NSA/GCHQ/CSEC Infecting Innocent Computers Worldwide

There's a new story on the c't magazin website about a 5-Eyes program to infect computers around the world for use as launching pads for attacks. These are not target computers; these are innocent third parties.
The article actually talks about several government programs. HACIENDA is a GCHQ program to port-scan entire countries, looking for vulnerable computers to attack. According to the GCHQ slide from 2009, they've completed port scans of 27 different countries and are prepared to do more.
The point of this is to create ORBs, or Operational Relay Boxes. Basically, these are computers that sit between the attacker and the target, and are designed to obscure the true origins of an attack. Slides from the Canadian CSEC talk about how this process is being automated: "2-3 times/year, 1 day focused effort to acquire as many new ORBs as possible in as many non 5-Eyes countries as possible." They've automated this process into something codenamed LANDMARK, and together with a knowledge engine codenamed OLYMPIA, 24 people were able to identify "a list of 3000+ potential ORBs" in 5-8 hours. The presentation does not go on to say whether all of those computers were actually infected.
Slides from the UK's GCHQ also talk about ORB detection, as part of a program called MUGSHOT. It, too, is happy with the automatic process: "Initial ten fold increase in Orb identification rate over manual process." There are also NSA slides that talk about the hacking process, but there's not much new in them.
The slides never say how many of the "potential ORBs" CSEC discovers or the computers that register positive in GCHQ's "Orb identification" are actually infected, but they're all stored in a database for future use. The Canadian slides talk about how some of that information was shared with the NSA.
Increasingly, innocent computers and networks are becoming collateral damage, as countries use the Internet to conduct espionage and attacks against each other. This is an example of that. Not only do these intelligence services want an insecure Internet so they can attack each other, they want an insecure Internet so they can use innocent third parties to help facilitate their attacks.
The story contains formerly TOP SECRET documents from the US, UK, and Canada. Note that Snowden is not mentioned at all in this story. Usually, if the documents the story is based on come from Snowden, the reporters say that. In this case, the reporters have said nothing about where the documents come from. I don't know if this is an omission -- these documents sure look like the sorts of things that come from the Snowden archive -- or if there is yet another leake