It would appear that McAfee does not have whitelist options with their products. If there are or want further information, it would be best to ask on their official forums how to do this. For now all we can tell you is to disable or replace your AV with a different one (such as MSE).
Ok the good news is i have manage to find a way to use the trainer without the AV deleting it all the time
but the trainer make the game crash all the time i am using the version 1.09 game with the 1.09 version of the trainer if you have any suggestion i will be glad to hear it