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Overview:

Today's Internet is open and anonymous. While it permits free traffic from any host, attackers that generate malicious traffic cannot typically be held accountable. This paper, presents a system called HostTracker that tracks dynamic bindings between hosts and IP addresses by leveraging application-level data with unreliable IDs. Using a month-long user login trace from a large email provider, the paper shows that HostTracker can attribute most of the activities reliably to the responsible hosts, despite the existence of dynamic IP addresses, proxies, and NATs. With this information, one is able to analyze the host population, to conduct forensic analysis, and also to blacklist malicious hosts dynamically.

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Format:PDFSize:625 KB
Date:Aug 2009
Pages:12

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