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Microsoft “WannaCry” Bulletin

Microsoft “WannaCry” Bulletin

You may be already aware that on May 12, 2017 many of Microsoft’s customers around the world and the critical systems they depend on were victims of malicious “WannaCrypt” software. Seeing businesses and individuals affected by cyber attacks, such as the ones reported today, was painful. Microsoft worked throughout the weekend to ensure they understood the attack and they are taking all possible actions to protect our customers.


Microsoft is using this MSRC blog – Customer Guidance for WannaCrypt Attacks to post information and resources in one place, to help customers respond to this latest threat.


The first and most important piece of guidance is to immediately deploy the security update associated with Microsoft Security Bulletin MS17-010, if you have not done so already. Customers that have automatic updates enabled or have deployed this update are already protected from the vulnerability these attacks are trying to exploit.


Malware Detection

Windows Defender, System Center Endpoint Protection, and Forefront Endpoint Protection detect this threat family as Ransom:Win32/WannaCrypt.


In addition, the free Microsoft Safety Scanner is designed to detect this threat as well as many others.



Review the Microsoft Security Response Center (MSRC) blog at Customer Guidance for WannaCrypt Attacks for an overview of the issue, details of the malware, suggested actions, and links to additional resources.


Keep systems up-to-date. Specifically, for this issue, ensure Microsoft Security Bulletin MS17-010 Security Update for Microsoft Windows SMB Server is installed.


Customers who believe they are affected can contact Customer Service and Support by using any method found at this location:


Microsoft Malware Detection and Removal Tools

Use the following free Microsoft tools to detect and remove this threat:

• Windows Defender:
• Microsoft Safety Scanner:


Additional Resources

• Microsoft Security Response Center Blog:
• Microsoft Malware Protection Center Blog:
• Microsoft Safety and Security Center webpage: