robot hammering apache2

Posted by user1571418 on Server Fault See other posts from Server Fault or by user1571418
Published on 2012-08-03T13:46:36Z Indexed on 2012/09/29 3:41 UTC
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apache2

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security

My apache2 log is bombarded with lines like:

108.5.114.118 - - [03/Aug/2012:15:23:28 +0200] "GET http://xchecker.net/tmp_proxy2012/http/engine.php HTTP/1.0" 404 1690 "http://xchecker.net/tmp_proxy2012/http/engine.php" "Mozilla/4.0 (compatible; MSIE 6.0; Windows 98; Win 9x 4.90)"

I am puzzled by this -- why is a request for some weird xchecker.net domain ending up on my server in the first place?!

The request comes every few dozens of seconds, must be a robot. Any ideas what it is?

Btw that URL is valid -- apparently it contains some test page...

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