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Leveraging Support Vector Machine for Opcode Density Based Detection of Crypto-Ransomware

07/27/2018
by   James Baldwin, et al.
0

Ransomware is a significant global threat, with easy deployment due to the prevalent ransomware-as-a-service model. Machine learning algorithms incorporating the use of opcode characteristics and Support Vector Machine have been demonstrated to be a successful method for general malware detection. This research focuses on crypto-ransomware and uses static analysis of malicious and benign Portable Executable files to extract 443 opcodes across all samples, representing them as density histograms within the dataset. Using the SMO classifier and PUK kernel in the WEKA machine learning toolset it demonstrates that this methodology can achieve 100 ransomware and goodware, and 96.5 cryptoransomware families and goodware. Moreover, 8 different attribute selection methods are evaluated to achieve significant feature reduction. Using the CorrelationAttributeEval method close to 100 with a feature reduction of 59.5 feature reduction of 97.7

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