计算机病毒的随机传染模型

传染是计算机病毒的主要特征之一,病毒的传染不仅提高了病毒的存活率,而且对计算机系统资源造成破坏和威胁。为了分析计算机病毒在计算机内的微观传染规律,在分析病毒传染机制的基础上,结合当前操作系统的特点,建立和分析了计算机病毒在单个计算机系统内的随机传染模型。得出结论:在单进程操作系统环境下,病毒的感染数量呈线性增长,感染强度相对稳定;在多进程操作系统环境下,病毒的感染数量和感染强度都呈e的指数级增长。最后提出了反病毒传染技术的发展趋势。

Modeling Computer Virus Random Infection

Infection is one of the essential characteristics of computer viruses,which not only enhances subsistent probability of viruses,but damages and imperils computer resources.To study microcosmic infection of computer viruses,based on reseaching infectious mechanism of viruses and operating system characteristics,establishes and analyses the model of computer viruses random infection,which concludes that the number of virus infection increase linearly with steady infection intensity on single-process operating system,both the number of virus infection and infection intensity increase with e exponent on multi-process operating system.At last,brings forward some developmental trends against virus infection.