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Issue No. 05 - Sept.-Oct. (2012 vol. 9)
ISSN: 1545-5971
pp: 714-726
Roberto Perdisci , University of Georgia, Athens
Igino Corona , University of Cagliari, Cagliari
Giorgio Giacinto , University of Cagliari, Cagliari
In this paper, we present FluxBuster, a novel passive DNS traffic analysis system for detecting and tracking malicious flux networks. FluxBuster applies large-scale monitoring of DNS traffic traces generated by recursive DNS (RDNS) servers located in hundreds of different networks scattered across several different geographical locations. Unlike most previous work, our detection approach is not limited to the analysis of suspicious domain names extracted from spam emails or precompiled domain blacklists. Instead, FluxBuster is able to detect malicious flux service networks in-the-wild, i.e., as they are "accessed” by users who fall victim of malicious content, independently of how this malicious content was advertised. We performed a long-term evaluation of our system spanning a period of about five months. The experimental results show that FluxBuster is able to accurately detect malicious flux networks with a low false positive rate. Furthermore, we show that in many cases FluxBuster is able to detect malicious flux domains several days or even weeks before they appear in public domain blacklists.
IP networks, Electronic mail, Servers, Monitoring, Security, Indexes, Internet, Internet security., Flux networks, DNS, passive traffic analysis, clustering, classification

I. Corona, R. Perdisci and G. Giacinto, "Early Detection of Malicious Flux Networks via Large-Scale Passive DNS Traffic Analysis," in IEEE Transactions on Dependable and Secure Computing, vol. 9, no. , pp. 714-726, 2012.
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