Malware Detection using Classification of Variable-Length Sequences

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HOSSEINI FATEMEH; Mirzarezaee Mitra; SHARIFI ARASH

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Journal: SIGNAL AND DATA PROCESSING Year:2019 | Volume:16 | Issue:2 (40) Page(s): 137-146

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Title

Malware Detection using Classification of Variable-Length Sequences

Author(s)

HOSSEINI FATEMEH | Mirzarezaee Mitra | SHARIFI ARASH | Issue Writer Certificate

Keywords

Malware DetectionQ1

Graph TechniquesQ1

Combining ClassifiersQ2

Variable Length ClassificationQ1

Support vector machineQ2

Abstract

In this paper, a novel method based on the graph is proposed to classify the sequence of variable length as feature extraction. The proposed method overcomes the problems of the traditional graph with variable length of data, without fixing length of sequences, by determining the most frequent instructions and insertion the rest of instructions on the set of “ other” , save speed and memory. According to features and the similarities of them, a score is given to each sample and that is used for classification. To improve the results, the method is not used alone, but in the two approaches, this method is combined with other existing Technique to get better results. In the first approach, which can be considered as a feature extraction, extracted features from scoring techniques (Hidden Markov Model, simple substitution distance and similarity graph) on op-code sequences, hexadecimal sequences and system calls are combined at classifier input. The second approach consists of two steps, in the first step; the scores which obtained from each of the scoring Technique are given to the three Support vector machine. The outcomes are combined according to the weight of each Technique and the final decision is taken based on the majority vote. Among the components of the Support vector machine, when given a higher weight in the similarity graph method (the proposed method), the result is better, Because the similarity graph method is more accurate than the other two methods. Then, in the second section, considering the strengths and benefits of each classifier, classifier outputs are combined and the majority voting is used. Three methods have been tested for group combinations, including Ensemble Averaging, Bagging, and Boosting. Ensemble Averaging consisting of the combination of four classifiers of random forests, a Support vector machine (as obtained in the previous section), K nearest neighbors and naive Bayes, and the final decision is taken based on the majority vote; therefore, it is used as the proposed method. The proposed approach could detect metamorphic malware from Vxheaven set and also determines categories of malware with accuracy of 97%, while the SSD and HMM methods under the same conditions could detect malware with an accuracy of 84% and 80% respectively.

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APA: Copy

HOSSEINI, FATEMEH, Mirzarezaee, Mitra, & SHARIFI, ARASH. (2019). Malware Detection using Classification of Variable-Length Sequences. SIGNAL AND DATA PROCESSING, 16(2 (40) ), 137-146. SID. https://sid.ir/paper/160876/en

Vancouver: Copy

HOSSEINI FATEMEH, Mirzarezaee Mitra, SHARIFI ARASH. Malware Detection using Classification of Variable-Length Sequences. SIGNAL AND DATA PROCESSING[Internet]. 2019;16(2 (40) ):137-146. Available from: https://sid.ir/paper/160876/en

IEEE: Copy

FATEMEH HOSSEINI, Mitra Mirzarezaee, and ARASH SHARIFI, “Malware Detection using Classification of Variable-Length Sequences,” SIGNAL AND DATA PROCESSING, vol. 16, no. 2 (40) , pp. 137–146, 2019, [Online]. Available: https://sid.ir/paper/160876/en

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