1type: trigger
2name: sigmahq/proc_creation_win_hktl_sharpevtmute
3description: |
4  Detects the use of SharpEvtHook, a tool that tampers with the Windows event logs
5filter: |
6  (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && (evt.Parsed.Image endsWith '\\SharpEvtMute.exe' || evt.Parsed.Description == 'SharpEvtMute' || evt.Parsed.CommandLine contains '--Filter "rule ' || evt.Parsed.CommandLine contains '--Encoded --Filter \\"')
7blackhole: 2m
8#status: test
9labels:
10  service: windows
11  confidence: 1
12  spoofable: 0
13  classification:
14   - attack.t1562.002
15
16  label: "HackTool - SharpEvtMute Execution"
17  behavior : "windows:audit"
18  remediation: false
19
20scope:
21  type: ParentProcessId
22  expression: evt.Parsed.ParentProcessId
23
24