Htaccess bloqueo url

[radarcba]

Un tutorial:
http://www.ajota.es/2006/12/mod_rewrite_con.html

Proba con este código, en realidad es para prevenir inyección de código, pero a lo mejor estudiandolo te sirve:

Código:

# proteccion contra spammers y hackers!
 

# .fixed (no remover esta linea!)

# Enciende la reescritura
RewriteEngine On
Options +FollowSymLinks

# 403 para evitar inyeccion de codigo
RewriteCond %{HTTP_USER_AGENT} ^$ [OR]
RewriteCond %{HTTP_USER_AGENT} ^(-|\.|') [OR]
RewriteCond %{HTTP_USER_AGENT} ^(.*)(<|>|%3C|%3E)(.*) [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^(java|curl|wget)(.*) [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^(.*)(libwww-perl|libwwwperl|snoopy|curl|wget|winhttp|python|nikto|scan|clshttp|archiver|loader|email|harvest|fetch|extract|grab|miner|suck|reaper|leach)(.*) [NC]
RewriteCond %{HTTP_USER_AGENT} ^BlackWidow [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Bot\ mailto:[email protected] [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^ChinaClaw [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Custo [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^DISCo [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Download\ Demon [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^eCatch [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^EirGrabber [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^EmailSiphon [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^EmailWolf [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Express\ WebPictures [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^ExtractorPro [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^EyeNetIE [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^FlashGet [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^GetRight [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^GetWeb! [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Go!Zilla [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Go-Ahead-Got-It [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^GrabNet [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Grafula [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^HMView [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} HTTrack [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Image\ Stripper [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Image\ Sucker [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} Indy\ Library [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^InterGET [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Internet\ Ninja [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} Java [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^JetCar [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^JOC\ Web\ Spider [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^larbin [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^LeechFTP [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^lwp:: [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^lwp- [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Mass\ Downloader [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^MIDown\ tool [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Mister\ PiX [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Navroad [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^NearSite [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^NetAnts [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^NetSpider [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Net\ Vampire [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^NetZIP [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Octopus [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Offline\ Explorer [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Offline\ Navigator [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^PageGrabber [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Papa\ Foto [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^pavuk [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^pcBrowser [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^RealDownload [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^ReGet [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^SiteSnagger [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^SmartDownload [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Schmozilla [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^SuperBot [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^SuperHTTP [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Surfbot [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^tAkeOut [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Teleport\ Pro [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^VoidEYE [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Web\ Image\ Collector [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Web\ Sucker [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^WebAuto [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^WebCopier [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^webcollage [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebFetch [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^WebGo\ IS [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^WebLeacher [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^WebReaper [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^WebSauger [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Website\ eXtractor [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Website\ Quester [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^WebStripper [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^WebWhacker [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^WebZIP [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Wget [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Widow [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^WWWOFFLE [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Xaldon\ WebSpider [NC,OR] 
RewriteCond %{HTTP_USER_AGENT} ^Zeuse [NC] 
RewriteRule ^.*$ - [F]