Worm blocking system and method using hardware-based pattern matching

The present invention relates generally to a worm blocking system including a dedicated hardware-based board for performing pattern matching without a change in an existing network environment, which is installed in front of a network to be protected, inspects whether worm-related patterns exist on all packets on communication lines without loss or delay, passes packets through the system or blocks packets according to corresponding security rules and informs an administrator of results in real time, and a worm blocking method. In particular, the present invention relates to a hardware-based system and method for detecting and blocking worm-related packets which is suitable for a gigabit environment.