When connected to DALnet I get a lot of private messages from everywhere with reference to "Kolayweb.com". I understand that this is a script-virus message and the site is fake. The messages are very annying.
How can I protect my mIRCclient from receiving these messages? Can I block incoming messagelines containing certain text-strings e.g. "http://"?

I'm using mIRC 6.03

/Jan