JOURNAL OF CHINA UNIVERSITIES OF POSTS AND TELECOM ›› 2018, Vol. 25 ›› Issue (4): 86-93.doi: 10.19682/j.cnki.1005-8885.2018.1020

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Dynamic model of computer viruses under the effect of removable media and external computers

Cai Xiumei, Liu Chao, Huang Xianying, Liu Xiaoyang, Cao Qiong, Yang Hongyu   

  1. School of Computer Science and Engineering, Chongqing University of Technology, Chongqing 400054, China
  • Received:2018-06-12 Revised:2018-08-26 Online:2018-08-30 Published:2018-11-02
  • Contact: Liu Chao,
  • About author:Liu Chao,
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (61503052, 61503050, 61603065, 61573075), Scientific and Technological Research Program of Chongqing Municipal Education Commission (KJQN201801120, KJQN201801104, KJ17092060), China Postdoctoral Science
    Foundation (2017M612911) and Chongqing Science and Technology Commission Technology Innovation and Application Demonstration Project (cstc2018jscx-msybX0049).

Abstract: This paper investigates the propagation of computer viruses and establishes a novel propagation model. In contrast to the existing models, this model can directly indicate the impact of removable media and external computers on the propagation of computer virus. The stability results of equilibrium point are derived by Hurwitz criterion and Bendixson Dulac criterion. The effectiveness of the proposed results is shown by numerical simulation. In order to show the superiority of the proposed model, some comparisons with the existing models are presented. The acceptable threshold and the reasonable strategies for suppressing the propagation of computer virus are also suggested, respectively.

Key words: computer virus, external computer, removable medium, viral equilibrium point, global stability

CLC Number: