Hayabusa high test sigma

UAC Bypass via Sdclt

Detects the pattern of UAC Bypass using registry key manipulation of sdclt.exe (e.g. UACMe 53)

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Detection Logic

{
  "registry_set": {
    "EventID": 13,
    "Channel": "Microsoft-Windows-Sysmon/Operational"
  },
  "selection1": {
    "TargetObject
| endswith": "Software\\Classes\\exefile\\shell\\runas\\command\\isolatedCommand"
  },
  "selection2": {
    "TargetObject
| endswith": "Software\\Classes\\Folder\\shell\\open\\command\\SymbolicLinkValue",
    "Details
| re": "-1[0-9]{3}\\\\Software\\\\Classes\\\\"
  },
  "condition": "registry_set and (1 of selection*)"
}

False Positives

  • ⚠ Unknown

Field Validations

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