A novel computer virus propagation model and its dynamics. (English) Zbl 1255.68058

Summary: By taking into account the fact that, in general, a computer immediately possesses infectivity as soon as it is infected, a novel computer virus propagation model, known as the SLBS model, is established. It is proved that the dynamic behaviour of the model is determined by a threshold \(R_0\). Specifically, the virus-free equilibrium is globally asymptotically stable if \(R_0\leq 1\), whereas the virulent equilibrium is globally asymptotically stable if \(1<R_0\leq 4\). It is conjectured that the virulent equilibrium is also globally asymptotically stable if \(R_0>4\). These results suggest some effective strategies for eradicating computer viruses distributed in the Internet.


68N99 Theory of software
37N99 Applications of dynamical systems
Full Text: DOI


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