DNS poisoning at Google?

Ishmael Rufus sakamura at gmail.com
Wed Jun 27 00:13:58 CDT 2012


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 at 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 at dreamhost.com]
> Sent: Tuesday, June 26, 2012 9:58 PM
> To: Matthew Black
> Cc: nanog at 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' 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 at 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 at superb.net]
> > Sent: Tuesday, June 26, 2012 9:07 PM
> > To: Matthew Black
> > Cc: nanog at 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 at csulb.edu<mailto:
> Matthew.Black at 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 at Superb.Net<mailto:LStewart at 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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