MemTri: A Memory Forensics Triage Tool using Bayesian Network and Volatility : WestminsterResearch

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Title	MemTri: A Memory Forensics Triage Tool using Bayesian Network and Volatility
Authors	Michalas, A. and Murray, R.
Type	Conference paper
Abstract	This work explores the development of MemTri. A memory forensics triage tool that can assess the likelihood of criminal activity in a memory image, based on evidence data artefacts generated by several applications. Fictitious illegal suspect activity scenarios were performed on virtual machines to generate 60 test memory images for input into MemTri. Four categories of applications (i.e. Internet Browsers, Instant Messengers, FTP Client and Document Processors) are examined for data artefacts located through the use of regular expressions. These identified data artefacts are then analysed using a Bayesian Network, to assess the likelihood that a seized memory image contained evidence of illegal firearms trading activity. MemTri's normal mode of operation achieved a high artefact identification accuracy performance of 95.7% when the applications' processes were running. However, this fell significantly to 60% as applications processes' were terminated. To explore improving MemTri's accuracy performance, a second mode was developed, which achieved more stable results of around 80% accuracy, even after applications processes' were terminated.
Keywords	Digital Forensics
	Triage
	Cyber Crime
	Digital Evidence
	Random Access Memory
	Computer forensics
	Investigation techniques
	Evidence collection, storage and analysis
	System forensic
Year	2017
Conference	The 9th ACM CCS International Workshop on Managing Insider Security Threats (MIST’17) in Conjunction with ACM CCS 2017
Publisher	ACM
Accepted author manuscript	2017 - CCS - MemTri.pdf
Published	30 Oct 2017
Journal citation	pp. 57-66
Book title	Proceedings of the 2017 International Workshop on Managing Insider Security Threats
ISBN	9781450351775
Digital Object Identifier (DOI)	https://doi.org/10.1145/3139923.3139926

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MemTri: A Memory Forensics Triage Tool using Bayesian Network and Volatility

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