February 25, 2015

Browser Hijack

Just now I followed a link from BakaBT to ANN, and instead I got this address:


Which was a page that told me I was infected with some virus, and put up a popup advising me to call some phone number or other. (This is a common tack for malware: the people on the phone number will then tell me how to download a program that "fixes" the problem and also makes me part of their botnet.) Dismissing the popup made it appear again, meaning I couldn't close the tab. The only way to recover was to use the process manager to kill IE.

Obviously the first thing to do, which I just did, was to tell Windows Security Essentials to do a scan, and it didn't find anything.

The second thing was to clear the browser cache.

The third thing was to add "pc-okok.com" to the reject file in Proxomitron, so that I can't ever load it again. But I still want to know how my access was hijacked.

I'd also like to know how my browser found the site. "pc-okok.com" doesn't resolve through DNS, so what address is it?

UPDATE: Ah. The entire URL does resolve through DNS to, which is "a23-3-75-25.deploy.static.akamaitechnologies.com". Think I'll be sending them some email... UPDATE: Man, I think they don't want to hear from anyone. What a clumsy web interface, which I don't think worked.

The whole URL looked like this:



When that URL was created, someone did a reverse DNS on my IP in order to learn that I'm on Comcast Commercial. So I assume there was some other site in between, but the IE browser history doesn't show anything that makes any sense.

The only possibility I can see is that ANN's server has been corrupted.

UPDATE: Actually, I just remembered that this kind of thing has happened before, and it was a seedy advertiser coming in via a fairly respectable ad server.

Posted by: Steven Den Beste in Computers at 02:38 PM | Comments (2) | Add Comment
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Ben said (in the wrong thread):

This is apparently some new code for a classic attack; I've had two hijacks like this in the last two days after not having one for a year or so.

Posted by: Steven Den Beste at February 25, 2015 06:44 PM (+rSRq)

2 Yeah, pretty classic one to sneak into an ad-server.  
Reminds me of the only time I ever got a virus.  I was trying to diagnosis a problem on my sister's computer, and ended up hitting a similar link. (Was a Java exploit attack)  
And there's a reason I run Adblock Plus & Ghostery/Disconnect.  I have sympathy for the sites I visit, that it removes ad-revenue.  But not enough for exposing myself to potential attack.

Posted by: sqa at February 26, 2015 05:32 AM (pNJS8)

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