IObit Malware Fighter Pro

IObit Malware Fighter is an advanced utility that detects and removes the deepest pc infections and protects your computer from various potential spyware, adware, trojans, keyloggers, worms and hijackers. It works quickly and efficiently thanks to an improved, unique "Dual-Core" engine and heuristic malware detection. The program offers a multilingual interface.

In addition, the Professional version offers:

• Comprehensive Real-Time Protection for High PC Security
• Prevention of virus infection via USB drive
• Detection of malicious process running in RAM
• Threat detection based on analysis of malicious action
• Runs in the background without interruption
• Automatic updates to the latest version

A more advanced version of Professional can be purchased here.