Hayabusa medium test sigma

Allow RDP Remote Assistance Feature

Detect enable rdp feature to allow specific user to rdp connect on the targeted machine

View Source

Detection Logic

{
  "registry_set": {
    "EventID": 4657,
    "Channel": "Security"
  },
  "selection": {
    "ObjectName
| endswith": "System\\CurrentControlSet\\Control\\Terminal Server\\fAllowToGetHelp",
    "NewValue": "DWORD (0x00000001)"
  },
  "condition": "registry_set and selection"
}

False Positives

  • ⚠ Legitimate use of the feature (alerts should be investigated either way)

Field Validations

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