Bang on Iain! As much as the example in the blog post works, getting c2 over any form of filesystem, is the real gem here.
Even locally for privesc, get a system shell without worrying about proxies for example.
Looking forward to see what folk come up with use case wise.
This is such a cool C2 channel technique. Use network file share, RDP mapped drives and anywhere else more than one host sees the same filesystem as a C2 channel which really doesn't get logged. Simple but effective!