... followed by the tedious process of downloading and waiting for update after update to install, then installing virus and security software, "productivity suites" and any other software that they need, each likely to have its own updates...
Who the hell would do that if they got more than a few machines, update the frekkin image, then clone. Follow up with some polish.
I have never seen any reasonably creative use except for musical toys on pads. Please post examples.
That said, it's not like the ocean is dominated by coelecanth, so it doesn't mean they've reached optimality or anything. Just that they're good enough to continue reproducing and surviving.
I would say that their genes are stuck in a local maxima where they can't evolve. Any mutation dies off or are so different that they leave the area and become a new species.
I would send their packets to a honeypot machine (possible with less security for the giggles) to get more information about the "attac".
In reality they are probably just running foundstone or some other security suite.