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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Buchon.B

Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Buchon.B
Technical name:W32/Buchon.B.worm
Threat level:Low
Alias:W32/Netsky.AI.worm
Type:Worm
Effects:  

It spreads via e-mail from October 20 to October 25, 2004.

Affected platforms:

Windows 2003/XP/2000/NT/ME/98/95

First detected on:Oct. 22, 2004
Detection updated on:Oct. 25, 2004
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

Buchon.B is a worm without damaging effects that spreads via e-mail in a message with the subject Mail Delivery failure- and an attached file called MESSAGE TXT LENGTH BYTES MCAFEE.COM.

A funny characteristic of Buchon.B is that it waits ten minutes from the moment it is run until it starts sending infected e-mail messages.

Buchon.B is very similar to Buchon.A. It has been compiled seven hours later, and the ten minutes countdown starts after checking if the system date is between October 20 and 25, 2004.

Visible Symptoms 

    

Buchon.B is easy to recognize, as it reaches the computer in a message with the following characteristics:

  • Subject:
    Mail Delivery failure -
  • Message:
    If the message will not displayed automatically,
    you can check original in attached message.txt

    Failed message also saved at:
    www.
    .com/ inbox/ security/ read.asp?sessionid-3672
    (check attached instructions)

    +++ Attachment: No Virus found
    +++ MC-Afee AntiVirus - www.mcafee.com
  • Attachments:
    MESSAGE TXT LENGTH BYTES MCAFEE.COM