1) Try the Symantec / Norton site to see if there is a TOOL to kill this particular Trojan.
2) Same goes for the Kaspersky site
Did you run Malwarebytes?
3) Download Malwarebytes from this google search only >> "bleepingcomputer malwarebytes"
4) Run Malwarebytes and clean when it prompts you.
NOW, if this does not work and you cannot find the TOOL to kill that Trojan.
Backup Files and a full Operating System reload is required.
You may query an Administrator on this site to see if you can get a more
detailed / step-by-step answer to kill this Trojan. They are getting more and
more harder to kill...I'm sorry.
One thing comes to mind, reboot in SAFE mode and run Malwarebytes