strange errors

[stevelibby]

A little while a go i set up a script on my site that if any suspicious charactors are entered into the address bar after the? then it would send the user to a error page to which i log the error which one of was this:
page=http%3A%2F%2Fwww.example.com%2Fforum%2Flovuqo%2Fzil%2F&make=chevrolet

Any one got any ideas what this type of activity is trying to achieve?

[edited by: engine at 10:52 am (utc) on Jan. 16, 2008]
[edit reason] examplified [/edit]

[phranque]

that looks like a typical url-encoded (special characters in the url converted to % encoded characters) url.
assuming that is the request parameter string you recorded, that would be a typical way to pass urls to a tracking/redirect script.

[stevelibby]

this particular one is not linked to a redirect script, what and how can this type of activity aid the website invloved?

[stevelibby]

has anyone got any ideas on why this script is and has been used?

[Gremil]

I get this sort of thing all of the time. I just assume it's random errors and there probably isn't any malicious intent. I have no other explanation for them.