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DNS Tunneling for Network Penetration

  • Daan Raman
  • Bjorn De Sutter
  • Bart Coppens
  • Stijn Volckaert
  • Koen De Bosschere
  • Pieter Danhieux
  • Erik Van Buggenhout
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7839)

Abstract

Most networks are connected to the Internet through firewalls to block attacks from the outside and to limit communication initiated from the inside. Because of the limited, supposedly safe functionality of the Domain Name System protocol, its traffic is by and large neglected by firewalls. The resulting possibility for setting up information channels through DNS tunnels is already known, but all existing implementations require help from insiders to set up the tunnels. This paper presents a new Metasploit module for integrated penetration testing of DNS tunnels and uses that module to evaluate the potential of DNS tunnels as communication channels set up through standard, existing exploits and supporting many different command-and-control malware modules.

Keywords

domain name system tunneling Metasploit network penetration 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Daan Raman
    • 1
  • Bjorn De Sutter
    • 1
  • Bart Coppens
    • 1
  • Stijn Volckaert
    • 1
  • Koen De Bosschere
    • 1
  • Pieter Danhieux
    • 2
  • Erik Van Buggenhout
    • 2
  1. 1.Computer Systems LabGhent UniversityBelgium
  2. 2.ITRA FSOErnst & YoungBelgium

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