Preventing computer worms from attacking a private computer network through a virtual private network connection

摘要

A system for preventing a computer worm from attacking a private computer network through a virtual private network (VPN) connection includes a client computer and a VPN server. The client computer detects connection attempts to the VPN server. The client computer consults application rules to determine whether an application program running in the client computer and connecting to the VPN server is specifically authorized to connect to the VPN server. The client computer can receive the application rule automatically from the VPN server or manually from a user.