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type	http://eprints.org/ontology/ArticleEPrint http://eprints.org/ontology/ArticleEPrint http://eprints.org/ontology/EPrint http://eprints.org/ontology/EPrint Article Article Academic Article Academic Article
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Title	On the Effectiveness of Ransomware Decryption Tools On the Effectiveness of Ransomware Decryption Tools
described by	https://demo.openlinksw.com/about/id/entity/https/www.cs.kent.ac.uk/people/staff/akj22/materials/CO644/export_kar_RDFN3.n3 https://demo.openlinksw.com/about/id/entity/https/raw.githubusercontent.com/annajordanous/CO644Files/main/export_kar_RDFN3.n3
Date	2021-12 2021-12
Creator	Budi Arief Budi Arief Burak Filiz Burak Filiz J. Hernandez-Castro J. Hernandez-Castro Orcun Cetin Orcun Cetin
status	peer reviewed peer reviewed published published
Publisher	Elsevier Elsevier
abstract	Ransomware is a type of malware that locks out its victim’s access to their device or data – typically by encrypting files – and demands payment in exchange of restoring access. To fight the increasing threat posed by ransomware, security researchers and practitioners have developed decryption tools. These tools aim to help victims in recovering their data, generally by decrypting the compromised files without paying the ransom. Unfortunately, there has been minimal research on the effectiveness of decryption and recovery tools. There is a scant understanding regarding the extent to which these tools can actually recover compromised data. The research presented in this work aims to cover this gap by providing an empirical study on these tools’ effectiveness – in terms of decrypting and restoring compromised data. For doing so, we tested a total of 78 tools created by 11 security companies against 61 ransomware samples. That allows us to present an in-depth critical discussion of the real effectiveness of the recovery tools studied. We found that nearly half of the tools fail to recover compromised data satisfactorily. We conclude that there is still a lot of work to be done before these tools can make a real positive impact on ransomware victims. We finish our work by offering some additional insights and recommendations that could help in improving the effectiveness of ransomware decryption tools. Ransomware is a type of malware that locks out its victim’s access to their device or data – typically by encrypting files – and demands payment in exchange of restoring access. To fight the increasing threat posed by ransomware, security researchers and practitioners have developed decryption tools. These tools aim to help victims in recovering their data, generally by decrypting the compromised files without paying the ransom. Unfortunately, there has been minimal research on the effectiveness of decryption and recovery tools. There is a scant understanding regarding the extent to which these tools can actually recover compromised data. The research presented in this work aims to cover this gap by providing an empirical study on these tools’ effectiveness – in terms of decrypting and restoring compromised data. For doing so, we tested a total of 78 tools created by 11 security companies against 61 ransomware samples. That allows us to present an in-depth critical discussion of the real effectiveness of the recovery tools studied. We found that nearly half of the tools fail to recover compromised data satisfactorily. We conclude that there is still a lot of work to be done before these tools can make a real positive impact on ransomware victims. We finish our work by offering some additional insights and recommendations that could help in improving the effectiveness of ransomware decryption tools.
Is Part Of	Computers & Security Computers & Security https://kar.kent.ac.uk/id/repository https://kar.kent.ac.uk/id/repository
Subject	QA Mathematics (inc Computing science) QA Mathematics (inc Computing science)
list of authors	https://kar.kent.ac.uk/id/eprint/92302#authors https://kar.kent.ac.uk/id/eprint/92302#authors
volume	111 111
is topic of	https://www.cs.kent.ac.uk/people/staff/akj22/materials/CO644/export_kar_RDFN3.n3 https://raw.githubusercontent.com/annajordanous/CO644Files/main/export_kar_RDFN3.n3
is primary topic of	HTML Summary of #92302 On the Effectiveness of Ransomware Decryption Tools HTML Summary of #92302 On the Effectiveness of Ransomware Decryption Tools

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