Upload the files to virustotal to see what it says.

This will almost certainly be a false positive, its a heuristics(I think that's the correct term) based detection, basically just matches certain characteristics of files that have been related to that trojan.

These days Defender has exceptional real time malware scanning capabilities, it often picks up stuff as you download it or even as it executes. If this was a detection of an existing file, its very likely a false positive.

The definitions picked up as a different name from everything almost everybody just refers to it is a generic Trojan.

It could very well just be a false positive but I wouldnt leave it at that.

An offline windows defender scan would be a good idea.

You can always switch over to bitdefender there's a free version of you search hard enough. Don't run Windows defender and bit defender at the same time long term but it's not a bad way to get a second opinion.

I'd be happy to check its contents on MacOS or Linux. But I also agree with the virustotal recommendation.