A Low Computational Cost Method for Mobile Malware Detection Using Transfer Learning and Familial Classification Using Topic Modelling

Table 12

Topic words extracted using LDA and hierarchical clustering.

Topic content	LDA clustering	Hierarchical clustering
Android Ransomware detected in 2020 were mostly themed on COVID-19	Malware, security, threat, and specific	Attack, ransomware, malware, security, and malicious
Novel system update virus hides itself in victim’s phone	Virus, security, attack, charge, and music	Spyware, malware, attack, security, system, virus, and version
Mobile trojans can access critical permissions	Threat, virus, charge, target, and mobile	Trojan, detection, virus, device, and permissions
DDoS attacks are able to control device resources	Virus, attack, device, and news	Virus, malware, device, attack, and resources