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Analysis of a Scanning Model of Worm Propagation

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Executive Summary

The traditional approach to modeling of internet worm propagation is to adopt a mathematical model, usually inspired by modeling of the spread of infectious diseases, describing the expected number of hosts infected as a function of the time since the start of infection. The predictions of such a model are then used to evaluate, improve, or develop defense and containment strategies against worms. However, a proper and complete understanding of worm propagation goes well beyond the mathematical formula given by the chosen model for the expected number of hosts infected at a given time.

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