A Computer Virus Propagation Model in P2P Networks

Computer viruses are great threats to the operating system and the computer network. In order to handle those emergent situations might appear in the future and make corresponding policies immediately; thorough researches of computer virus propagation are very important and urgently needed. But the spreading methods of computer viruses are different; one simple model is unable to describe all the viruses. On the contrary, different models should be proposed according to the features of different types of viruses. This article proposed a computer virus propagation model to describe those viruses spreading through the P2P file-sharing network. This model took the files in the network as subjects instead of the computers,which are always adopted in the traditional models. It also introduced the notion of hot degree and file-type suitability degree over the sharing files to illustrate the virus propagation more specifically. Valuable conclusions we regained from the model. And the simulation data of this model accorded with the actual statistical data very well.