I've used nsshell to great effect on multiple projects, highly recommend it (but an encrypted option would be great rook). I've also written a more heavy handed

I've used nsshell to great effect on multiple projects, highly recommend it (but an encrypted option would be great rook). I've also written a more heavy handed asymmetrically encrypted DNS C2 https://github.com/BishopFox/sliver https://github.com/BishopFox/sliver