Create rule to check illegal web access

[Antonin <antonin () libfy com>]

Hi guys,

I need to create a specific rule to detect illegal web usage.
For example, I wan't to raise alert when users are going to websites with
warez, cracks, serials, torrent, etc...

Here is what I do:
alert tcp $HOME_NET any -> any any (msg:"POLICY VIOLATION Illegal website
Usage"; flow:to_server,established; content:"torrent"; nocase;
 http_header; metadata:service http; classtype:policy-violation;
sid:1234567894; rev:5;)

But I need to create one rule per keyword. Not very optimal.

Do you have any other idea? Tips?

Many thanks

Antonin

------------------------------------------------------------------------------
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/

_______________________________________________
Snort-users mailing list
Snort-users () lists sourceforge net
Go to this URL to change user options or unsubscribe:
https://lists.sourceforge.net/lists/listinfo/snort-users
Snort-users list archive:
http://www.geocrawler.com/redir-sf.php3?list=snort-users

Please visit http://blog.snort.org to stay current on all the latest Snort news!