The Quest for Multi-headed Worms

  • Authors:
  • Van-Hau Pham;Marc Dacier;Guillaume Urvoy-Keller;Taoufik En-Najjary

  • Affiliations:
  • Institut Eurecom, Sophia---Antipolis, France;Institut Eurecom, Sophia---Antipolis, France;Institut Eurecom, Sophia---Antipolis, France;Institut Eurecom, Sophia---Antipolis, France

  • Venue:
  • DIMVA '08 Proceedings of the 5th international conference on Detection of Intrusions and Malware, and Vulnerability Assessment
  • Year:
  • 2008

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Abstract

In [6], Pouget et al. have conjectured the existence of so-called multi-headed worms and found a couple of them on attack traces collected on a single honeypot. These worms take advantage of several distinct attack techniques to propagate but they use only one of them against a given target. From a victim's viewpoint, they are therefore indistinguishable from the other classical worms that always propagate using the same attack vector or same sequence of attack vectors. This paper aims at confirming the existence of these worms by studying a very large dataset. The validation process led to three important contributions. First, we establish the existence and assess the importance of three distinct classes of attacks seen in the wild. Second, we propose a new method to correlate attack traces time series and apply it to search for multi-headed worms. Third, we offer and discuss results of the analysis of 15 months of data gathered over 28 different platforms located all over the world.