If you can’t update or the patcher gets quarantined.
The IDP.Generic antivirus alert is a false positive, please ignore it and just exclude the patcher from your AV.
You can send them a sample of the file, if you want the false detection to be fixed. AV systems hate self contained updaters as it's literally the same thing that malware often does. Also the way the new game protection checks have to be evaded is considered bad behavior by some Free Antivirus Software.