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[ISSForum] ISS Security Brief: MyDoom Mass-Email Worm


Internet Security Systems Security Brief
January 26, 2004

MyDoom Mass-Email Worm


ISS X-Force has detected the aggressive propogation of a new Internet worm
that spreads via email. Known as MyDoom or Novarg, this worm harvests
email addresses from your hard drives and will mail copies of itself to
addresses that it finds. It spoofs the "From" address to confuse victims
as to the source of the virus. MyDoom spreads as an e-mail attachment that
is either in an executable or zip archive format.


Aggressive propagation of mass-email worms have been known to cause
localized email outages due to the load placed on email servers. MyDoom
has been spreading very aggressively and is a serious threat to certain
networks. It is also believed that this worm contains a proxy that may 
allow the infected computer to relay "spam" email.

For the complete ISS X-Force Security Alert, please visit: 


About Internet Security Systems (ISS) 
Founded in 1994, Internet Security Systems (ISS) (Nasdaq: ISSX) is a 
pioneer and world leader in software and services that protect critical 
online resources from an ever-changing spectrum of threats and misuse. 
Internet Security Systems is headquartered in Atlanta, GA, with 
additional operations throughout the Americas, Asia, Australia, Europe 
and the Middle East. 

Copyright (c) 2003 Internet Security Systems, Inc. All rights reserved 

Permission is hereby granted for the electronic redistribution of this 
document. It is not to be edited or altered in any way without the 
express written consent of the Internet Security Systems X-Force. If you 
wish to reprint the whole or any part of this document in any other 
medium excluding electronic media, please email xforce@xxxxxxx for 

Disclaimer: The information within this paper may change without notice. 
Use of this information constitutes acceptance for use in an AS IS 
condition. There are NO warranties, implied or otherwise, with regard to 
this information or its use. Any use of this information is at the 
user's risk. In no event shall the author/distributor (Internet Security 
Systems X-Force) be held liable for any damages whatsoever arising out 
of or in connection with the use or spread of this information. 
X-Force PGP Key available on MIT's PGP key server and PGP.com's key server, 
as well as at http://www.iss.net/security_center/sensitive.php 
Please send suggestions, updates, and comments to: X-Force 
xforce@xxxxxxx of Internet Security Systems, Inc. 

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