WSS:一个基于NS2的蠕虫模拟系统

网络蠕虫严重威胁着互联网的安全，然而由于其爆发所具有的突然性和大规模性，使得蠕虫研究面临巨大挑战,本文介绍了一个基于NS2的蠕虫模拟系统-WSS,该系统的建立主要分为三部分：首先通过处理BGP路由表信息来获取模拟中用到的Internet抽象网络，然后以传染病学模型为基础对蠕虫传播进行建模，最后将两者在NS2中相结合实现对蠕虫传播的模拟．实验证明，WSS能够在实验室环境中获取同实际蠕虫爆发时类似的统计数据，在理解蠕虫的宏观行为、预测蠕虫的流量、传播速度及危害等方面有着广泛的应用前景．

WSS:A Novel Worm Simulation System Based on NS2

Internet worms have been a severe threat to the Internet infrastructure and the hosts recently. However, the inherent suddenness and large scale of these phenomena impose big challenges to the studies of the worms. To facilitate the study of the worms this paper describes the design of a worm simulation system based on NS2-WSS, which can be divided into three parts. First,the abstract Internet topology used for simulation is acquired by processing BGP routing data. Second,the spread of the worms based on the epidemiological model is modeled. Finally,the previous two parts in NS2 are integrated to realize the simu lation of worm propagation. The experiment shows that the WSS can obtain similar statistical data in a laboratory environment to those from actual worm explosion. So it will have a wide application prospect in the understanding of the behavior of worms, the prediction of their traffic and speed,harm evaluation,and etc.