Links to large files result in unacceptable high traffic

I have a page with a link that points to a 700 MB file:
page: http://amedee.be/ubuntu-acer-aspire-one-easy-way
link to: http://ftp.belnet.be/mirror/ubuntu.com/releases/8.10/ubuntu-8.10-mid-lpi...

Urlicon tries to fetch the entire 700MB file in an attempt to display an icon.
This results in an unreasonable high amount of traffic.
Before I found that Urlicon is causing the traffic, I blacklisted the IP address of ftp.belnet.be in my firewall.

Now that I have found the cause, I will change Filter URLs in admin/settings/filters from Find all external URLs and append the according favicon (if available) to Find all external URLs and append an external link icon.
I am even considering uninstalling the module. Too bad, because it looks nice. But the unexpected traffic was just too much.