It would appear to be a firewall feature? (More curious than lazy today
)
From Kaspersky website:
"Kaspersky Internet Security 6.0 is a fully integrated security solution that combines reactive detection methods with the latest proactive technologies, protecting your PC from viruses, hacker attacks, spam and spyware. Seamless integration of all product components (including a personal firewall) eliminates system conflicts and provides fast performance."
edit: added website info