Design of heuristic identification system for file transfer based on network data stream
Jian Zhang · Jisuanji gongcheng yu sheji · 2011
In order to prevent files leakage through the network,the network transmission document format,the transmission form and communication behavior characteristics is studied.And a kind of file transfer recognition methods based on the network data stream is proposed.By introducing the concept of file data stream,the file fingerprint database with specific characteristics is constructed,and the depth protocol analysis is adopted using adaptive technology.A multi-level heuristic identification system is designed to detect the content and behavior characteristic information displayed in the file transfer communication protocol.Test results indicate that the system runs efficient and the results are accurate.