The closest thing to a universally accepted high risk country list is the FAFT jurisdiction ratings, and I would opine that the FATF's ME's are only one part of analyzing a jurisdiction's risk.
Our current no fly list is the new Axis of Evil (Iran, North Korea, Sudan, and Syria). We will not process any transactions for those countries period. We recently added Russia to this list due to current events.
Outside of those jurisdictions, we will process wires to high risk countries if the purpose of the transaction(s) makes sense and lines up with the story provided by the client.
_________________________
"100 victories in 100 battles isnt the most skillful. Subduing the other's military w/o battle is the most skillful." Sun-Tzu