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Propagation Behavior of Virus Codes in the Situation That Infected Computers Are Connected to the Internet with Positive Probability

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  • Lu-Xing Yang
  • Xiaofan Yang

Abstract

All the known models describing the propagation of virus codes were based on the assumption that a computer is uninfected at the time it is being connected to the Internet. In reality, however, it is much likely that infected computers are connected to the Internet. This paper is intended to investigate the propagation behavior of virus programs provided infected computers are connected to the Internet with positive probability. For that purpose, a new model characterizing the spread of computer virus is proposed. Theoretical analysis of this model indicates that (1) there is a unique (viral) equilibrium, and (2) this equilibrium is globally asymptotically stable. Further study shows that, by taking active measures, the percentage of infected computers can be made below an acceptable threshold value.

Suggested Citation

  • Lu-Xing Yang & Xiaofan Yang, 2012. "Propagation Behavior of Virus Codes in the Situation That Infected Computers Are Connected to the Internet with Positive Probability," Discrete Dynamics in Nature and Society, Hindawi, vol. 2012, pages 1-13, July.
    • Handle: RePEc:hin:jnddns:693695
    DOI: 10.1155/2012/693695
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