Windows.File.Sharing

description-logo Description

This indicates an attempt to use the SMB protocol.
Microsoft Server Message Block (SMB) protocol is a network file sharing and printer sharing protocol available on multiple Operating Systems. Its purpose includes file sharing, dialect negotiation, locating other SMB protocol servers, printing, access authentication, record locking, change notification, file attribute handling and unicode support.

affected-products-logoAffected Products

SMB

Impact logoImpact

Network bandwidth consumption

Technology

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

Behavior

  • Reasonable

Default Ports

  • TCP/137
  • TCP/139
  • TCP/445

Version Updates

Date Version Detail
2023-02-02 22.488 Sig Added