You are afraid of malware. You do not want to pay for a subscription. So you decide to download a antivirus (360 already has a free version, by the way) from a pirate website (Kuyhaa).

If you really want Kuyhaa, use it for something harmless, like WinRAR or a screensaver.

But here is the cold, hard truth:

Why? Because Kuyhaa offers the "Premium" or "Total Security" version with the license pre-cracked. You want the VIP protection for zero dollars.