A trojan with a 10k price tag? hmm...
Hi there, I've already verified this with VirusTotal, you can check the other comment - it is a false positive by Windows Defender and you can google the exact error itself or check reddit threads that confirm that it is a false positive.
As for price tag, this was already explained in a previous announcement as well as a comment here. The game is moving onto Steam so I wanted to temporarily disable new purchases while allowing older users who had purchased the game to continue get access to updates - I have sent an email to itch.io to do this but there hasn't been a response in two days so for now the less elegant solution is to set it to a maximum price to prevent that.