The present invention is to block a packet of an intrusion behavior and, more particularly, relates to a system for analyzing a user behavior in an image surveillance system based on a network, which collects the packet passing through the network in the image surveillance system, and compares the same with a system control command signal pattern, so when being matched with each other, an original packet is recorded, stored, and combined to generate event information on the user behavior. The system of the present invention analyzes packet data transmitted to and received from an image processing server, determines whether the event information on the user behavior including predetermined pattern data is included or not, and analyzes the predetermined pattern data corresponding to user event data.;COPYRIGHT KIPO 2016
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