I got a similar warning from my firewall (Comodo FW) when Conquer was at the log in screen. It was something like "Conquer.exe tries to access the keyboard directly". This is something also keyloggers do.
To be safe, I agree with ho30 to run another virus scan, or upload the .exe file to an online scan engine.
Have you tried if other programs where you have to put in a username and PW also give that error (other online games, but not websites).
Imho it is just the method of putting in username and PW that causes the warning.
If this helps you, I left everything as it is and haven't been hacked so far