Hayabusa high test sigma
HackTool - SysmonEnte Execution
Detects the use of SysmonEnte, a tool to attack the integrity of Sysmon
Detection Logic
{
"process_access": {
"EventID": 10,
"Channel": "Microsoft-Windows-Sysmon/Operational"
},
"selection_sysmon": {
"TargetImage
| contains": [
":\\Windows\\Sysmon.exe",
":\\Windows\\Sysmon64.exe",
":\\Windows\\Sysmon64a.exe"
],
"GrantedAccess": "0x1400"
},
"selection_calltrace": {
"CallTrace": "Ente"
},
"filter_main_generic": {
"SourceImage
| contains": [
":\\Program Files (x86)\\",
":\\Program Files\\",
":\\Windows\\System32\\",
":\\Windows\\SysWOW64\\"
]
},
"filter_main_msdefender": {
"SourceImage
| contains": ":\\ProgramData\\Microsoft\\Windows Defender\\Platform\\",
"SourceImage
| endswith": "\\MsMpEng.exe"
},
"condition": "process_access and (( selection_sysmon and not 1 of filter_main_* ) or selection_calltrace)"
} False Positives
- ⚠ Unknown
Field Validations
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