Secure instant messaging in enterprise-like networks

  • Authors:
  • Mengjun Xie;Zhenyu Wu;Haining Wang

  • Affiliations:
  • Computer Science Department, University of Arkansas at Little Rock, Little Rock, AR 72204, United States;Computer Science Department, College of William and Mary, Williamsburg, VA 23185, United States;Computer Science Department, College of William and Mary, Williamsburg, VA 23185, United States

  • Venue:
  • Computer Networks: The International Journal of Computer and Telecommunications Networking
  • Year:
  • 2012

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Abstract

Instant messaging (IM) has been one of most frequently used malware attack vectors due to its popularity. However, previous solutions are ineffective to defend against IM malware in an enterprise-like network environment, mainly because of high false positive rate and the requirement of the IM server being inside the protected network. In this paper, we propose a novel IM malware detection and suppression mechanism, HoneyIM, which guarantees almost zero false positive on detecting and blocking IM malware in an enterprise-like network. The detection of HoneyIM is based on the concept of honeypot. HoneyIM uses decoy accounts to trap IM malware by leveraging malware spreading characteristics. Fed with accurate detection results, the suppression of HoneyIM can conduct a network-wide blocking. In addition, HoneyIM delivers attack information to network administrators in real-time so that system quarantine and recovery can be quickly performed. The core design of HoneyIM is generic, and can be applied to the scenarios that either enterprise IM services or public IM services are used in the protected network. Based on open-source IM client Pidgin and client honeypot Capture, we build a prototype of HoneyIM and validate its efficacy through both simulations and real experiments. Our results show that HoneyIM provides effective protection against IM malware in enterprise-like networks.