Guys..

Don't click these links called "WTF DUDE?" followed by a link to a supposed image hosting website ending by "img-12".

If you click it you will get a virus on your computer that will spread it around and send the same kind of messages to other people on Steam (all your friends).

So once again, do not click these links.

Solution to get rid of this virus:

1. Delete img-12 from your downloads folder
2. Go to your processes in task manager and close down any suspicious process you may encounter (such as img-12)
3. Use any of the following virus/malware scanners or a combination of them: Norton, McAfee, AVG and Malwarebytes
4. Search through the files on your pc for names such as "img", "img12", "img-12" and "img_12" and delete any of these files that you may find
5. Reproduce steps or run a Windows system repair if you're still encountering this problem