.t1685"],"technique_ids":["T1685"],"logsource":{"category":"registry_set","product":"windows"},"falsepositives":["Other Antivirus software installations could cause Windows to disable that eventlog (unknown)"],"references":["https://twitter.com/WhichbufferArda/status/1543900539280293889/photo/2"],"source_path":"rules/windows/registry/registry_set/registry_set_disabled_microsoft_defender_eventlog.yml","source_sha256":"65290f68b485b2e91fb2dff69b36771ae805a57723b28549b0028a91666e856f","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/registry/registry_set/registry_set_disabled_microsoft_defender_eventlog.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Disabled Windows Defender Eventlog\nid: fcddca7c-b9c0-4ddf-98da-e1e2d18b0157\nstatus: test\ndescription: Detects the disabling of the Windows Defender eventlog as seen in relation to Lockbit 3.0 infections\nreferences:\n    - https://twitter.com/WhichbufferArda/status/1543900539280293889/photo/2\nauthor: Florian Roth (Nextron Systems)\ndate: 2022-07-04\nmodified: 2023-08-17\ntags:\n    - attack.defense-impairment\n    - attack.t1685\nlogsource:\n    category: registry_set\n    product: windows\ndetection:\n    selection:\n        TargetObject|contains: '\\Microsoft\\Windows\\CurrentVersion\\WINEVT\\Channels\\Microsoft-Windows-Windows Defender/Operational\\Enabled'\n        Details: 'DWORD (0x00000000)'\n    condition: selection\nfalsepositives:\n    - Other Antivirus software installations could cause Windows to disable that eventlog (unknown)\nlevel: high\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/fcddca7c-b9c0-4ddf-98da-e1e2d18b0157.json","kind":"sigma"}