基于复杂网络理论的即时通讯病毒研究

通过仿真分析了即时通讯病毒的传播特性,其传播速度非常迅速,并且在无标度网络上比在其他网络拓扑结构下传播得更快。单独增强用户的安全意识只能减少病毒的感染范围,不能减缓病毒的传播速度。结合复杂网络理论提出了监控和防御即时通讯病毒的一条思路,引入杀毒软件的病毒库的概念,使即时通讯软件能对已知病毒免疫。根据病毒的传播特点和即时通讯网络的无标度特性分别提出了基于IM客户端的监控方案和基于服务器端的病毒监控方案。

An Investigation on Instant Messaging Worm Based on Complex Network Theory

The dynamics of Instant Message(IM) Worm is investigated through numerical simulations,which spreads faster on scale-free networks than on other types of networks.We find that enhancing users' sense of security can only reduce the impact of IM worm,but can not slow down its propagation.Based on the complex network theories,several methods are proposed to slow down and control IM worm,and monitor its outbreak as well.The virus database is introduced to Instant Message software,with which IM software can be immune to the known IM worms.Finally,according to the characteristics of IM worms' propagation and the IM network,we introduce Client-Based and Server-Side-Based monitoring techniques,respectively.