A Natural Language Processing Approach to Malware Classification

Ritik Mehta, Olha Jurečková, Mark Stamp
7/7/2023
cs.CRcs.LG

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Abstract

Many different machine learning and deep learning techniques have been successfully employed for malware detection and classification. Examples of popular learning techniques in the malware domain include Hidden Markov Models (HMM), Random Forests (RF), Convolutional Neural Networks (CNN), Support Vector Machines (SVM), and Recurrent Neural Networks (RNN) such as Long Short-Term Memory (LSTM) networks. In this research, we consider a hybrid architecture, where HMMs are trained on opcode sequences, and the resulting hidden states of these trained HMMs are used as feature vectors in various classifiers. In this context, extracting the HMM hidden state sequences can be viewed as a form of feature engineering that is somewhat analogous to techniques that are commonly employed in Natural Language Processing (NLP). We find that this NLP-based approach outperforms other popular techniques on a challenging malware dataset, with an HMM-Random Forrest model yielding the best results.

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Cite this paper

@article{mehta2023natural,
  title  = {A Natural Language Processing Approach to Malware Classification},
  author = {Ritik Mehta and Olha Jurečková and Mark Stamp},
  year   = {2023},
  eprint = {2307.11032},
  archivePrefix = {arXiv},
  url    = {http://arxiv.org/abs/2307.11032v1}
}

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