An E-Epidemic Model for Developing a Defense Mechanism against Computer Worms

We have developed a defense mechanism for worms free computer network. The trusted hosts are peer to peer connected but gateways, firewalls, routers and trusted hosts are hierarchically related with each other. For worms free computer network, we have developed a mathematical model in which different computer network devices like Gateways, Firewalls, and Routers etc are used as parameters. The concept of trusted hosts have been used to help routers and firewalls for transmission of alarming signals. To detect and filtrate the worms, firewall and routers are used. The gateways have been used to connect the different type of LAN. Some host may not have alarming message, so that hosts may be either infected or completely free from worms. Further some infected hosts have been filtered by single level hierarchical back off dynamic mechanism. Finally heavily attacked worms related host have to quarantine. In all type of hosts, the concept of natural death has been used.