Modeling And Analysis Of Multi-P2P-worms Propagation

A variety of P2 P worms may work in P2 P network at the same time as the capability of client host promoting.Due to different vulnerabilities are able to prepare a different P2 P worm,this may cause a great harm to the Internet.This thesis has proposed a new kind of worm propagation mathematical model which is called modeling and analysis of multi-P2P-worms propagation.It mainly consists of two parts.(1)Multi-reactive P2 P worms spreading together model is presented.Firstly,the worms which called reactive-P2P-worms are researched.Secondly,the models are built in coexistence and non-coexistence.In the situation of coexistence,we reviewed Waterfall Model.In another situation,there are three kinds of model have been discussed which are Straight Model,Right Angle Model and Gradual Model.Then,we respectively talk over the worms would not be overflowed in the models and analysis the stability of stable point when reaching the stable point.Last,we use stimulation to stimulate the trial and validate the model.In the experiment we consider the propagation parameters in the model,such as infection rate,download rate and the changing of the worms' effects on the propagation speed.(2)Multi-passive P2 P worms propagation model is proposed.First of all,depend on the condition of Multi-passive P2 P worms propagating,we separate the worms into two parts,one is coexistence and the other is non-coexistence.Next,the condition of the worms would not be overflowed has been discussed.Finally,we use stimulation to stimulated the trial and validated the model and considered the parameters how to work in the experiment.The simulations show that the infection rate,the contact rate and the sensitivity all play an important role during the propagation of multi-P2P-worms.In addition,by using data from the experiment,the propagation speed and the risk of worms are evaluated based on the propagation model.What's more,The experiments show that through decreasing the infection rate and contact rate is the most effective method toretain the propagation of worms,which is very helpful for anti-worms strategies.