WannaCry ransomware outbreak anniversary one year ago, on May 12, the Wannacry ransomware infected hundreds of thousands of computers worldwide. The success of the malware was the use of the EternalBlue exploit that was stolen by Shadow Brokers from the arsenal of the US National Security Agency along with a large cache of tools and exploits. The tools work against almost all versions of Windows, from Windows 2000 and XP to Windows 7 and 8, and Server 2000, 2003, 2008, 2008 and 2012, except Windows 10 and Windows Server 2016.”]
Source: https://securityaffairs.co/wordpress/72409/hacking/eternalblue-exploit-popularity.html