[IP] compromised ad servers?
I got piles and piles of that djf
Begin forwarded message:
From: Dave Wilson <dave@xxxxxxxxxx>
Date: August 25, 2005 6:59:40 PM EDT
To: dave@xxxxxxxxxx
Subject: compromised ad servers?
I visited a mainstream Web site Wednesday and an infected ad server
apparently pushed down a bit of malware, asdf.exe. The file was
extremely small -- less than 1.6 K -- and appeared to be trying to
install some more complex bit of malware, presumably a keylogger.
What fascinated me was that this occured on a box with all standard
security measures in place: Windows XP system (all critical patches
installed) using Mozilla Firefox 1.0.6 (latest version, "Allow Web
sites to install software" unchecked) and running Norton Antivirus
and Norton Firewall, also current and updated. Norton AV didn't even
recognize this thing as malovolent; I noticed it after it was inside
at c:\asdf.exe clawing frantically at my firewall trying to get back
out.. Even more amusing, I didn't actually do anything: Didn't click
on an advertisement, close a Windows, etc. One Web site that was
apparently serving up infected ads was The Onion (London's Observer
had a simlar problem last year). Because this malware is passed along
through a compromised ad server, not every visitor will get hit,
since the ads rotate each time the page is called up.
Anyway, I've contacted AV vendors, but I'm worried about how
widespread this problem is. Google searchers turn up people puzzling
similar incidents starting three weeks ago. I'm wondering if IPers
can do a file search for "asdf.exe" and report back positive results?
Thanks
-dave
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