This is a VERY nasty booger and if you have not patched your systems you just might be in a world of hurt.
- Microsoft Ransomware Rating - click here
- Microsoft Patch for WannaCrypt (Windows Server 2003 SP2 x64, Windows Server 2003 SP2 x86, Windows XP SP2 x64, Windows XP SP3 x86, Windows XP Embedded SP3 x86, Windows 8 x86, Windows 8 x64) - click here. - Bottom of the page.
WannaCrypt Ransomware - Everything you need to know about the WannaCry / Wcry / WannaCrypt ransomware - Click here.