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This question was answered on May 3, 2004. Much of the information contained herein may have changed since posting.

A variant worm found on May 1st has already risen to a category 4 and has a very high distribution rating on the SARC site. This new threat is a self-replicating, self-installing worm that has nothing to do with e-mail. W32.Sasser.B attempts to exploit a vulnerability in Microsoft Windows and spread by scanning randomly-chosen IP addresses for vulnerable systems. It is thought to infect home users more than corporate users, however, this may change at any given moment.

The primary symptoms for infected machines include the inability to shutdown the system, a performance decrease, or a 60 second countdown that forces the system to shutdown. Microsoft Windows 2000 & XP are the only operating systems affected by this dangerous worm. The W32.Sasser family of worms can run on (but not infect) Windows 95/98/Me computers, however these infected OS's can still be used to infect systems that they are able to connect to.

FOR THE TECHNICALLY INCLINED:

If you have a system that is already infected by this worm, then download the removal tool at:<a href="http://datadr.com/redir.cfm/W32_SasserB_removal">

>http://datadr.com/redir.cfm/W32_SasserB_removal</a>

For optimal security it is suggested that you update your anti-virus software. You can get more technical information about this outbreak & removal instructions at:

<a href="http://datadr.com/redir.cfm/W32_Sasser_B/"> http://datadr.com/redir.cfm/W32_Sasser_B/</a>

For more detailed information from Microsoft, check out:

<a href="http://www.microsoft.com/security/incident/sasser.asp"> http://www.microsoft.com/security/incident/sasser.asp</a>

FOR THOSE NOT TECHNICALLY INCLINED:

Contact your nearest Data Doctors location for service:

http://datadoctors.com/contact/

Fast Spreading Worm Attacks - Variant W32.Sasser.B.Worm!

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