*** Only clients host under Ares cluster will be affected ***
Start Date/Time: 18th May 2017, 8.00 PM MYT
End Date/Time: 19th May 2017, 6.00 AM MYT
Following the recent Microsoft official announcement Microsoft Security Bulletin MS17-010 - Critical, this security update resolves vulnerabilities in Microsoft Windows which is victims of malicious “WannaCrypt” software.
For further reference about the vulnerabilities:
(A) What Do You Need To Know About This Update?
kindly refer to the official blog by Microsoft:
(B) General information on ransomware:
Ransomware stops you from using your PC. It holds your PC or files for "ransom".
Here is the sample of ransom demand shown on infected machines (image credit to Talos )
(C) Recommended Action: Ensure all Windows-based systems are fully patched and SMB ports (139, 445) blocked from all externally accessible hosts.
(D) Recommended preparation: We recommend all users to run a full data backup for their web files and databases to their local desktop/laptop/external drive before any server reboot.
Our team will perform several reboot during the Windows server updating process and all services will not be available during the reboot.
Technical Support Department