Here's the thing: for maybe the past week or so, I've been getting these strange pop-up ads in my browsers: http://imageshack.us/a/img526/149/reportme.png
At first, it was just browsers. Adblock on Google Chrome removed the ads themselves for me, leaving only the little "x". I looked at the web-element of these little buggers, and this is what it comes up as usually:
<div id="_rjkkvyjkph" style="z-index:9998;cursor:pointer;position:fixed !important;position:absolute;left:3px;bottom:3px;width:300px;height:265px;text-align:center;margin:0;overflow:hidden;vertical-align:top"><div style="background-image: url(http://www.google-analytics.com/img/close-btn.png);
background-color: transparent; height: 15px; display: block; background-position: 100% 0%; background-repeat: no-repeat no-repeat;"><div style="padding-top:15px;"><iframe frameborder="0" marginwidth="0" marginheight="0" scrolling="no" width="300" height="250" src="http://beinhome.com/entry.html"></iframe></div></div></div>
Now, just to clarify: I've been scanning the poop out of my computer for viruses, spyware, adware, malware, you name it. I've used both Spybot: Search and Destroy and Windows Security Essentials; doing multiple updates and full scans for either. A while back I got one major virus, but that was taken care of. Unfortunately, the ads haven't disappeared and if my picture is to say anything, it's that the Steam client (not just the in-game browser) is no exception to this problem.
So, to clarify: I have scanned (multiple times) for viruses. I have checked the windows Host file. I have checked add-ons and extensions for my browsers. I have checked my LAN connection settings. I have checked so much and it nothing seems to be the problem, yet apparently there is a problem.
So if anyone has any advice they would like to offer, I'm very well open to it.