North Korea Again? What happened to six hundred hackers?
This is the same regime that loves to mess with South Korean heads routinely. It's also the same regime that has no visible lights at night time...
http://www.globalsecurity.org/military/world/dprk/dprk-dark.htm
As for spyware e-mail sent to South Korean officers, if the ROK military's computers are as woefully administered as this suggests, I think they have far worse problems than spyware.