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A Characterization of Cybersecurity Posture from Network Telescope Data

  • Zhenxin Zhan
  • Maochao Xu
  • Shouhuai Xu
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9473)

Abstract

Data-driven understanding of cybersecurity posture is an important problem that has not been adequately explored. In this paper, we analyze some real data collected by CAIDA’s network telescope during the month of March 2013. We propose to formalize the concept of cybersecurity posture from the perspectives of three kinds of time series: the number of victims (i.e., telescope IP addresses that are attacked), the number of attackers that are observed by the telescope, and the number of attacks that are observed by the telescope. Characterizing cybersecurity posture therefore becomes investigating the phenomena and statistical properties exhibited by these time series, and explaining their cybersecurity meanings. For example, we propose the concept of sweep-time, and show that sweep-time should be modeled by stochastic process, rather than random variable. We report that the number of attackers (and attacks) from a certain country dominates the total number of attackers (and attacks) that are observed by the telescope. We also show that substantially smaller network telescopes might not be as useful as a large telescope.

Keywords

Cybersecurity data analytics Cybersecurity posture Network telescope Network blackhole Darknet Cyber attack sweep-time Time series data 

Notes

Acknowledgement

We thank CAIDA for sharing with us the data analyzed in the paper. This work was supported in part by ARO Grant #W911NF-13-1-0141 and NSF Grant #1111925.

Supplementary material

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.Department of Computer ScienceUniversity of Texas at San AntonioSan AntonioUSA
  2. 2.Department of MathematicsIllinois State UniversityNormalUSA

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