(>O.O)> Owning for fun! <(O.O<)

So a few minutes ago, I got a random friendrequest from a guy named 'hidden', and I accepted it even though the profile was hidden because I know someone IRL who's username is usually 'hidden', Turns out it certainly wasn't my friend, here's the conversation:
19:25 - Hidden (2): hi
19:25 - Hidden (2): i have a good items for u
19:25 - [KMOA] Sheik: Uhh
19:25 - [KMOA] Sheik: Hello
19:25 - Hidden (2): need this item? http://screen4you.eu/jpg/89x73268j - screen
19:25 - Hidden (2): check screen, if u need this item i add u from my first acc

I typed 'Screen4you' into google, and apparently, it's a site that downloads a virus to your pc, you'll also lose an item if you propose one in a trade, and that virus makes you send that link to everyone in your friendlist...

( Here's a video: https://www.youtube.com/watch?v=YZqOFWsLSEY )
Screen4you is a FAKE site, so don't get caught! And even if you get the message from a friends, it's probably because they got caught themselves, so please, don't let it happen to you!