Thanks for replying, I use windows 10 Defender, and the message I got is: Trojan:Script/Oneeva. A!ml
...Windows 10 Defender is... not a very good antivirus. Get a standalone virus scanner - Avira, Avast, Bitdefender, or Kaspersky are all good choices.
The actual message is not a proper "this is a specific malware" message, but merely a "this kinda sorta makes me think of malware" message; that's what the !ml part at the end means, as I understand it.
Given the two points above, odds are good that it's Defender being overly paranoid. It's your decision as to whether you override Defender and get to play Aurora 4x, or not.