Intercept X and End Point Protection VS DoublePulsar

I'd like to know the answer to this as well...

Mr. Dillon tested all the major antivirus products against the DoublePulsar infection and a demoralizing 99 percent failed to detect it.

https://www.nytimes.com/2017/06/22/technology/ransomware-attack-nsa-cyberweapons.html 

https://www.htbridge.com/blog/eight-things-you-should-know-about-wannacrypt.html 


"8) AV giant Sophos was forced to row back from its original statement that "NHS is totally protected with Sophos" to the less committing "Sophos understands the security needs of the NHS" after the weekend’s events. The company tweeted a ‘how to prevent ransomware’ primer just hours before the attacks began."