Differential area analysis for ransomware attack detection within mixed file datasets

نویسندگان

چکیده

The threat from ransomware continues to grow both in the number of affected victims as well cost incurred by people and organisations impacted a successful attack. In majority cases, once victim has been attacked there remain only two courses action open them; either pay ransom or lose their data. One common behaviour shared between all crypto strains is that at some point during execution they will attempt encrypt users' files. Previous research Penrose et al. (2013); Zhao (2011) highlighted difficulty differentiating compressed encrypted files using Shannon entropy file types exhibit similar values. experiments described this paper shows unique characteristic for header fragments. This was used differentiate other high such archives. discovery leveraged development classification model differential area curve under analysis one generated random When comparing plot values against containing purely numbers, greater correlation plots is, higher confidence contains

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ژورنال

عنوان ژورنال: Computers & Security

سال: 2021

ISSN: ['0167-4048', '1872-6208']

DOI: https://doi.org/10.1016/j.cose.2021.102377