Iran devours itself.
So, what we are suggesting here...is Larry Muhammad and Marvin Muhammad who were the IT guys at the nuke plant...and probably were lowly paid guys like most IT department have, and they both had 33k songs on some supped-up external hard-drive, which they just happened to buy from some guy in Bahrain when they went over for a beer-holiday last year. Thus, it all makes sense in how the virus arrived...via the evil collection of songs picked up. Just my humble guess.