Quick Heal Antivirus Software includes various features like Antispam, Anti Spyware, etc., and is extremely versatile ensuring virus protection. The Stuxnet malware is a sophisticated exploit of the simple flaw present in Windows Shell. This malware, disguised as a shortcut file (or in technical terms, a file with .LNK extension) uses USB-based removable drives, like pen drives, flash drives, portable hard drives, etc, as a medium to propagate, and infect the target systems.