Chris13 - 4:19 am on Mar 21, 2013 (gmt 0)

Why did the BBC report this and not Google, the biggest net advertising company online?

The BBC is a new agency that attracts readers by being the first to report things. Why would they tell Google about it before getting the readership from announcing it?

The bot may or may not have targeted Google adsense and adwords.

Also, why did they not reveal the company behind the botnet?

The person, persons or company behind the attack may not be known at this time. And, it may have nothing to do with any company. Could just as easily be an individual and most likely was written by one person.

It will take some investigating to track down where the money ended up.