Sophos

W32/Sdbot-RY

Aliases
  • Backdoor.Win32.SdBot.ry
  • W32/Sdbot.worm.gen.h
Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Network shares
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 7 September 2004 18:10:59 (GMT)
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Action

More Information

W32/Sdbot-RY is a worm and backdoor for the Windows platform.
The worm component attempts to spread to remote network shares and the backdoor allows a malicious user remote access to an infected computer via IRC channels while running in the background as a service process. W32/Sdbot-RY is a worm and backdoor for the Windows platform.
The worm component attempts to spread to remote network shares and the backdoor allows a malicious user remote access to an infected computer via IRC channels while running in the background as a service process.

W32/Sdbot-RY copies itself to the Windows system folder with the filename spoolsvc.exe and in order to run automatically when Windows starts up creates the following registry entries:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
Win32 System Spool=spoolsvc.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce\
Win32 System Spool=spoolsvc.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
Win32 System Spool=spoolsvc.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\Run\
Win32 System Spool=spoolsvc.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce\
Win32 System Spool=spoolsvc.exe.

W32/Sdbot-RY attempts to spread to network machines using various exploits including the LSASS vulnerability (see MS04-011).

W32/Sdbot-RY may function as a proxy server, delete network shares and steal information related to popular games.

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