Take the 2-minute tour ×
Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

I have just noticed hundreds of strange entries in my access.log in /var/log/apache2, they all look like this:

173.193.233.143 - - [26/Jun/2011:13:50:24 +0400] "GET http://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/www.bing.comhttp://www.bing.com/search?q=from+%2findex.php?showuser%3d+%22Comments%22+6&filt=all&first=41&FORM=PORE HTTP/1.0" 200 42542 "http://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/google.comhttp://google.com/www.bing.comhttp://www.bing.com/search?q=from+%2findex.php?showuser%3d+%22Comments%22+6&filt=all&first=41&FORM=PORE" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; XMPP Tiscali Communicator v.10.0.2; .NET CLR 2.0.50727)"

Anyone has an explanation for this strange behaviour?

share|improve this question

1 Answer 1

up vote 2 down vote accepted

That will be infected machines scanning to see if your machine is vulnerable to the security fault used to infect those machines, so they can spread the infection to you.

If you are patched up-to-date then you probably have nothing to worry about - this sort of thing is seen all the time (I still occasionally see attempts to scan for ancient flaws in PHP and IIS+ASP, even to machien not running those servers/services).

The "200", if that field is the response code rather than something else like the request size, implies that you server send something other than an error back in response to the request, so it might be worth requesting that URL yourself to see what response you get.

share|improve this answer
    
The server automatically displays front page if an error occurs, so that might be the case of 200. THanks for info! –  Maurycy Zarzycki Jun 28 '11 at 18:03

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.