Hayabusa high stable sigma

Windows Defender Configuration Changes

Detects suspicious changes to the Windows Defender configuration

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Detection Logic

{
  "windefend": {
    "Channel": "Microsoft-Windows-Windows Defender/Operational"
  },
  "selection": {
    "EventID": 5007,
    "NewValue
| contains": [
      "\\Windows Defender\\DisableAntiSpyware ",
      "\\Windows Defender\\Scan\\DisableRemovableDriveScanning ",
      "\\Windows Defender\\Scan\\DisableScanningMappedNetworkDrivesForFullScan ",
      "\\Windows Defender\\SpyNet\\DisableBlockAtFirstSeen ",
      "\\Real-Time Protection\\SpyNetReporting "
    ]
  },
  "condition": "windefend and selection"
}

False Positives

  • ⚠ Administrator activity (must be investigated)

Field Validations

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