22 Types of Malware and How to Recognize Them | UpGuard

This document is a comprehensive primer on malware covering definitions, 22 common malware types (including ransomware, worms, trojans, rootkits, spyware and fileless malware), common spread vectors (phishing, exploits, drive-by downloads, backdoors), detection/removal challenges, and prevention recommendations such as patching, monitoring, backups, and vendor risk management.