A Comparative Evaluation of Malware Families and Machine-Learning Detection Techniques, and an Optimized Stacked-Ensemble Model for Predicting Software Maliciousness
Malware is growing fast in volume, variety, and sophistication, and traditional signature-based defences can no longer keep up. This has driven a shift toward machine-learning (ML) based detection. This paper has two main goals. First, it compares the major malware families - viruses, worms, trojans, ransomware, spyware, adware, rootkits, botnet clients, and polymorphic/metamorphic variants - looking at how each spreads and what damage it causes. It also surveys the intelligent algorithms behind modern ML-based malware detection (probabilistic, ensemble, kernel-based, and deep-sequential models), and works on three gaps in the existing literature: a disconnect between surveys and reproducible benchmarks, limited joint attention to accuracy, efficiency, and robustness together, and under-explored heterogeneous stacking for static malware detection. Second, building on this analysis, the paper designs and tests an efficient stacked-ensemble model that estimates how likely a given executable is to be malicious. Using the ClaMP static PE-header benchmark (5,184 labelled Windows executables, 55 raw features), ten baseline classifiers are benchmarked first. An embedded feature-selection step (Random Forest Gini importance) then cuts the feature space by about 49% before training a four-member ensemble - Random Forest, XGBoost, a Multilayer Perceptron, and Gradient Boosting - combined through a logistic-regression meta-learner. Proposed model in this research performs 98.14% accuracy, 98.20% F1 score and an AUC of 0.998 on given data, it uses five fold cross validation accuracy, our results are compared against recent malware research/types are identified for future research work/area.