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Future Internet 2016, 8(4), 54; doi:10.3390/fi8040054

Network Forensics Method Based on Evidence Graph and Vulnerability Reasoning

1
Faculty of Information Technology & Beijing Engineering Research Center for IoT Software and Systems, Beijing University of Technology, Beijing 100124, China
2
College of Computer and Information Technology, China Three Gorges University, Yichang 443002, China
*
Authors to whom correspondence should be addressed.
Academic Editors: Jiankun Hu and Dino Giuli
Received: 14 August 2016 / Revised: 15 October 2016 / Accepted: 18 October 2016 / Published: 10 November 2016
(This article belongs to the Special Issue Cyber Warfare)
View Full-Text   |   Download PDF [2583 KB, uploaded 10 November 2016]   |  

Abstract

As the Internet becomes larger in scale, more complex in structure and more diversified in traffic, the number of crimes that utilize computer technologies is also increasing at a phenomenal rate. To react to the increasing number of computer crimes, the field of computer and network forensics has emerged. The general purpose of network forensics is to find malicious users or activities by gathering and dissecting firm evidences about computer crimes, e.g., hacking. However, due to the large volume of Internet traffic, not all the traffic captured and analyzed is valuable for investigation or confirmation. After analyzing some existing network forensics methods to identify common shortcomings, we propose in this paper a new network forensics method that uses a combination of network vulnerability and network evidence graph. In our proposed method, we use vulnerability evidence and reasoning algorithm to reconstruct attack scenarios and then backtrack the network packets to find the original evidences. Our proposed method can reconstruct attack scenarios effectively and then identify multi-staged attacks through evidential reasoning. Results of experiments show that the evidence graph constructed using our method is more complete and credible while possessing the reasoning capability. View Full-Text
Keywords: network forensics; evidence graph; vulnerability reasoning; vulnerability evidence reasoning algorithm network forensics; evidence graph; vulnerability reasoning; vulnerability evidence reasoning algorithm
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

He, J.; Chang, C.; He, P.; Pathan, M.S. Network Forensics Method Based on Evidence Graph and Vulnerability Reasoning. Future Internet 2016, 8, 54.

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