description-logo Description

This indicates an attempt to use the NetBIOS-DGM protocol.
NetBIOS Datagram distribution service is a connection-less protocol that is used for error detection and recovery. It usually runs on UDP port 138.

affected-products-logoAffected Products

NetBIOS

Impact logoImpact

Unexpected network communication

Technology

Browser-Based, Network-Protocol, Client-Server, Peer-to-Peer, Cloud-Based, Mobile-Device

Behavior

  • Reasonable

Default Ports

  • UDP/138