Yep, there's been a lot of talk about this newish rootkit, and Microsoft's advise on how to clean it.
But going back years when I first started with UNIX systems, the advise for a system that had a rootkit installed or had been hacked was simple. "Wipe the HDDs and do a clean install. Restore user data from backup, and verify setup in line with documentation".
Or as Ellen Ripley put "nuke the entire site from orbit. It’s the only way to be sure".
My personal thought is, yes you may have cleaned the rootkit, but what else has been installed?