Threat Level: green Handler on Duty: Rob VandenBrink

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More SQL Injection with Fast Flux hosting

Published: 2008-06-30
Last Updated: 2008-07-01 04:46:52 UTC
by Robert Danford (Version: 5)
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One of our readers, Elazar, send us some very good analysis of a SQL injection attack.  A summary of his findings are below.  We really appreciate it when readers observe an event, apply some noodle, then send in the analysis.  Thanks Elazar!

Looks like another hit, within the last week or so. More fast flux domains redirecting to other domains which then redirect to the malware site. What's interesting about this one is it doesn't look like they are using exploits to install the malware, they are redirecting to a fake AV site which fools users into installing the malware. Some of the domains hosting the injected js are as follows:

hxxp://updatead.com
hxxp://upgradead.com
hxxp://clsiduser.com
hxxp://dbdomaine.com

b.js then redirects to several domains which host a cgi script

hxxp://kadport.com/cgi-bin/indes.cgi?ad
hxxp://hdadwcd.com/cgi-bin/index.cgi?ad 

Which then redirects to ad.js which redirects the user to
hxxp://spyware-quick-scan.com?wmid=1041&I=14&it=1&s=4t 

This site attempts to trick the user into installing installer.exe

AV coverage is decent:

http://www.virustotal.com/analisis/92b4fc4e4d3551ef4945cbff173e67d8

UPDATE (thanks again Elazar!)

This post has a nice running list of domains: http://infosec20.blogspot.com/2008/06/asprox-sql-injection-botnet-and-iframe.html

The cause seems to be the ASPROX bot kit, which got some SQL injection capabilities in mid-May, see http://www.heise-online.co.uk/security/Asprox-botnet-now-equipped-with-SQL-injection-tool--/news/110742.

Dr. Ulrich's post http://isc.sans.org/diary.html?storyid=4565 lays out very nicely how it all happens...

The folks at ShadowServer are keeping a comprehensive and updated list at:

http://www.shadowserver.org/wiki/pmwiki.php?n=Calendar.20080514

Marcus H. Sachs
Director, SANS Internet Storm Center

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