Whenever you use the Internet, the information stored on your computer becomes subject to the risk of infection from dangerous programs. These can infiltrate your computer while you are downloading free software, or browsing known safe websites, which have been subject to hacker attacks before you have gone on them. Moreover, network worms can penetrate your computer before you open a webpage or download a file just because your computer is connected to the Internet.
The Web Anti-Virus component is designed to ensure security while using the Internet. It protects your computer against data coming in via the HTTP and HTTPS protocols, and also prevents dangerous scripts from being executed on the computer.
Web protection monitors the data stream that passes only through the ports included in the monitored port list. A list of ports that are most commonly used for data transfer is included in the Kaspersky Internet Security installation package. If you use any ports that are not included in this list, add them into the list of monitored ports to ensure protection of data streams being directed via them.
Kaspersky Lab advises you not to configure Web Anti-Virus settings on your own. In most cases, it is enough to select an appropriate security level.
Component operation algorithm
Web Anti-Virus protects the data reaching your computer and transferred from it over HTTP and HTTPS, and prevents hazardous scripts from running on the computer. By default, scanning is disabled for secure connections (via HTTPS), you can enable and configure it.
A small computer program or an independent part of a program (function) which, as a rule, has been developed to execute a small specific task. It is most often used with programs embedded into hypertext. Scripts are run, for example, when you open a certain website.
If real-time protection is enabled, the application tracks the scripts launching, intercepts and scans them for viruses. Depending on the results of the scan, you may block or allow the execution of a script.
Data is protected using the following algorithm:
Scripts are scanned according to the following algorithm:
Web Anti-Virus intercepts only scripts using the Microsoft Windows Script Host functionality.