Be Careful of 'WTF?' Malware on Steam Chat

[[Coi] Mr.CLuBBeR]

As always, be suspicious of links in your Steam chat sessions

Hopefully you're getting to spend a bit of time in Steam over the holiday season, catching up on a treasure trove of games that you picked up on discount through various sales. While you're navigating Steam, however, be advised that there's a piece of malware spreading through Steam chat sessions. Messages on Steam chat saying "WTF?????" seem to link to a JPEG file, but it's really a malicious executable.
If you click on the link, you'll end up downloading a .SCR file filled with malicious code. So, unless your chat buddies have a history of saying "WTF?????" followed by links to goofy pics, go ahead and assume they've been infected and that the message is a bogus one. Either way, play it safe and don't click.
According to security blogger Graham Cluley, uploading the infected file to VirusTotal shows that only a small number of antivirus products detect it as known malware. That doesn't mean your AV solution won't catch it through another means, like heuristic scanning, but do yourself a solid by avoiding it altogether.
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