Distributed Worm Simulation with a Realistic Internet Model

摘要: Internet worm spread is a phenomenon involving millions of hosts, who interact in complex and diverse environment. Scanning speed each infected host depends on its resources the defenses at work network. Aggressive worms further with underlying topology .. dynamics constrained by limited bandwidth network links, high-volume scan traffic leads to BGP router failure thus affecting global routing. Worm also interacts legitimate background competing for (and often winning) resources. To faithfully simulate other Internet-wide events such as DDoS, flash crowds spam we need detailed model, packet-level simulation relevant event features, realistic model whole Internet. The memory CPU requirements exceed single machineýs resources, creating distributed simulation. We propose design present implementation simulator, called PAWS. PAWS runs Emulab testbed, which facilitates use researchers. validate variety scenarios, evaluate costs benefits