When I logged into Racktor in Dralk without the Lesser Epic Boss quest or having done said quest for a few days, he spawned in with the Lesser Epic Boss aura. I checked through my other characters and this is what I came up with:
Name - Has Done Lesser Quest? - Level - Has Aura?
Racktor - Yes - 100 - Yes
Dorokane - Yes - 100 - Yes
Alaike - No - 11 - No
Zikari - No - 100 - No
Teikera - Yes - 100 - Yes
None of these characters logged in anywhere near a Lesser Epic Boss. A friend of mine said he randomly got the aura in the middle of Spiritous Swamp as well but that could have been from Daknor. (Not sure where he was?)
I think any character who has done the quest before logs in with the aura despite the quest being complete looking at what I came up with.
Can anyone else confirm with their characters who have done/not done the quest?