05623600 is referenced by 441 patents and cites 13 patents.

A system for detecting and eliminating viruses on a computer network includes a File Transfer Protocol (FTP) proxy server, for controlling the transfer of files and a Simple Mail Transfer Protocol (SMTP) proxy server for controlling the transfer of mail messages through the system. The FTP proxy server and SMTP proxy server run concurrently with the normal operation of the system and operate in a manner such that viruses transmitted to or from the network in files and messages are detected before transfer into or from the system. The FTP proxy server and SMTP proxy server scan all incoming and outgoing files and messages, respectively before transfer for viruses and then transfer the files and messages, only if they do not contain any viruses. A method for processing a file before transmission into or from the network includes the steps of: receiving the data transfer command and file name; transferring the file to a system node; performing virus detection on the file; determining whether the file contains any viruses; transferring the file from the system to a recipient node if the file does not contain a virus; and deleting the file if the file contains a virus.

Title
Virus detection and removal apparatus for computer networks
Application Number
8/533706
Publication Number
5623600
Application Date
September 26, 1995
Publication Date
April 22, 1997
Inventor
Eva Chen
Cupertino
CA, US
Shuang Ji
Foster City
CA, US
Agent
Greg T Sueoka
Christopher M Tobin
Assignee
Trend Micro Incorporated
CA, US
IPC
G06F 11/00
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