The “WannaCry” virus has infected numerous computers around the world. The WannaCry virus can infect a server or desktop without any end user interaction. According to White House homeland security adviser Tom Bossert, more than 300,000 computers have been infected.

This virus impacts most modern Microsoft Windows Operating Systems.

How to prevent “WannaCry” virus

Run Windows Update

If you use Microsoft Windows as your desktop or server operating system, please run Microsoft Windows Update. Patching your Microsoft Windows Operating system is the easiest way to protect yourself. Microsoft has taken the rare step of issuing a fix for versions of Windows it no longer supports, which includes specific fixes for Windows XP, Windows 7, Windows 8, and Windows Server 2003.

Disable SMBv1

“WannaCry” Virus attacks a bug in SMB (file sharing). Disabling SMBv1 is easy. It takes less than 5 minutes to do, no reboot required on most servers, and Microsoft has recommended it.

Here is a link for specific instructions to disable SMBv1: Specific instructions to disable SMBv1

Block ports 445 and 139 (SMB ports) on your firewall

Please ensure your firewall blocks ports 445 and 139 (SMB ports).

Although the WannaCry ransomware has stopped spreading, the delivery mechanism is incredibly easy to adapt into a new ransomware or worm.

If infected with WannaCry:

Do not pay the fee!  Apparently, the team that released this is not responding to payments because they cannot keep up with them.

Do not delete your data!  There is a possibility someone will be able to build a de-encryptor for this.

At Ferrilli security is never secondary, if you need assistance please call our 24/7 emergency services phone number 888.864.3282.