... I don't think so, largely because I would have expected some hint of that in Slayer's thoughts when he tries to kill Rand in Far Madding.

Also, both Ishamael and Lanfear clearly want him alive at this point, and they are the only Forsaken we know to be awake at this time, so who would have given Slayer the order?

Although, that does raise the question of who gave the order even if it was a regular Darkfriend. Might it have been someone Fain left behind?