And I hate the "I can't imagine how to do this, so it's not possible" argument.

We have syslogs going back 7 years. You want to come audit our network? I'll bet you all of the money in my bank account that you find nothing.

> with the usual suspects--Java, Flash, Adobe Reader, etc...

Nobody in my house runs those.

> It's all about staying on the machine, and staying silent.

They have to communicate over the network at some point though. Otherwise, it'd be useless.

So yeah - as far as I know - and that's pretty damn far.