Security

Stormy Weather: A Quantitative Assessment of the Storm Web Threat in 2007

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Executive Summary

The mixed web threat known as Storm is widely acknowledged as the most significant digital security event of 2007. Storm combines the global epidemic aspects of traditional viruses and worms with the stealth and economic activity of today's massive botnets. Historically, malware outbreaks have been fast-spreading, single-purposed and soon over. Storm continued to spread for many months in successive bursts using different techniques. It sustained its potency by recruiting hundreds of thousands of infected computers into a gigantic botnet. Its purpose appears to be a service-for-hire for multiple fraudulent web activities. Storm provides a first opportunity for quantitative analysis of what may prove to be a new generation of intensive malware outbreaks.

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