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PointyHair -- Engineering, Technology : Russian (caravan.ru) link spammers

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Russian (caravan.ru) link spammers
posted by TaneliOtala on Mon 03 of Sep, 2007 [16:11 UTC]

Tiki link spammers

So tired... seriously, first email spam (BTW, how about a presidential candidate that has capital punishment for spammers?) and now trackback link spammers.

There is this russian network, caravan.ru, that is relentlessly pounding on my dozen or so tikiwiki sites, adding a trackback link spam every few second.

Here is what it looks like in your logs:

217.23.147.210 - - 03/Sep/2007:08:53:10 -0700 "POST /tiki-view_blog_post.php/1/1 HTTP/1.1" 200 - "-" "WordPress/1.9"
212.24.48.34 - - 03/Sep/2007:08:53:16 -0700 "POST /tiki-view_blog_post.php/1/2 HTTP/1.1" 200 - "-" "WordPress/2.0"
217.23.143.226 - - 03/Sep/2007:08:53:31 -0700 "POST /tiki-view_blog_post.php/1/2 HTTP/1.1" 200 - "-" "WordPress/2.0"
217.23.133.242 - - 03/Sep/2007:08:53:39 -0700 "POST /tiki-view_blog_post.php/1/5 HTTP/1.1" 200 - "-" "WordPress/1.9"
217.23.151.130 - - 03/Sep/2007:08:53:45 -0700 "POST /tiki-view_blog_post.php/1/5 HTTP/1.1" 200 - "-" "WordPress/1.9"
217.23.143.224 - - 03/Sep/2007:08:53:50 -0700 "POST /tiki-view_blog_post.php/3/19 HTTP/1.1" 200 - "-" "WordPress/2.1.2"
217.23.132.114 - - 03/Sep/2007:08:53:54 -0700 "POST /tiki-view_blog_post.php/3/19 HTTP/1.1" 200 - "-" "WordPress/2.1.2"
212.24.48.31 - - 03/Sep/2007:08:53:58 -0700 "POST /tiki-view_blog_post.php/2/7 HTTP/1.1" 200 - "-" "WordPress/2.0"
217.23.143.26 - - 03/Sep/2007:08:54:02 -0700 "POST /tiki-view_blog_post.php/2/7 HTTP/1.1" 200 - "-" "WordPress/2.0"
212.24.48.52 - - 03/Sep/2007:08:54:04 -0700 "POST /tiki-view_blog_post.php/3/9 HTTP/1.1" 200 - "-" "WordPress/2.1.2"

Let's see, what are the options?

Disallow trackback links? There goes the idea of wiki...
Disallow user registrations? Where's the fun in that?
Require user registrations to be manually approved, and require registration before trackback links are allowed?
All of the above?

Well, let's just first plain block the caravan.ru network out:

iptables -A INPUT -s 212.24.48.170/24 -p tcp --dport www -j droplog
iptables -A INPUT -s 81.176.0.0/15 -p tcp --dport www -j droplog
iptables -A INPUT -s 62.213.64.0/18 -p tcp --dport www -j droplog
iptables -A INPUT -s 212.158.160.0/20 -p tcp --dport www -j droplog
iptables -A INPUT -s 217.23.128.0/19 -p tcp --dport www -j droplog
iptables -A INPUT -s 212.24.32.0/19 -p tcp --dport www -j droplog
iptables -A INPUT -s 85.255.118.92/24 -p tcp --dport www -j droplog
iptables -A INPUT -s 72.232.191.50 -p tcp --dport www -j droplog

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