【作者】 王长广；

【导师】 马建峰；

【作者基本信息】 西安电子科技大学 ， 计算机应用技术， 2009， 博士

【摘要】 随着无线网络种类的增多和应用范围的越来越广,恶意程序已成为无线网络所面临的重要威胁之一。近年来,恶意程序的研究已成为国际上网络安全和信息安全领域最前沿和最活跃的研究方向之一,无线环境下恶意程序的研究已经开始成为恶意程序研究领域的一个新热点。针对不同的无线网络环境,本文在研究无线环境下恶意程序传播模型的基础上,分析和探讨了移动Ad hoc网络、无线传感器网络、无线蓝牙网络及车载网络中恶意程序的传播机制。仿真实验结果表明,本文所提出的一系列模型均能较好地描述无线环境下恶意程序的传播机制,这就为采取相应的控制策略来防御无线网络中的恶意程序奠定了一定的理论基础。归纳起来,本文的研究成果主要体现在以下几个方面:1.在总结计算机病毒、蠕虫等恶意代码定义的基础上,归纳了恶意程序的定义,同时,还提出了移动恶意程序的概念。2.在分析和比较了几种传统的流行病模型后,着重讨论了如何改进传统的流行病模型来描述无线环境下恶意程序传播,即必须把无线网络的一些特征参数引入到传统的流行病模型中。3.提出了一种移动Ad hoc网络中恶意程序的传播模型,并研究了在该网络中恶意程序的传播机制。4.在分析无线传感器网络中恶意程序传播的TWPM模型后,提出了一种描述基于IEEE 802.15.4标准的无线传感器网络中恶意程序的传播模型,并研究了在该网络中恶意程序的传播机制。5.提出了一种描述蓝牙环境下恶意程序传播的概率模型,并研究了在该网络中恶意程序的传播机制。6.分析了一种描述车载网络中恶意程序传播的模型,并研究了在该网络中恶意程序的传播机制。更多还原

【Abstract】 With the increase of the varieties of wireless networks and the growth of their applications, the attack of malware has become one of the most important threats confronted by wireless networks. Recently, the study on malware attacks has been one of the most advanced and active topics in the fields of network and information security of the world. The study of malware attack in wireless environment has begun to be a newly arisen topic in the fields of malware research.For different wireless environments, such as Mobile Ad hoc Network (MANET), Wireless Sensor Network (WSN), Bluetooth and Vehicle Ad hoc Network (VANET), the propagation mechanisms are analyzed and discussed based on the study of propagation models of malware. The results of simulation experiments show that, the models presented in this paper can better describe the propagation mechanism of malware in wireless environments, which forms the foundation of designing corresponding control strategies to resist wireless malware.In sum, the main research production achieved in the paper is given as follows:1. Based on summarizing the definitions of such malicious codes as computer virus, worms, a new malware definition is proposed. At the same time, the concept of mobile malware is also proposed.2. After analyzing and comparing several kinds of propagation models of epidemics, we mainly discuss how to improve the traditional epidemic models to describe the propagation mechanism of malware in wireless environment. The conclusion is that the characteristic parameters of wireless networks must be introduced into the traditional epidemic model.3. A propagation model of malware in MANETs is presented, and the propagation mechanism of malware in such network is also studied.4. A propagation model of malware in IEEE 802.15.4-based WSN is proposed after analyzing the TWPM propagation model of malware in it, and the propagation mechanism of malware in such network is also studied.5. A probability model of malware propagation in Bluetooth environment is presented, and the propagation mechanism of malware in such network is researched.6. A malware propagation model in VANET is analyzed and the propagation mechanism of malware in it is studied.更多还原