It is an ".exe" file - the newest version of VARA for digital HAM radio that all HAM radio operators in the world MUST update to by tomorrow, and only has been available in the last day or two. Hmmm, sounds like a made-for-hackers moment to me, so I didn't just bypass the warning and trust Malwarebytes. Just an hour ago, the creators of VARA verified that there is a problem with their ".exe" installation file, and they will be releasing a fix to it some time later today.
So, my question changes - Azden.B!cl is a serious ransomware threat; why did Malwarebytes not detect it? I attached the zip file that I downloaded which contains the new VARA installation file - so that you can inspect the ".exe" file (but don't run it!).
VARA HF v4.0.1 setup (do not install until June 30th)-1.zip