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Using Attack Graphs in Forensic Examinations

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3 Author(s)
Changwei Liu ; Dept. of Comput. Sci., George Mason Univ., Fairfax, VA, USA ; Singhal, A. ; Wijesekera, D.

Attack graphs are used to compute potential attackpaths from a system configuration and known vulnerabilities of asystem. Attack graphs can be used to eliminate knownvulnerability sequences that can be eliminated to make attacksdifficult and help forensic examiners in identifying manypotential attack paths. After an attack happens, forensic analysis, including linking evidence with attacks, helps further understandand refine the attack scenario that was launched. Given thatthere are anti-forensic tools that can obfuscate, minimize oreliminate attack footprints, forensic analysis becomes harder. Asa solution, we propose to apply attack graph to forensic analysis. We do so by including anti-forensic capabilities into attackgraphs, so that the missing evidence can be explained by usinglonger attack paths that erase potential evidence. We show thiscapability in an explicit case study involving a database attack.

Published in:

Availability, Reliability and Security (ARES), 2012 Seventh International Conference on

Date of Conference:

20-24 Aug. 2012