It is only present within the sony cinescore v1.0c incl keygen-SSG.rar file so getting rid (delete) of that file will get rid of the file within it that was being detected.
You can't just not use that file, it will be an integral part, if you chose to unpack that .rar file and install the program then the trojan too would be installed, that is the whole concept of the trojan infection, it comes with something else that you think you are installing only to find it has guests along for the party.