From all the people who downloaded the game you're the first one to talk about a trojan.
Ren'py is a heuristic engine and it's possible for false positives to happen BUT I keep my files safe too and check often (windows defender, malwarebytes, roguekiller). Your problem comes most likely from your anti virus or an other external source as I did reinstal the game myself on my own computer and got nothing out of it.
From the look of it it looks like you've been scammed by something else. Probably your anti virus or an ad.
But definitely not from my game. I hope you can fix your issue tho.