Without more information, I would have a hard time telling you that THIS particular machine you've listed is a C and C botnet controller / host, or simply a machine going by that name.  I fact, I have my doubts that it is, at least, solely from the information you've given us, thus far.  A name, alone, means little.

That said...

What tool did you use to 'scan' the wireless?  Where did you come by the name, "CandC"?  Can you, at least, give us the first set of MAC address numbers that you left out (between the 00 and 7F) so that we can see who makes the adapter (assuming it's MAC wasn't altered)?  What ports does it have open, etc?  We have VERY little information, here, to even begin to tell you anything about this box.

Let's assume, for instance, that it IS a C and C botnet box.  I'd be hard pressed to think the code would 'advertise' itself as C and C, as usually, they wouldn't want to be detected.  It's more likely just a chosen name that someone gave this box.  What I'd recommend / propose, is that you take the hostname and IP address, give it to IS&T (unless that's you), at your workplace, and let them find said machine and investigate it.  If your work has wifi, then it would be assumed that someone there would be capable of locating the box in question.  If not, I think it's time they contract someone who can.

Honestly wondered the same, but as there's been no further reply / info given...

OK.  Well, if further info comes up, or more specific questions arise, we'll see what help we can provide, at that time.

t3st,

assuming by wifi analyser you mean the wireless tool by Farpoc?

I use the same tool, as it's essentially a wireless spectrum analyser similar to aircrack/kismet/etc, My guess is CandC is merely a SSID of a neighbouring AP and (hopefully) not a direct threat to your environment.

Maybe it's for multiplayer Command and Conquer games.

Legitimate attackers would probably be more discreet. I'm personally more suspicious of "Free WiFi" SSIDs