WinDroid: A Novel Framework for Windows and Android Malware Family Classification Using Hierarchical Ensemble Support Vector Machines With Multiview Handcrafted and Deep Learning Features

The rapid growth and diversification of malware variants, driven by advanced code obfuscation, evasion, and antianalysis techniques, present a significant threat to cybersecurity. The inadequacy of traditional methods in accurately classifying these evolving threats highlights the need for effective and robust malware classification techniques. This article presents WinDroid, a novel visualization‐based framework for Windows and Android malware family (AMF) classification using hybrid features and hierarchical ensemble learning. The WinDroid system employs a multistage approach to malware classification, transforming binaries into Markov grayscale images, enhanced via contrast‐limited‐adaptive‐histogram‐equalization and gamma correction. Deep learning and handcrafted features are extracted and fuzed using graph attention networks (GATs), feeding into hierarchical support vector machines (SVMs) for accurate family classification. This framework effectively reduces information loss, enhances computational efficiency, and demonstrates outstanding performance. WinDroid delivers excellent results, achieving 99.53% accuracy on Windows and 99.65% on AMF classification, along with Cohen’s kappa coefficients of 99.01% and 99.28%, respectively, and outperforming state‐of‐the‐art baseline methods.