基于平衡树的良性蠕虫扩散策略  

A New Friendly Worm Propagation Strategy Based on Diffusing Balance Tree

作　　者：王佰玲[1] 方滨兴[1] 云晓春[1] 张宏莉[1] 陈博[1] 刘乙璇[1] 

机构地区：[1]哈尔滨工业大学计算机网络与信息安全技术研究中心,哈尔滨150001

出　　处：《计算机研究与发展》2006年第9期1593-1602,共10页Journal of Computer Research and Development

基　　金：国家自然科学基金项目(60403033)

摘　　要：网络蠕虫已对网络系统安全造成重要威胁,传统防范措施已不再适用.使用良性蠕虫来对抗蠕虫正成为一种新的应急响应技术.提出了良性蠕虫基于网络拓扑信息的扩散技术,并重点研究了基于平衡树的良性蠕虫扩散算法、平衡树的动态生成规则和稳定性增强策略.最后给出一个蠕虫对抗模拟实验,结果表明,和已有的传播策略相比,采用扩散平衡树策略的良性蠕虫扩散速度更快,产生流量影响更小.Worms is a serious and growing threat to network and the traditional anti-virus technologies don＇t currently scale to deal with the worm threat. Friendly worm becomes a new active countermeasure. A diffusing balance-tree-based friendly worm propagation strategy is proposed, and the auto-generation rules and survivability enhancements are also given to account for the expansibility and the stability. As a case study, a simulation on worms cross-spreading is given. The results prove that the balance-tree-based propagation strategy is much more effective. Compared with the traditional ones, it accelerates the propagation speed and reduces the traffic impact on network.

关 键 词：网络安全 良性蠕虫 主动遏制 扩散策略 

分 类 号：TP309.5[自动化与计算机技术—计算机系统结构]