[lucb1e]

Well look what the author did: just scan the whole country. And I personally know people who scanned the whole Internet on certain ports (so that's not that big a deal). I would be surprised if North Korea didn't do entire Internet sweeps themselves.

[internetisthesh]

That's why I wondered if other people saw the same pattern.

Not sure why they would sweep the Internet themselves though. If they want to know what OS:es are used there's already statistics for that.