[virusinfo] W32/Sdbot-MV

  • From: "Mike" <mikebike@xxxxxxxxx>
  • To: virusinfo@xxxxxxxxxxxxx
  • Date: Tue, 18 May 2004 07:29:08 -0700


From; Sophos Alert System:

Name: W32/Sdbot-MV
Type: Win32 worm
Date: 18 May 2004

A virus identity (IDE) file which provides protection is
available now from the Sophos website, and will be incorporated
into the July 2004 (3.83) release of Sophos Anti-Virus.

Customers using Enterprise Manager, PureMessage and any of the
Sophos small business solutions will be automatically protected
at their next scheduled update.


At the time of writing, Sophos has received just one report of
this worm from the wild.


Information about W32/Sdbot-MV can be found at:
http://www.sophos.com/virusinfo/analyses/w32sdbotmv.html
Description 
W32/Sdbot-MV is an IRC backdoor Trojan and network worm. 
W32/Sdbot-MV copies itself to network shares protected by weak passwords. 

When first run W32/Sdbot-MV copies itself to the Windows system folder as
alien.exe and creates the following registry entries to ensure it is run at
system logon: 

HKCU\Software\Microsoft\Windows\CurrentVersion\Run\
Microsoft Synchronization Manager = alien.exe 

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
Microsoft Synchronization Manager = alien.exe 

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
Microsoft Synchronization Manager = alien.exe 

Each time W32/Sdbot-MV is run it attempts to connect to a remote IRC server
and join a specific channel. The worm then runs in the background allowing a
remote intruder to issue commands which control the computer via IRC
channels.
Commands include downloading and executing remote files. 

The worm also logs keystrokes to the file keylog.txt created in the Windows
system folder. This file is not malicious and can be deleted. 
 
 
Recovery 
Please follow the instructions for removing worms 

This IDE file also includes detection for:

Troj/Satanbrn-A
http://www.sophos.com/virusinfo/analyses/trojsatanbrna.html
Troj/DLoader-HB
http://www.sophos.com/virusinfo/analyses/trojdloaderhb.html
W32/SdBot-IN
http://www.sophos.com/virusinfo/analyses/w32sdbotin.html
Troj/Padodor-C
http://www.sophos.com/virusinfo/analyses/trojpadodorc.html
W32/Agobot-IS
http://www.sophos.com/virusinfo/analyses/w32agobotis.html
Troj/Bckdr-UJ
http://www.sophos.com/virusinfo/analyses/trojbckdruj.html
Troj/Dumaru-AJ
http://www.sophos.com/virusinfo/analyses/trojdumaruaj.html
Troj/Kango-A
http://www.sophos.com/virusinfo/analyses/trojkangoa.html

Download the IDE file from:
http://www.sophos.com/downloads/ide/sdbot-mv.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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