RewriteCond %{HTTP_USER_AGENT} webofantbot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^nrsbot/5 [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^exooba [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^test\ crawler [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^tineye [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^heritrix [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^gaisbot\.*$ [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^discobot\.*$ [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^iiitbot\.*$ [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^python\-urllib\.*$
RewriteRule !^verboten\.php$ verboten.php [F]