How-To use the Malware Block List on Squid Proxies

To use the Malware Block List on a Squid proxy to block user access to URLs that contain Malware you need to perform the following simple steps:

To have an up-to-date block list, create a cron job to run every 4 hours, pointing to a script like this:
#!/bin/sh
wget --no-check-certificate -O - _URL_to_your_Squid_block_list_ > /etc/squid/malware_block_list.txt
squid -k reconfigure