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Abstract and Applied Analysis
Volume 2013, Article ID 296940, 6 pages
Research Article

Influence of Removable Devices' Heterouse on the Propagation of Malware

1Department of Computer Science and Technology, North University of China, Taiyuan 030051, China
2Department of Mathematics, North University of China, Taiyuan 030051, China
3Department of Computer Science and Technology, Xinzhou Teachers University, Xinzhou 034000, China

Received 5 September 2013; Accepted 30 September 2013

Academic Editor: Carlo Bianca

Copyright © 2013 Xie Han et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The effects of removable devices’ heterouse in different areas on the propagation of malware spreading via removable devices remain unclear. As a result, in this paper, we present a model incorporating the heterogeneous use of removable devices, obtained by dividing the using rate into local area’s rate, neighbour area’s rate and global area’s rate, and then getting the final rate by multiplying the corresponding area ratio. The model’s equilibria and their stability conditions are obtained mathematically and verified by deterministic and stochastic simulations. Simulation results also indicate that the heterogeneity in using rate significantly changes the prospective propagation course of malware. Additionally, the thresholds of removable devices’ using rate in neighbour area are given, which can guide us in designing effective countermalware method.