METHOD, SYSTEM AND COMPUTER PROGRAM PRODUCT FOR DETECTING SECURITY THREATS IN A COMPUTER NETWORK

A method, system and computer program product detect attempts to send significant amounts of information out via HTTP tunnels to rogue Web servers from within an otherwise firewalled network. A related goal is to help detect spyware programs. Filters, based on the analysis of HTTP traffic over a training period, help detect anomalies in outbound HTTP traffic using metrics such as request regularity, bandwidth usage, inter-request delay time, and transaction size.