MPlayerX Malware Removal

I was recently approched by a friend who had accidentally downloaded and run the installer for what appears to be a trojan. The installer says it is "MPlayerX" which appears to be a legitimate application, however the installer bears no resemblence to the one of the actual application.

Virus total link

Here is a screenshot:

He followed through the install process, and entered his password. I did a lot of googling but could not find any information. I then decided to give it a crack mysef and opened up the install binary in a disassembler. Unfortunatley, this was way above my level and I could not make sense of it. Here are the details of his computer:

As he supplied his password, it is possible that it may have installed a rootkit as well.

Has anyone ever encountered this before, or do you know how to remove it?