Sigma medium test sigma

Network Connection Initiated To BTunnels Domains

Detects network connections to BTunnels domains initiated by a process on the system. Attackers can abuse that feature to establish a reverse shell or persistence on a machine.

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Detection Logic

{
  "selection": {
    "Initiated": "true",
    "DestinationHostname
| endswith": ".btunnel.co.in"
  },
  "condition": "selection"
}

False Positives

  • ⚠ Legitimate use of BTunnels will also trigger this.

Field Validations

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