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Effective Mechanism for Blocking DNS Based Misbehaviours and Web Content Modification

International Journal of Computer Science (IJCS) Published by SK Research Group of Companies (SKRGC).

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Domain Name System (DNS) queries for botnet command and control provides a distributed infrastructure for storing, updating, and disseminating data that conveniently fits the need for a large-scale command and control system. The HTTP protocol is for the end-to-end communication between a client and a server. DNS provides not only a means of communication between computers, but also systematic mechanisms for naming, locating, distributing, and caching resources without tolerance. These features of DNS may be utilized to fullfill more effective command-and-control system than what HTTP servers may provide. The DNS server then responds with the appropriate data using the agreed upon semantics. We identify several groups of features that allow Disclosure to reliably distinguish C&C channels from benign traffic using Net Flow records to reduce Disclosure's false positive rate, we incorporate a number of external reputation scores into our system's detection procedure. We provide an extensive evaluation of Disclosure over two large, real-world networks. Our evaluation demonstrates that Disclosure is able to perform real-time detection of botnet C&C channels over datasets on the order of billions of flows per day. The DNS server is one of the primary and most vulnerable infrastructure components through which communications service providers suffer Denial of Service and Distributed Denial of Service attacks. Attackers, in particular botnet controllers, use stealthy messaging systems to set up large-scale command and control for web content defacing.


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Network security, DNS security, botnet detection, and command and control

  • Format Volume 2, Issue 1, No 4, 2014.
  • Copyright All Rights Reserved ©2014
  • Year of Publication 2014
  • Author K.Priyadharshini
  • Reference IJCS-048
  • Page No 273-277

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