论文部分内容阅读
提出一种在P2P网络中传播的混合型蠕虫,即以概率γ体现P2P被动型蠕虫传播特点,以概率(1-γ)体现P2P沉默型蠕虫传播特点.分析该类P2P蠕虫传播过程中主机间的状态转换过程后,基于传染病模型对其传播过程进行了数学建模.该模型考虑了蠕虫执行环境差异,变化的P2P文件下载速率以及地址隐藏三个P2P蠕虫传播过程中的重要因素.仿真实验验证了传播模型的有效性,并且对于影响P2P混合型蠕虫的传播参数进行了讨论.
This paper proposes a hybrid worm that spreads in P2P networks, that is, the characteristic of P2P passive worm propagation is represented by probability γ and the propagation characteristics of P2P silent worm by probability (1-γ) , The mathematical model of its propagation process is established based on the epidemic model.The model considers the important factors in the worm propagation environment, such as the difference of execution environment, the change of P2P file download speed and address hiding. The validity of the propagation model is experimentally verified, and the propagation parameters influencing P2P hybrid worms are discussed.