[virusinfo] W32/Sdbot-WN
- From: "Mike" <mikebike@xxxxxxxxx>
- To: virusinfo@xxxxxxxxxxxxx
- Date: Wed, 30 Mar 2005 09:49:41 -0800
From; Sophos Alert System:
Name: W32/Sdbot-WN
Aliases: Backdoor.Win32.IRCBot.ak, W32/Sdbot.worm.gen.t
Type: Win32 worm
Date: 30 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 no reports from
users affected by this worm. However, we have issued this
advisory following enquiries to our support department from
customers.
Information about W32/Sdbot-WN can be found at:
http://www.sophos.com/virusinfo/analyses/w32sdbotwn.html
W32/Sdbot-WN is a worm with backdoor Trojan functionality.
W32/Sdbot-WN spreads to computers on the local network protected by weak
passwords.
When first run, W32/Sdbot-WN copies itself to the Windows system folder as
WINAMP62.EXE and runs this copy of the worm. In order to run each time a user
logs on, W32/Sdbot-WN will set the following registry entries:
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
WinAMP
winamp62.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
WinAMP
winamp62.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices
WinAMP
winamp62.exe
The worm runs continuously in the background providing backdoor access to the
infected computer over IRC channels.
The backdoor component can be used to:
Initiate distributed denial-of-service (DDoS) attacks.
Redirect TCP and SOCKS traffic.
Steal product keys from popular games.
Delete the C$, D$, IPC$ and ADMIN$ shares.
Port scan other computers.
Download and run executable files.
Send emails as specified by the remote user.
W32/Sdbot-WN can alter the following registry entry in order to enable/disable
DCOM:
HKLM\SOFTWARE\Microsoft\Ole\EnableDCOM
This IDE file also includes detection for:
Troj/Small-EA
http://www.sophos.com/virusinfo/analyses/trojsmallea.html
Troj/Small-DZ
http://www.sophos.com/virusinfo/analyses/trojsmalldz.html
W32/Rbot-ZH
http://www.sophos.com/virusinfo/analyses/w32rbotzh.html
Troj/Small-EB
http://www.sophos.com/virusinfo/analyses/trojsmalleb.html
Troj/StartPa-FL
http://www.sophos.com/virusinfo/analyses/trojstartpafl.html
Download the IDE file from:
http://www.sophos.com/downloads/ide/sdbot-wn.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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