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Re: DNS poisoning at Google?

From: Ishmael Rufus <sakamura () gmail com>
Date: Wed, 27 Jun 2012 00:13:58 -0500
Invoking the referrer on your site recommends a redirect to couchtarts. I
agree with Jeremy and Jeff check your htaccess files, conf files and
anything that  calls RewriteCond or Rewrite

On Wed, Jun 27, 2012 at 12:05 AM, Matthew Black <Matthew.Black () csulb edu>wrote:


Google Webtools reports a problem with our HOMEPAGE "/". That page is not
redirecting anywhere.
They also report problems with some 48 other primary sites, none of which
redirect to the offending couchtarts.

matthew black
information technology services
california state university, long beach





-----Original Message-----
From: Jeremy Hanmer [mailto:jeremy.hanmer () dreamhost com]
Sent: Tuesday, June 26, 2012 9:58 PM
To: Matthew Black
Cc: nanog () nanog org
Subject: Re: DNS poisoning at Google?

It's not DNS.  If you're sure there's no htaccess files in place, check
your content (even that stored in a database) for anything that might be
altering data based on referrer.  This simple test shows what I mean:

Airy:~ user$ curl -e 'http://google.com&apos; csulb.edu <!DOCTYPE HTML PUBLIC
"-//IETF//DTD HTML 2.0//EN"> <html><head>
<title>301 Moved Permanently</title>
</head><body>
<h1>Moved Permanently</h1>
<p>The document has moved <a href="http://www.couchtarts.com/media.php
">here</a>.</p>
</body></html>

Running curl without the -e argument gives the proper site contents.

On Jun 26, 2012, at 9:24 PM, Matthew Black <Matthew.Black () csulb edu>
wrote:


Running Apache on three Solaris webservers behind a load balancer. No MS

Windows!


Not sure how malicious software could get between our load balancer and

Unix servers. Thanks for the tip!


matthew black
information technology services
california state university, long beach



From: Landon Stewart [mailto:lstewart () superb net]
Sent: Tuesday, June 26, 2012 9:07 PM
To: Matthew Black
Cc: nanog () nanog org
Subject: Re: DNS poisoning at Google?

Is it possible that some malicious software is listening and injecting a

redirect on the wire?  We've seen this before with a Windows machine being
infected.

On 26 June 2012 20:53, Matthew Black <Matthew.Black () csulb edu<mailto:

Matthew.Black () csulb edu>> wrote:

Google Safe Browsing and Firefox have marked our website as containing

malware. They claim our home page returns no results, but redirects users
to another compromised website couchtarts.com<http://couchtarts.com>.


We have thoroughly examined our root .htaccess and httpd.conf files and

are not redirecting to the problem target site. No recent changes either.


We ran some NSLOOKUPs against various public DNS servers and

intermittently get results that are NOT our servers.


We believe the DNS servers used by Google's crawler have been poisoned.

Can anyone shed some light on this?

matthew black
information technology services
california state university, long beach
www.csulb.edu<http://www.csulb.edu><http://www.csulb.edu>



--
Landon Stewart <LStewart () Superb Net<mailto:LStewart () Superb Net>>
Sr. Administrator
Systems Engineering
Superb Internet Corp - 888-354-6128 x 4199 Web hosting and more "Ahead
of the Rest":
http://www.superbhosting.net<http://www.superbhosting.net/>
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