The website Tech review is providing a link from which you can download a kaspersky Internet security with 470 keys. I don’t know about this file I haven’t downloaded it. So download this file at your own risk. Also i don’t think using a pirated software is not a good practice. If you don’t have enough money, you can use the free antivirus like AVG.

But this may help you if you want just a try, but for that also you can try the trial version of Kaspersky which is free for 1 Month

Anyway here is the link.