Based on the prevalence of Spanish-speaking victims, the number of infected victims in Morocco, and the fact that Gibraltar is on the list, that implies Spain is behind this one. My guess is that soon countries will start infecting uninteresting targets in order to deflect blame, but that they still think they’re immune from discovery. So Spain, if it is you, attack a few sites in the Falklands next time -- and use a separate tool for Morocco.
https://www.schneier.com/blog/archiv...sk_espion.html