Now WannaCry / WannaCrypt ransom malware is pervading worldwide. More than 200,000 computers have been attacked in 99 countries in just two days.
Currently, the SMB protocol has three versions, SMBv1, SMBv2, and SMBv3. And SMBv1 has been outdated for nearly 30 years. WannaCry is using the SMBv1 vulnerability, spreading itself against other computers on the network. The target machine does not have to click open any file. So SMBv1 is not suitable for use in this era.
Closing SMBv1
The process of shutting down SMBv1 in Windows 8.1, Windows 10, Windows Server 2012 R2 and Windows Server 2016 is very easy without technical knowledge. It takes less than 5 minutes to complete.