Global Analysis of a SEIQV Epidemic Model for Scanning Worms with Quarantine Strategy

Active scanning worms have drawn a significant attention due to their enormous threats to the Internet infrastructure and services. In order to effectively defend against them, this paper proposes a novel epidemic SEIQV model with quarantine strategy. Using this SEIQV model, we obtain the basic reproduction number for determining whether the worm dies out completely. The global stabilities of worm-free equilibrium and endemic equilibrium are proved, and determined by the basic reproduction number. The impact of different parameters of this model is studied. Simulation results show that the number of susceptible, infected and vaccinated hosts are consistent with theoretical analysis. The model provides a theoretical foundation for controlling and forecasting for active scanning worms.