Regin is the story of a global cyberattack mechanism on a massive scale. Researchers believe it may have been developed by the team behind the ever notorious Stuxnet worm. Regin has been found to attack computers in the following countries, that I’ve listed in order of infection frequency: Russia, Saudi Arabia, Ireland, Mexico, India, Pakistan, Belgium, Austria, Afghanistan, and Iran. The first stage is usually the only component that can be found on a victim’s Windows machine as malware. The purpose of Regin’s stage one malware is to load the second stage.”]
Source: https://www.csoonline.com/article/2853778/no-ordinary-mobile-attack-the-regin-menace.html