description-logo Description

This indicates an attempt to use the NetBIOS-SSN protocol.
NetBIOS Session Service (NBSS) is a protocol to connect two computers to transmit heavy data traffic. It is mostly used for printer and file services over a network.

affected-products-logoAffected Products

NetBIOS

Impact logoImpact

Unexpected network communication

Technology

Network-Protocol

Behavior

  • Reasonable

Default Ports

  • TCP/139