nanog mailing list archives
Re: DNS poisoning at Google?
From: Jason Hellenthal <jhellenthal () dataix net>
Date: Wed, 27 Jun 2012 01:53:21 -0400
On Tue, Jun 26, 2012 at 10:36:55PM -0700, Landon Stewart wrote:
There is definitely a 301 redirect. $ curl -I --referer http://www.google.com/ http://www.csulb.edu/ HTTP/1.1 301 Moved Permanently Date: Wed, 27 Jun 2012 05:36:31 GMT Server: Apache/2.0.63 Location: http://www.couchtarts.com/media.php Connection: close Content-Type: text/html; charset=iso-8859-1
And if you visit http://www.couchtarts.com/media.php using the correct broser you end up back at http://google.com ...
On 26 June 2012 22:05, 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' 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 MSWindows!Not sure how malicious software could get between our load balancer andUnix 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 aredirect 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 containingmalware. 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 andare not redirecting to the problem target site. No recent changes either.We ran some NSLOOKUPs against various public DNS servers andintermittently 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/>-- Landon Stewart <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
-- - (2^(N-1))
Current thread:
- Re: DNS poisoning at Google?, (continued)
- Message not available
- Re: DNS poisoning at Google? Grant Ridder (Jun 26)
- RE: DNS poisoning at Google? Matthew Black (Jun 27)
- Re: DNS poisoning at Google? Bryan Irvine (Jun 27)
- Re: DNS poisoning at Google? Ishmael Rufus (Jun 27)
- RE: DNS poisoning at Google? Ian McDonald (Jun 27)
- Re: DNS poisoning at Google? Michael J Wise (Jun 27)
- Re: DNS poisoning at Google? TR Shaw (Jun 27)
- Re: DNS poisoning at Google? AP NANOG (Jun 27)
- RE: DNS poisoning at Google? Matthew Black (Jun 27)
- Re: DNS poisoning at Google? Bryan Irvine (Jun 27)
- Re: DNS poisoning at Google? Jason Hellenthal (Jun 26)
- Re: No DNS poisoning at Google (in case of trouble, blame the DNS) Daniel Rohan (Jun 27)
- Re: No DNS poisoning at Google (in case of trouble, blame the DNS) Arturo Servin (Jun 27)
- Re: No DNS poisoning at Google (in case of trouble, blame the DNS) Jason Hellenthal (Jun 27)
- Re: No DNS poisoning at Google (in case of trouble, blame the DNS) Ryan Rawdon (Jun 27)
- Re: No DNS poisoning at Google (in case of trouble, blame the DNS) Ryan Rawdon (Jun 27)
- RE: No DNS poisoning at Google (in case of trouble, blame the DNS) Matthew Black (Jun 27)
- RE: No DNS poisoning at Google (in case of trouble, blame the DNS) Matthew Black (Jun 27)
- Re: No DNS poisoning at Google (in case of trouble, blame the DNS) AP NANOG (Jun 27)