Traffic dispersion graph based anomaly detection

  • Authors:
  • Do Quoc Le;Taeyoel Jeong;H. Eduardo Roman;James Won-Ki Hong

  • Affiliations:
  • Pohang University of Science and Technology (POSTECH), Korea;Pohang University of Science and Technology (POSTECH), Korea;Pohang University of Science and Technology (POSTECH), Korea;Pohang University of Science and Technology (POSTECH), Korea

  • Venue:
  • Proceedings of the Second Symposium on Information and Communication Technology
  • Year:
  • 2011

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Abstract

Detecting and diagnosing anomalous traffic are important aspects of managing IP networks. In this paper, we propose a novel approach to detect anomalous network traffic based on graph theory concepts such as degree distribution, maximum degree and dK-2 distance. In this approach, we have used the traffic dispersion graphs (TDG) to model network traffic over time. We analyze differences of TDG graphs in time series to detect anomalies and introduce a method to identify attack patterns in anomalous traffic. The approach has been validated by using network traces from POSTECH and CAIDA.