Very fake.
We know what all the potential names for runewords are. Those two names aren't on the list.
Also, those recipes aren't on the 1.07 disabled runewords list. In order to make them, you'd have to guess correctly from billions of possibilities. That's practically impossible. So they couldn't actually have discovered runewords like that.
EDIT:
Also, the defense of the armour is wrong. Ethereal balrog skin with 400% enhanced defense would have 3075-3875 defense, not 2465.
We know what all the potential names for runewords are. Those two names aren't on the list.
Also, those recipes aren't on the 1.07 disabled runewords list. In order to make them, you'd have to guess correctly from billions of possibilities. That's practically impossible. So they couldn't actually have discovered runewords like that.
EDIT:
Also, the defense of the armour is wrong. Ethereal balrog skin with 400% enhanced defense would have 3075-3875 defense, not 2465.