[squid-users] How can i block this type of script

greetings

i am using squidguard for content filtering.

How can i block this type of script?

http://www.softworldpro.com/demos/proxy/

it's easy to block the url. but when the script is executed there is
nothing in the url that will let me key in on.
here is the regex I am using:

#Block Cgiproxy, Poxy, PHProxy and other Web-based proxies
(cecid.php|nph-webpr|nph-pro|/dmirror|cgiproxy|phpwebproxy|nph-
proxy.cgi|__new_url)
Received on Fri Aug 31 2007 - 11:47:57 MDT