A purported key to decrypt wannacry has been created and is said to work on XP, Win 7, Server 2003 & 2008.
“Good news is that another security researcher, Benjamin Delpy, developed an easy-to-use tool called "WanaKiwi," based on Guinet's finding, which simplifies the whole process of the WannaCry-infected file decryption.
All victims have to do is download WanaKiwi tool from Github and run it on their affected Windows computer using the command line (cmd).
https://thehackernews.com/2017/05/wannacry-ransomware-decryption-tool.html?amp=1&m=1”