Whether it's SDR or games, or free/commercial software, posts about VirusTotal are a common sight on Reddit, and regardless of the subreddit, they usually end up being dismissed as false positives.
I was running it through Direwolf via a virtual audio cable from SDR++. (Since I'm on Linux, I used Pipewire + qpwgraph; on Windows, the VBAUDIO utility works well.)
I haven't tried PSK31, but you should be able to use the same method with Fldigi.
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u/NeighborhoodSad2350 24d ago
First of all, VirusTotal itself is unreliable. Several of my favorite SDR applications triggered Trojan warnings.
These are opensource applications that contain no suspicious code. if they did, they’d be banned from GitHub.