Unfortunately this seems to be a problem with the bleeding edge builds of bepinex. I tried to build the autotranslator using those versions available
You must be registered to see the links
but it triggers the same virus alerts. If you are interested in checking this for yourself you can grab the original download from
here and scanning that for viruses and then downloading the bepinex il2cpp from the previous link and extracting into the game root. When you try to set that up by running the games exe file it should trigger the same virus checks as this download does
Edit: as far as I can tell this is because those checks are generic tests for trojans based on certain activity usually associated with trojans. it seems like bepinex will have a stable version 6 release soon enough so for anybody who is reluctant to use the triggering bleeding edge builds id say just wait for that official version which should be publically viewable on their github and so more sure of not being a virus