A PSA to all, Check where you get your installers from. This reddit user found that someone could have changed a link in the Chia Team’s github to install malware. https://www.reddit.com/r/chia/comments/n90s9q/virus_warnings_after_installing_chia_114/
I get the official Binary from this page: https://download.chia.net/?prefix=install/
Edit: Looks like this affected the 1.1.4 installer only? More research needed.