How many computers are affected on the Internet? @Balgan has identified 1,951,075 Windows 2008 hosts online impacted by ETERNALBLUE...

If you are just tuning in, TLDR; Windows NT, 2000, 2003, XP, Vista, 7, 2008, 8 and 2012 are vulnerable to RCE 0day public exploits/malware.

Microsoft response that ShadowBrokers exploits were patched in the last month updates - MS17-010 ETERNALBLUE -