Lovena is an Internet worm that propagates in many ways. Once executed, the parasite secretly installs itself to the system and starts a spreading routine. It sends out e-mail messages with infected files attached. It also uses the Kazaa peer-to-peer application to share infected files with users of file sharing networks. Furthermore, the worm copies itself to several locations on the compromised computer. Lovena’s payload is large. The parasite disables essential system tools including Registry Editor, Task Manager and Command Prompt, turns off System Restore, modifies system settings and changes the Internet Explorer home page. The worm terminates running antiviruses, security-related software and system utilities. It also minimizes windows and kills processes of different programs, both legitimate and malicious. Lovena runs on every Windows startup. It even starts in Safe Mode.