Sophos

W32/Sdbot-CLH

Aliases
  • W32/Sdbot.worm.gen.m
  • WORM_SDBOT.CLH
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 24 October 2005 08:17:51 (GMT)
Detected by All Sophos products
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Action

More Information

W32/Sdbot-CLH is a worm and IRC backdoor Trojan for the Windows platform.

W32/Sdbot-CLH runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels.

When first run W32/Sdbot-CLH copies itself to <System>\msviral.exe and creates the file \%CurrentFolder%\aspr_keys.ini.

The following registry entries are created to run msviral.exe on startup:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Microsoft Viral Scanning Protection
msviral.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Microsoft Viral Scanning Protection
msviral.exe

HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
Microsoft Viral Scanning Protection
msviral.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Microsoft Viral Scanning Protection
msviral.exe

Registry entries are set as follows:

HKCU\SYSTEM\CurrentControlSet\Control\Lsa
Microsoft Viral Scanning Protection
msviral.exe

HKLM\SYSTEM\CurrentControlSet\Control\Lsa
Microsoft Viral Scanning Protection
msviral.exe

HKCU\Software\Microsoft\OLE
Microsoft Viral Scanning Protection
msviral.exe

HKLM\SOFTWARE\Microsoft\Ole
Microsoft Viral Scanning Protection
msviral.exe

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