False worm/autoit.ADTK detection?

Hello, and thanks for your time.

When I booted up my computer today, AVG9 Free detected a threat called "Virus identified Worm/Autoit.ADTK." I'm not sure the "Virus identified" part is indeed part of the name, but it says "Threat name:" as well. Haven't gotten many detections from AVG, so I can't be sure.

Anyway, AVG is saying that the program that's infected is AutorunEater's oldmcdonald.exe, a program that was recommended here to resolve a trojan I somehow picked up a while back. I am posting to ask if this is a false detection or if I actually have this worm and should READ & RUN?

EDIT: I have not told AVG whether to move the file or ignore it, and I have a picture of the threat popup:

 

So no one has any idea?
Google didn't bring up anything helpful.

 

Thank you very much, sir.
This was not something I enjoyed waking up to on my birthday. Haha.
I appreciate the help.