System Shock Portable IDP.ALEXA.51 possible false positive?

So I decided to dig up System Shock Portable from my games folder and try it out again and avast has decided it’s a threat. The program appears to create this file upon running for the first time and avast keeps deleting it. I did a quick search on IDP.ALEXA.51 and it seems to come up as a false positive fairly often. I put it through virustotal and it came up clean so I’m fairly sure it’s a false positive but I’d like some confirmation on this.

Report a false positive (select file or website)
https://www.avast.com/false-positive-file-form.php

Submitting files from the Virus Chest to Avast Virus Lab
https://support.avast.com/en-eu/article/21/