Dear Microsoft Customer,

On August 11, 2003, Microsoft began investigating a report of a worm, known as W32.Blaster.Worm, that exploits the vulnerability addressed by Microsoft Security Bulletin MS03-026. Microsoft released this critical security bulletin and corresponding patch for Windows operating systems on July 16, 2003. While some customers may not notice the presence of the worm infection at all on their computer systems, typical symptoms may include Windows XP and Windows Server 2003 systems rebooting every few minutes without user input or Windows NT4 and Windows 2000 systems becoming unresponsive.

If you applied security patch MS03-026 prior to the discovery of the Blaster worm, your system is secure from the vulnerability that W32.Blaster is using. For the most current information on determining if your systems are infected and how to recover from the infection, please go to the following Web site and perform the prescribed steps: http://go.microsoft.com/?linkid=221455. This site will be updated as more information regarding the W32.blaster worm becomes available.
 
Our goal is to provide you with the information and tools you need to help run your company safely and reliably. When we become aware of these types of vulnerabilities, it is our goal to share protection and remediation information with you as quickly as is possible. In order to help protect your computing environment from security vulnerabilities, we encourage you to use the Windows Update service by going to http://go.microsoft.com/?linkid=221456 and also subscribe to Microsoft's security notification service at http://go.microsoft.com/?linkid=221457. By using these two services you will automatically receive information on the latest software updates and the latest security notifications, thereby improving the likelihood that your computing environment will be safe from the worms and viruses that occur.
 
Thank you,

Microsoft Corporation

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