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Influence of removable devices on computer worms: dynamic analysis and control strategies. (English) Zbl 1219.37065
Summary: Worms spreading via both Web-based scanning and removable devices account for a major part of threats on internet. However, their dynamical behavior and controlling methods remain unclear. As a result, we present a computer worm model incorporating specific features unique to those worms, in this paper. The threshold value R 0 determining whether the worms die out is obtained. Theoretical analysis shows that if R 0 <1 the disease-free equilibrium is globally asymptotically stable; otherwise, the disease will be prevalent. Additionally, some control strategies are given. Our results are illustrated by numerical simulations.
37N35Dynamical systems in control
68M11Internet topics
34D23Global stability of ODE
94A13Detection theory
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