Avast calls it clean and as far as I know always has, but Yeah looking into it more, the creator of the program said the problem was due to the UPX compression and further updates won't use it.
"YAHELITE BUILD 331
YAWN
o- Yahelite rises after an 18 month snooze.
o- captcha fixed.
o- distributed without UPX compression."
Of course the program has been abandoned for awhile now, no updates in almost two years, I've used it since about 2007-2008 with no issues, but if it was found to be legitimately risky, I would stop using it in a heartbeart. It's just a third party chat client used to access yahoo chat rooms.
I think this falls under the same category as mIRC, while held by some as a PUP if installed without your permission due to a trojan or whatever, if installed by you and operated by you, it seems safe but can you explain the "Automatic start up location = 001 Running Processes" I don't understand that does it mean I'm just currently using it, because yes I am.