FBI Trojan virus

Recently I've gotten the FBI Ransompak i think its called. As a regular computer user i immediately shut down my computer and ran SuperAntiSpyware and Malwarebytes. I also did a system restore before this. My main question is is it really gone? I want to know if i should just let it be or do a whole entire computer restore to get rid of it. Please reply soon because this virus scares me along with my brother who use this computer regularly for gaming and research uses.