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Based on the defense mechanism of the worm worms

Author: LuoWeiMin
Tutor: ZhangFengLi
School: University of Electronic Science and Technology
Course: Information and Communication Engineering
Keywords: Network Security Benign worms Immunity Quality nodes
CLC: TP393.08
Type: Master's thesis
Year: 2009
Downloads: 66
Quote: 1
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Abstract


Worm as an important part of malicious code family of Internet network security serious harm. Along with the constant improvement of the network security defense mechanism , the worms are constantly improve their dissemination mechanism , new worms are emerging . In recent years , with the spread of botnets mailing worm and P2P network P2P worm spread on the Internet a great deal of impact , these two types of new worm propagation model and propagation network environment with the traditional Internet worm has a distinctly different , so the traditional worm defense mechanisms can not be effective against worm attacks . By analyzing the characteristics of the Internet worm , combined with the topological characteristics of the e-mail network and P2P network as the main tool to benign worm - depth study of the relevant strategies against e-mail worms and P2P worm main functions include: Internet worms , e-mail worms , P2P worms and worm detailed analysis summarizes the research progress of the worm and abroad . For mailing worm based the passive worm centralized defense strategy , the use of e-mail network rendering power-law characteristics of benign worms , of benign worms management server and mail server the three linkage establish defense system . P2P worms propose a strategy based on the hybrid benign worms priority trends of quality node (APTHQN) . Of the two strategies proposed by the theoretical analysis and simulation analysis . The analysis results show that : the immune node type , immunization starting time , the mail server for centralized defense strategies involved in the defense time and worms, e-mail the correct rate and has close ties with the e-mail worm propagation ; APTHQN strategy to reach the consumption of network resources few good defensive effect design requirements .

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