Ok, sad to said, you gone to some xxx or downloaded something
(hack or illegal) stuff. BUT! we are not here to blame whose
fault.
This become a process in your iexplorer already. Sort of a bug more
than a virus. Sad to say, cases so far only format can do the
job...
Note: Windows update, online scanner, symantic and other client
side scanner is useless as the bug is now a bug and not a
virus.
Backup and prepare to format... sadded case 