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R&D: SSD Assisted Ransomware Detection and Data Recovery Techniques

Experimental results show that SSD-Insider++ achieves high accuracy of detecting ransomwares with 0% FRR/FAR in most cases and provides instant data recovery with 0% data loss.

IEEE Transactions on Computers has published an article written by Sungha Baek, Inha University, Incheon, Republic of Korea, Youngdon Jung, Department of Information and Communication Engineering, Daegu Institute of Science and Technology, Daegu, Republic of Korea, David Mohaisen, University of Central Florida, Orlando, FL, USA, Sungjin Lee, Department of Information and Communication Engineering, Daegu Institute of Science and Technology, Daegu, Republic of Korea, DaeHun Nyang, Cyber Security Department, Ewha Womans University 52, Seoul, Republic of Korea.

Ssd Assisted Ransomware Detection And Data Recovery Techniques Tc Gagraphic 3011214

Abstract: “As ransomware attacks have been prevalent, it becomes crucial to make anti-ransomware solutions that defend against ransomwares. In this article, we propose a new ransomware defense system, called SSD-Insider++ , which prevents users’ files from being damaged by ransomware attacks. SSD-Insider++ is embedded into an SSD controller as a form of firmware. By being separated from a host machine, it not only provides more robust data protection than software-based ones which are vulnerable to evasion attacks, but also offers interoperability with various platforms. SSD-Insider++ is composed of two novel features, ransomware detection and perfect data recovery, which are tightly integrated with each other. The detection algorithm observes I/O patterns of a host system and decides whether the host is being attacked by ransomwares in an early stage. Once an encryption attack is detected, the recovery algorithm is triggered to recover original files by leveraging a delayed deletion feature of an SSD at a low cost. Our experimental results show that SSD-Insider++ achieves high accuracy of detecting ransomwares with 0 percent FRR/FAR in most cases and provides an instant data recovery with 0 percent data loss. The overhead of running SSD-Insider++ is negligible – only 80n s and 226n s are spent more for handling 4-KB reads and writes, respectively.

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