A Russian government-sponsored group accused of hacking the Democratic National Committee last year has likely been infecting other targets of interest with the help of a potent Windows exploit developed by, and later stolen from, the National Security Agency, researchers said Friday.
Eternal Blue, as the exploit is code-named, is one of scores of advanced NSA attacks that have been released over the past year by a mysterious group calling itself the Shadow Brokers. It was published in April in the group's most damaging release to date. Its ability to spread from computer to computer without any user action was the engine that allowed the WCry ransomware worm, which appropriated the leaked exploit, to shut down computers worldwide in May. Eternal Blue also played a role in the spread of NotPetya, a follow-on worm that caused major disruptions in June.