{"id":"bedfc8ad-d1c7-4e37-a20e-e2b0dbee759c","title":"HackTool - SharpEvtMute Execution","description":"Detects the use of SharpEvtHook, a tool that tampers with the Windows event logs","author":"Florian Roth (Nextron Systems)","status":"test","level":"high","date":"2022-09-07","modified":"2023-02-14","tags":["attack.defense-impairment","attack.t1685.001"],"technique_ids":["T1685.001"],"logsource":{"product":"windows","category":"process_creation"},"falsepositives":["Unknown"],"references":["https://github.com/bats3c/EvtMute"],"source_path":"rules/windows/process_creation/proc_creation_win_hktl_sharpevtmute.yml","source_sha256":"5bd3d659be12dbb0b23e4f5178a59c46dfe1f52767b4965e007dfb36fedc6a5d","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_hktl_sharpevtmute.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: HackTool - SharpEvtMute Execution\nid: bedfc8ad-d1c7-4e37-a20e-e2b0dbee759c\nrelated:\n    - id: 49329257-089d-46e6-af37-4afce4290685 # DLL load\n      type: similar\nstatus: test\ndescription: Detects the use of SharpEvtHook, a tool that tampers with the Windows event logs\nreferences:\n    - https://github.com/bats3c/EvtMute\nauthor: Florian Roth (Nextron Systems)\ndate: 2022-09-07\nmodified: 2023-02-14\ntags:\n    - attack.defense-impairment\n    - attack.t1685.001\nlogsource:\n    product: windows\n    category: process_creation\ndetection:\n    selection:\n        - Image|endswith: '\\SharpEvtMute.exe'\n        - Description: 'SharpEvtMute'\n        - CommandLine|contains:\n              - '--Filter \"rule '\n              - '--Encoded --Filter \\\"'\n    condition: selection\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1685.001","id":"T1685.001","name":"Disable or Modify Windows Event Log","page":"techniques/enterprise/T1685.001/"}],"data_path":"data/detection-rules/bedfc8ad-d1c7-4e37-a20e-e2b0dbee759c.json","kind":"sigma"}