Except there aren't to many Magellans left.
What about a possible sabotaged program or worm fitted to the old DRUM Network?
Not sure about how many
Magellans were built to begin with, and how many are left. But apparently, not too few either. After all, we've seen a vessel dubbed "
Magellan MkII" with a big honkin' Spirit Cat logo on the jump sail. Official word is that it's not a full-blown new ship type but rather a variant of the
Magellan class. In any case, if enough existed to dub them "Mk II" the overall impression is that there is still a good number out there.
As for a virus distributed by DRUM or similar satellites: I doubt it.
Remember how the HPG network works. It's not a WLAN. The links are not bidirectional. Every HPG sends its information as a radio wave that is "jumped" to a certain point in space. Could be a jump point, or the known location of a fleet. Or a ComStar receiver room on a planet. But not another HPG. They don't connect to each other, they don't do handshakes for protocols. They are just one-way transmitters.
So in order for malware from within the network to affect a new HPG, the sending (infected) HPG would have to know exactly where the receiving HPG is, plus there would have to be some connection to the operating system (as opposed to merely the data stream being handled). That's so unlikely as to be essentially impossible for newly-built HPGs fired up for test purposes.