I wouldn't bother, Definately a FP.
Not every program gets it right every time.
I have had "Everything" for years.
Nod 32 doesn't pick it up nor or any other security program I scan with.
What Nod doesn't pick up isn't worth the time of day.
I am not the least bit concerned if it doesn't affect my Computer in any way.
I don't go looking for things to fix.
Adwcleaner FP's https://forum.avast.com/index.php?topic=129489.0