[virusinfo] W32/Sdbot-ZM
- From: "Mike" <mikebike@xxxxxxxxx>
- To: virusinfo@xxxxxxxxxxxxx
- Date: Thu, 23 Jun 2005 18:41:10 -0700
From: Sophos Alert System:
Name: W32/Sdbot-ZM
Aliases: Backdoor.Win32.SdBot.yx
Type: Win32 worm
Date: 24 June 2005
Sophos has issued protection for W32/Sdbot-ZM.
At the time of writing, Sophos has received a small number of
reports of this worm from the wild.
Customers using EM Library, Enterprise Console, PureMessage or
any of our Sophos small business solutions will be automatically
protected at their next scheduled update.
Note: The IDE issued for W32/Sdbot-ZM at 04:54 (GMT) on 17 June
2005
also contained detection for Troj/Delbot-E, W32/Mytob-BN,
W32/Mytob-BO, W32/Mytob-BP and W32/Mytob-BM .
This IDE has now been updated to enhance detection
of W32/Mytob-BN.
Information about W32/Sdbot-ZM can be found at:
http://www.sophos.com/virusinfo/analyses/w32sdbotzm.html
W32/Sdbot-ZM is a network worm with backdoor Trojan functionality for the
Windows platform.
When first run, W32/Sdbot-ZM copies itself to the Windows system folder as
nawdll32.exe and creates the following registry entries in order to run each
time a user logs on:
HKLM\SOFTWARE\Microsoft\Ole
nawdll32
"nawdll32.exe"
HKLM\SYSTEM\CurrentControlSet\Control\Lsa
nawdll32
"nawdll32.exe"
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
nawdll32
"nawdll32.exe"
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce
nawdll32
"nawdll32.exe"
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
nawdll32
"nawdll32.exe"
HKCU\Software\Microsoft\OLE
nawdll32
"nawdll32.exe"
HKCU\System\CurrentControlSet\Control\Lsa
nawdll32
"nawdll32.exe"
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
nawdll32
"nawdll32.exe"
HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce
nawdll32
"nawdll32.exe"
HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
nawdll32
"nawdll32.exe"
The worm spreads through network shares protected by weak passwords, MS-SQL
servers and through various operating system vulnerabilities.
W32/Sdbot-ZM connects to a predetermined IRC channel and awaits further
commands from remote users. The backdoor component of W32/Sdbot-ZM can be
instructed to perform the following functions:
scan networks for vulnerabilities
download/execute arbitrary files
start an ftp server
Patches for the vulnerabilities exploited by W32/Sdbot-ZM can be obtained from
Microsoft at:
http://www.microsoft.com/technet/security/bulletin/MS02-039.mspx
http://www.microsoft.com/technet/security/bulletin/MS04-011.mspx
http://www.microsoft.com/technet/security/bulletin/MS04-012.mspx
The W32/Sdbot-ZM virus identity file (IDE) includes detection for:
Troj/Delbot-E
http://www.sophos.com/virusinfo/analyses/trojdelbote.html
W32/Mytob-BN
http://www.sophos.com/virusinfo/analyses/w32mytobbn.html
W32/Mytob-BO
http://www.sophos.com/virusinfo/analyses/w32mytobbo.html
W32/Mytob-BP
http://www.sophos.com/virusinfo/analyses/w32mytobbp.html
W32/Mytob-BM
http://www.sophos.com/virusinfo/analyses/w32mytobbm.html
Customers with 3.xx or lower versions of Sophos Anti-Virus,
who are not running EM Library, can manually download the IDE
for W32/Sdbot-ZM from:
http://www.sophos.com/downloads/ide/sdbot-zm.ide
Read about how to use IDE files at
http://www.sophos.com/support/knowledgebase/article/363.html
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