Sophos

W32/Sdbot-AGB

Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Chat programs
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 10 December 2005 08:12:35 (GMT)
Detected by All Sophos products
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Action

More Information

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

W32/Sdbot-AGB 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-AGB copies itself to <System>\msnchecker.exe.

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

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
MSN Checker
msnchecker.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
MSN Checker
msnchecker.exe

HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
MSN Checker
msnchecker.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
MSN Checker
msnchecker.exe

Registry entries are set as follows:

HKCU\SYSTEM\CurrentControlSet\Control\Lsa
MSN Checker
msnchecker.exe

HKLM\SYSTEM\CurrentControlSet\Control\Lsa
MSN Checker
msnchecker.exe

HKCU\Software\Microsoft\OLE
MSN Checker
msnchecker.exe

HKLM\SOFTWARE\Microsoft\Ole
MSN Checker
msnchecker.exe

W32/Sdbot-AGB may attempt to spread via AOL Instant Messenger.

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