Regarding "free", I should clarify that Kaspersky Internet Security 2013 is not a free product. It's a paid security software that requires a license or subscription to use. However, Kaspersky does offer a free trial version that can be used for a limited time.
A then-new module designed to block threats targeting vulnerabilities in legitimate software (zero-day exploits). free kaspersky internet security 2013
You're looking for a feature of Kaspersky Internet Security 2013. Regarding "free", I should clarify that Kaspersky Internet