Kaspersky Internet Security 2009 incorporates an application activity filtration module that makes use of HIPS (Host-based Intrusion Prevention System) technology together with a proactive defense module and an integrated firewall. These protect the system against both known and unknown threats. Additionally, a white-list feature for trusted applications significantly reduces the need for user interaction. All unknown applications are subjected to analysis; the application is then assigned a security rating based on the risk it presents. The rating assigned to an unknown application determines the level of access it has to operating system resources, network resources, confidential user data, system privileges and removable devices. This means that even if an application is malicious, the system will be protected from infection as the program will be unable to deliver its payload.

The new Security Analysis and Browser Setting features scan the operating system and applications for vulnerabilities, and provide options to enhance system security and significantly reduce the likelihood of a malicious program penetrating the computer.

Kaspersky Internet Security 2009 also includes a virtual keyboard that enables users to enter logins and passwords safely. Moreover, Kaspersky Internet Security 2009 prevents the theft of data transferred via secure connections (HTTPS, SSL) and can remove all traces of a user's Internet activity (temporary files, cookies, etc.).

The components included in earlier product versions, such as the firewall, heuristic analyzer, parental control module and anti-spam module have all been enhanced and upgraded. Kaspersky Anti-Virus 2009 is developed in line with the system requirements for Windows Vista and are fully compatible with 32-bit and 64-bit versions of the operating system. The MRP for the product is Rs. 990.00 (US$21).