It's just the default windows defender
Yandere AI Girlfriend Simulator ~ With You Til The End 世界尽头与可爱猫娘 ~ 病娇AI女友 Powered by ChatGPT » Comments
Virus detection is checking the file against a checksum. If somehow the build file contains this checksum anywhere, its marked as infected (which it is not). I think that may be the reason.
I just quickly rebuild the win version by upgrading my Unity Game Engine. Let me know if the new uploaded build solves the issue!