How to update Boclean Definitions manually?

Hi guys, i have just download boclean 4.23.
However, i am behind a proxy server which needs authentication
and i can’t get boclean to update automatically.
I went to nsclean.com to try to down the definitions, however, it is 4.22.xnu.
Where can I download the latest definitions to protect my machine?
Thanks guy in advance.

Probably this will help

Thanks.