摘要
传统恶意代码在网络中通常尽最大能力进行传播,这种不受控制传播使得许多不具有攻击价值的主机被感染,从而影响了网络性能,另一方面,也增大了恶意代码被截获的概率。针对该问题,文中提出了一种恶意代码传播效果的控制方法。该方法从限定恶意代码的生存期、调节传播途径、限制传播范围三方面对恶意代码的传播效果进行综合调控。仿真实验详细分析比较了上述三因素对恶意代码的传播速度、感染主机数量、完成整个传播耗时等传播性能的影响。结果表明,与已有的方法相比,该方法明显提高了恶意代码的传播综合性能。
Traditional malware codes always try their best to propagate in the network.The uncontrolled propagation makes many worthless computers attacked,which affects the network performance.On the other hand,it also increases the probability of exposure.In this paper,a control method of malware code is proposed.The method systematically control the malware code propagation effect from setting survival time,regulating propagation approachs and restricting propagation range.As a case study,a comparative simulation is given,which shows the influence of above factors on malware code's propagation performance,such as,propagation velocity,quantity of affected computers and infectious period.The results prove that the method is more effective.Compared with the traditional ones,it improves the general propagation performance.
出处
《计算机技术与发展》
2010年第8期128-132,共5页
Computer Technology and Development
基金
国家自然科学基金(60973139
60773041)
江苏省自然科学基金(BK2008451)
博士后基金(20090451241)
关键词
网络安全
恶意代码
受控传播
多途径传播
生存期控制
network security
malware code
controllable propagation
mutliple approach propagation
survival time control