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Communication To LocaltoNet Tunneling Service Initiated

Sigma Rules

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Summary
This threat detection rule focuses on identifying network connections initiated by executables towards LocaltoNet tunneling service sub-domains, specifically those ending in '.localto.net' or '.localtonet.com'. LocaltoNet acts as a reverse proxy, allowing local services to be publicly accessible over the Internet. This can present a security risk, as it has been leveraged by attackers for command-and-control operations, helping them circumvent multi-factor authentication (MFA) and perimeter defenses. Such misuse highlights the need for vigilance against unauthorized communication attempts to these tunneling services, which could indicate an ongoing breach or lateral movement within the network.
Categories
  • Network
  • Endpoint
  • Windows
Data Sources
  • Network Traffic
Created: 2024-06-17