I just re-installed the OS on a customer's computer that fell for something like that.
MSE could detect it, NOTHING I had available to me could remove it it even survived formatting the drive. Interestingly it managed to infect the utility partition on a Dell GX270...
Frankly with this little bastart in the future I'll use an "Aliens" soluton to the problem, "take off and nuke the site from orbit, it's the only way to be sure"
I simply gave the customer another very simiar computer because I wanted to "play" with this nasty little bugger...
Unfortunatly like my cat with baby rabbits, I played too hard and inadvertantly
But atleast I now know HOW to kill it.
Unfortunatly killing it and recovering ANY data on the computer have proved to be mutually exclusive.
NEXT time I encounter it I'll try deleting the factory restore partition with a windows installation disc, then if the computer will still boot let the AV software try to kill it.
Frankly though if it wasn't for customer's stupidity I'd starve.