First of all if u ever remembered that captian aibatt or aibatt of any kind will never spawn red names, this cancle the possibilty of taking it from Flaris.
Hence, I can conclude that the answer is very simple. It was a aggro from a lvl 60 mob near Darkon town, however, it couldn't be the lvl 60 quest mob outside clockwork because it only aggro lawolf. Thus, it must be the the lvl 60 quest mob that looks like glaphan that aggro captian aibatts.