KingDefender Antivirus 2011 - Version 1.2.0.240 KingDefender Anitivirus is a new, powerful way to protect your PC from malware attacks. We don't rely on virus signature updates and file scanning like the traditional anti-virus programs do. Our unique technology detects when malware runs on your computer, and we shut it down - before it can steal your identity or hurt your computer. KingDefender eliminates threats from keyloggers, trojans, spyware, and more.