description-logo Description

This indicates an attempt to use the Systat protocol.
Systat or Active Users is a protocol for debugging and measurement. A connection to an active port will return a list of currently active users on the host without regard to the input.

affected-products-logoAffected Products

Systat

Impact logoImpact

Unexpected network communication

Technology

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

Behavior

  • Reasonable

Default Ports

  • TCP/11