Kaspersky Anti-Virus features include real-time protection, detection and removal of virusus, trojans, worms, spyware, adware, keyloggers, malicious tools and auto-dialers, as well as detection and removal of rootkits. It also includes instantaneous automatic updates via the "Kaspersky Security Network" service.
According to Kaspersky, "Kaspersky Security Network" service allows users of Kaspersky Lab security products from around the world to help facilitate malware identification and reduce the time it takes to provide protection against new (“in the wild”) security risks targeting your computer.
Microsoft Windows users may download an antivirus rescue disk that scans the host computer during booting inside an isolated Linux environment. In addition, Kaspersky Anti-Virus prevents itself from being disabled by malware without user permission via password access prompts upon disabling protection elements and changing internal settings. It also scans incoming instant messenger traffic, email traffic, automatically disables links to known malware hosting sites while using Internet Explorer or Firefox, and includes free technical support and free product upgrades within paid-subscription periods.