- Downloader: Download other malwares
- Dropper: Drop other malwares
- Injector: Inject its code into other process(the injected process usually not malicious), let the injected process do something evil
- InfoStealer: Steal users’ privacy infomation, such as card number, username & password, cookies, etc
- Ransomware: Encrypt users’ personal files, then ask for some money to decrypt.[How to avoid ransomware infected your computer?]