Re: Server Attack

[altendew <andrew@shiftcode.com>]

I was actually thinking about that but arn't all those IPs spoofed? Could an
innocent user have that IP address? Is it possible that he is randomly
generating those IPs or is that impossible. Also most of those IPs are
telecom servers.


altendew wrote:
> 
> Hi someone is currently sending requests to our server 20x a second.
> 
> Here is what one of the logs look like.
> 
> [CODE]
> Host: 84.77.19.46   /signUp.php?ref=1945777  
>   Http Code: 403  Date: Aug 27 17:44:38  Http Version: HTTP/1.0  Size in
> Bytes: -  
>   Referer: -  
>   Agent: Mozilla/5.0 (Macintosh; MTQ; PPC Mac OS X; en-US)
> AppleWebKit/578.4 (KHTML, like Geco, Safari) OmniWeb/v643.68e=C:  
> 
> Host: 82.234.98.65   /signUp.php?ref=ec0lag  
>   Http Code: 403  Date: Aug 27 17:44:38  Http Version: HTTP/1.0  Size in
> Bytes: -  
>   Referer: -  
>   Agent: Mozilla/5.0 (Macintosh; CDB; PPC Mac OS X; en-US)
> AppleWebKit/126.0 (KHTML, like Geco, Safari) OmniWeb/v554.35  
> 
> Host: 84.94.31.161   /signUp.php?ref=ec0lag  
>   Http Code: 403  Date: Aug 27 17:44:38  Http Version: HTTP/1.0  Size in
> Bytes: -  
>   Referer: -  
>   Agent: Mozilla/5.0 (Macintosh; TLD; PPC Mac OS X; en-US)
> AppleWebKit/502.6 (KHTML, like Geco, Safari) OmniWeb/v401.63ive=C:  
> 
> Host: 81.49.24.92   /signUp.php?ref=1945777  
>   Http Code: 403  Date: Aug 27 17:44:38  Http Version: HTTP/1.0  Size in
> Bytes: -  
>   Referer: -  
>   Agent: Mozilla/5.0 (Macintosh; SZS; PPC Mac OS X; en-US)
> AppleWebKit/230.1 (KHTML, like Geco, Safari) OmniWeb/v710.56ive=C:  
> 
> Host: 80.129.248.17   /signUp.php?ref=1945777  
>   Http Code: 403  Date: Aug 27 17:44:38  Http Version: HTTP/1.0  Size in
> Bytes: -  
>   Referer: -  
>   Agent: Mozilla/5.0 (Macintosh; OST; PPC Mac OS X; en-US)
> AppleWebKit/243.6 (KHTML, like Geco, Safari) OmniWeb/v846.88  
> 
> Host: 87.235.49.194   /signUp.php?ref=ec0lag  
>   Http Code: 403  Date: Aug 27 17:44:38  Http Version: HTTP/1.1  Size in
> Bytes: -  
>   Referer: -  
>   Agent: Mozilla/5.0 (Macintosh; SDD; PPC Mac OS X; en-US)
> AppleWebKit/430.1 (KHTML, like Geco, Safari) OmniWeb/v145.34  
> 
> Host: 125.129.12.61   /signUp.php?ref=1945777  
>   Http Code: 403  Date: Aug 27 17:44:38  Http Version: HTTP/1.0  Size in
> Bytes: -  
>   Referer: -  
>   Agent: Mozilla/5.0 (Macintosh; WCG; PPC Mac OS X; en-US)
> AppleWebKit/455.3 (KHTML, like Geco, Safari) OmniWeb/v042.84stemDrive=\x81  
> 
> Host: 66.110.153.47   /signUp.php?ref=ec0lag  
>   Http Code: 403  Date: Aug 27 17:44:38  Http Version: HTTP/1.0  Size in
> Bytes: -  
>   Referer: -  
>   Agent: Mozilla/5.0 (Macintosh; ZAM; PPC Mac OS X; en-US)
> AppleWebKit/387.2 (KHTML, like Geco, Safari) OmniWeb/v456.02ve=C:  
> 
> Host: 62.2.177.250   /signUp.php?ref=ec0lag  
>   Http Code: 403  Date: Aug 27 17:44:38  Http Version: HTTP/1.0  Size in
> Bytes: -  
>   Referer: -  
>   Agent: Mozilla/5.0 (Macintosh; LMZ; PPC Mac OS X; en-US)
> AppleWebKit/206.1 (KHTML, like Geco, Safari) OmniWeb/v204.07es  
> 
> Host: 200.115.226.143   /signUp.php?ref=1945777  
>   Http Code: 403  Date: Aug 27 17:44:37  Http Version: HTTP/1.1  Size in
> Bytes: -  
>   Referer: -  
>   Agent: Mozilla/5.0 (Macintosh; EDE; PPC Mac OS X; en-US)
> AppleWebKit/647.0 (KHTML, like Geco, Safari) OmniWeb/v760.47emDrive=C:\x81  
> 
> Host: 84.171.125.189   /signUp.php?ref=1945777  
>   Http Code: 403  Date: Aug 27 17:44:37  Http Version: HTTP/1.0  Size in
> Bytes: -  
>   Referer: -  
>   Agent: Mozilla/5.0 (Macintosh; QHA; PPC Mac OS X; en-US)
> AppleWebKit/778.0 (KHTML, like Geco, Safari) OmniWeb/v456.03=C:  
> 
> Host: 83.242.79.70   /signUp.php?ref=1945777  
>   Http Code: 403  Date: Aug 27 17:44:37  Http Version: HTTP/1.0  Size in
> Bytes: -  
>   Referer: -  
>   Agent: Mozilla/5.0 (Macintosh; GFS; PPC Mac OS X; en-US)
> AppleWebKit/537.0 (KHTML, like Geco, Safari) OmniWeb/v313.01rive=C:  
> 
> Host: 86.69.194.172   /signUp.php?ref=ec0lag  
>   Http Code: 403  Date: Aug 27 17:44:37  Http Version: HTTP/1.0  Size in
> Bytes: -  
>   Referer: -  
>   Agent: Mozilla/5.0 (Macintosh; ZCV; PPC Mac OS X; en-US)
> AppleWebKit/468.2 (KHTML, like Geco, Safari) OmniWeb/v026.14stemDrive=\x81  
> 
> Host: 196.203.176.26   /signUp.php?ref=ec0lag  
>   Http Code: 403  Date: Aug 27 17:44:37  Http Version: HTTP/1.1  Size in
> Bytes: -  
>   Referer: -  
>   Agent: Mozilla/5.0 (Macintosh; BXT; PPC Mac OS X; en-US)
> AppleWebKit/840.3 (KHTML, like Geco, Safari) OmniWeb/v767.50s  
> 
> Host: 201.41.241.190   /signUp.php?ref=1945777  
>   Http Code: 403  Date: Aug 27 17:44:37  Http Version: HTTP/1.0  Size in
> Bytes: -  
>   Referer: -  
>   Agent: Mozilla/5.0 (Macintosh; TYZ; PPC Mac OS X; en-US)
> AppleWebKit/742.0 (KHTML, like Geco, Safari) OmniWeb/v715.65C:  
> 
> Host: 200.84.144.234   /signUp.php?ref=ec0lag  
>   Http Code: 403  Date: Aug 27 17:44:37  Http Version: HTTP/1.1  Size in
> Bytes: -  
>   Referer: -  
>   Agent: Mozilla/5.0  
> [/CODE]
> 
> We are currently blocking this user through our Apache.
> 
> .htaccess
> [CODE]
> RewriteEngine On 
> RewriteCond %{HTTP_USER_AGENT} ^Mozilla/5\.0\ \(Macintosh;\ (.+)\ PPC\
> Mac\ OS\ X;\ en-US\)\ AppleWebKit/(.+)\ \(KHTML,\ like\ Geco,\ Safari\)\
> OmniWeb/v([0-9]+).([0-9]+)(.+)$
> RewriteRule .* - [F]
> [/CODE]
> 
> That works fine and is giving the user a 403 (Forbidden), but the problem
> is that half of our Apache processes are from this user.
> 
> Is there a way to block his user agent before he gets to Apache? Sometimes
> this brings our server to a crash.
> 
> Thanks
> Andrew
> 

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