Microsoft Defender SmartScreen "prevented an unrecognized app from starting. Running this app might put your PC at risk"

[Semiotikal]

The problem:

Tried to install Mod.Organizer-2.5.1rc2.exe
Receive "Windows protected your PC" error screen. See screenshot
Microsoft Defender doesn't recognize the publisher

To Reproduce:

Run Mod.Organizer-2.5.1rc2.exe

Environment:

Microsoft Windows 10 Home Version10.0.19045 Build 19045

Details:

I've searched and found many issues describing false0positives for Microsoft Defender detecting UFVS and other systems as malware, but this

Possible Solutions:

1. Google (stackoverflow) seems to indicate possibly related to lack of Extended Validation Certificates for code-signing. Sounds like this costs $$$$ though.
2. Submit file for Malware Analysis with Microsoft:

Microsoft allows software developers to submit a file for malware analysis. According to Microsoft, this will help developers to "validate detection of their products". If the review was successful, the Microsoft SmartScreen warnings will go away faster, or sometimes even instantly (it worked instantly for one of my own apps). You need to have a Microsoft account to submit your app for review.