[virusinfo] W32/Kelvir-F

  • From: "Mike" <mikebike@xxxxxxxxx>
  • To: virusinfo@xxxxxxxxxxxxx
  • Date: Tue, 29 Mar 2005 13:12:30 -0800

From; Sophos Alert System:

Name: W32/Kelvir-F
Aliases: IM-Worm.Win32.Prex.a
Type: Win32 worm
Date: 29 March 2005

A virus identity (IDE) file which provides protection is
available now from the Sophos website, and will be incorporated
into the May 2005 (3.93) release of Sophos Anti-Virus.

Customers using EM Library, PureMessage or any of our Sophos
small business solutions will be automatically protected at
their next scheduled update.

At the time of writing, Sophos has received a small number of
reports of this worm from the wild.


Information about W32/Kelvir-F can be found at:
http://www.sophos.com/virusinfo/analyses/w32kelvirf.html

W32/Kelvir-F is an instant messaging worm that spreads by sending a message 
through Windows Messenger to all of an infected user's contacts. 
W32/Kelvir-F arrives attached to a message that encourages the recipient to 
visit a web page to download a file. The message text is randomly chosen from 
the following: 
hey check this out I almost pee'd my pants <URL>
wow, i almost fell off the chair when i saw this <URL>
haha i just found the funniest drawing, check it out <URL>
wow, this drawing makes you feel like your on some type of drug <URL>
crazy, its like a virtual acidtrip or something, check it out <URL> 
At the time of writing, the file at the URL is named funnyashell.scr and is 
detected by Sophos's anti-virus products as W32/Rbot-ZU. 

This IDE file also includes detection for:

Troj/Multidr-JM
http://www.sophos.com/virusinfo/analyses/trojmultidrjm.html
Troj/Multidr-JN
http://www.sophos.com/virusinfo/analyses/trojmultidrjn.html
Troj/Dloader-KD
http://www.sophos.com/virusinfo/analyses/trojdloaderkd.html
Troj/Multidr-JK
http://www.sophos.com/virusinfo/analyses/trojmultidrjk.html
Troj/Agent-CT
http://www.sophos.com/virusinfo/analyses/trojagentct.html
Troj/Small-DX
http://www.sophos.com/virusinfo/analyses/trojsmalldx.html
W32/Rbot-ZU
http://www.sophos.com/virusinfo/analyses/w32rbotzu.html

Download the IDE file from:
http://www.sophos.com/downloads/ide/kelvir-f.ide

Download all the IDE files available for the current version of 
Sophos Anti-Virus in a single compressed file. The file is
available in two formats:

Zip file:
http://www.sophos.com/downloads/ide/ides.zip

Self-extracting file:
http://www.sophos.com/downloads/ide/ides.exe

Read about how to use IDE files at
http://www.sophos.com/downloads/ide/using.html

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