What you experience is actually a false positive which means that your antivirus/Internet security application wrongly identifies anything on the website as a threat, but it isn't. I've been downloading from this website for a very long time and never had any issues with malware or trojans or anything related to those.
Some apps might have bundled products, but you can decline their installation and that's it. Just pay attention to the installer and the details it offers.
If you know the page, simply download the software and continue with its installation.