Influence of removable devices on computer worms: Dynamic analysis and control strategies
Journal:
COMPUTERS & MATHEMATICS WITH APPLICATIONS
Key Words:
Equilibrium and stability; Mathematical model; Computer worms; Infected removable devices
Abstract:
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. (C) 2011 Elsevier Ltd. All rights reserved.
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