Some Game Trainers are sometimes reported to be a Virus or Trojan, the most common is a keylogger called HotKeysHook or the file has been packed/protected with VMProtect or Themida and is recognized as Win32/Packed.VMProtect or Win32/Packed.Themida.
In most cases using a No-CD or Fixed EXE will solve this problem! When this happens use the original EXE to play online, else you could find yourself banned from the game! : STEAM (Devonu DRM + 3rd-Party EULA) (Digital Download) Game or Patch Questions? Visit FileForums