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A bit over a decade ago I used to spend a lot of time hacking North Korean web infrastructure, I mostly found that they tended to have firewalling around almost all boxes exposed to the global internet and usually had pretty impressive reaction times if you tried to access the country intranet through a compromised web server.
I've always wondered how successful NSA and the likes have been at infiltrating DPRK networks, as it would inherently be fairly easy to detect any sketchy traffic from the outside. I wonder if the recent NYT story essentially confirms that difficulty.
Regarding the NSA and DPRK, there's this document from 2007 least https://www.eff.org/files/2015/02/03/20150117-spiegel-fifth_...
I guess I have a question after all: I'm not exactly clear on how NK treats end-user devices. Do you know if the endpoints used by NK based remote workers have internet and intranet access at the same time? If they do, such an endpoint could offer an easy and stealthy channel to access the intranet.
It's interesting to discover the reality that packet routing ends up following political affiliations. I didn't know North Korea only has 1,024 IPv4 addresses. Do you know why so few IPs? How did they get them?
As far as I know, end-user traffic from within North Korea usually does not originate from those few IP addresses. Or at least not visibly so, they might be connecting to a proxy from a DPRK IP address.
https://github.com/b30wulf/Malware-collection/blob/4f5906c93...
There was also the hacking team leak from years ago and they were selling exploits for north korea's red star OS: https://nkinternet.wordpress.com/wp-content/uploads/2025/12/...
I assume they've been on their networks in the past but i think North Korea has also done a lot over the years to secure their side. it used to be a lot easier when they left everything as an open directory and didn't realize what they were doing.
South Korean NIS was in fact a hacking team client, so it would make sense. Especially considering how terrible Red Star OS was at the time, a HT engineer could probably have whipped those up in a couple of days.
https://web.archive.org/web/20180302155452/http://english.yo...
>I assume they've been on their networks in the past but i think North Korea has also done a lot over the years to secure their side. it used to be a lot easier when they left everything as an open directory and didn't realize what they were doing.
I'm sure they've had some success, but I'd expect it to be a really difficult environment to operate in. Even for the NSA. I suppose eventually there'll be a better leak and we'll get to find out just how well it's been going.
Certainly political affiliations have some influence, but also China and Russia have land borders with North Korea and are not at war. It's very common to run fiber optic on/under railroads and vehicle roads, so there you go. It's probably pretty hard to attract an international cable consortium to land in North Korea given everything, but terrestrial cabling is easier to start with anyway.
> I didn't know North Korea only has 1,024 IPv4 addresses. Do you know why so few IPs? How did they get them?
They would have asked APNIC, the Regional Internet address Registry for their region (Asia-Pacific). I can't find an assignment date, but 175/8 was assigned to APNIC in 2009. 2009 lines up with wikipedia reporting of the startup of the current ISP joint venture.
E.g. I was able to get a /24 in the ARIN region in 2021 and could justify 2 more for a _logical_ network topology similar to what NK presents to the world.
APNIC similarly has a pool available for IPv4 allocations: https://www.apnic.net/manage-ip/ipv4-exhaustion/#the-situati...
[1] as of Nov 2025, approximately 3 million or a little more than 12,000 /24s https://www.apnic.net/manage-ip/ipv4-exhaustion/#how-to-tras...
Some excerpts from a seemingly unreleased Snowden leak (from Dark mirror: Edward Snowden and the American Surveillance State):
> “Why is a scoop of potatoes larger than a scoop of eggs in the cafeteria?” a contributor named Michael wondered one day. Paul jumped in to play the troll. “Let me be the first to down-vote you,” Paul wrote, naming several pedantic reasons. A side debate erupted: should Michael’s post be down-voted, flagged, or removed? Clyde returned to the topic at hand with a facetious theory that scoop volume is proportional to the relative size of potatoes and eggs themselves. In that case, Scott replied, what would happen if “we served eggs that were bigger than potatoes, like of an Ostrich?” Someone proposed a uniform system, “One Spoon to scoop them all,” an homage to Lord of the Rings. Punsters demanded the “inside scoop” and lamented the waste of time on “small potatoes.”
Gotta say, it's pretty disappointing that Gellman, Greenwald, Poltras et. al. have been so stingy with these documents. It's definitely starting to have been long enough for them to just dump everything.