W32/Sdbot-ABJ

Please follow the instructions for removing worms.

You will also need to edit the following registry entries, if they are present. Please read the warning about editing the registry.

At the taskbar, click Start|Run. Type 'Regedit' and press Return. The registry editor opens.

Before you edit the registry, you should make a backup. On the 'Registry' menu, click 'Export Registry File'. In the 'Export range' panel, click 'All', then save your registry as Backup.

Locate the HKEY_LOCAL_MACHINE entries:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices

and remove any reference to any file you deleted.

Each user has a registry area named HKEY_USERS\[code number indicating user]\. For each user locate the entries:

HKU\[code number]\Software\Microsoft\Windows\
CurrentVersion\Run\

HKU\[code number]\Software\Microsoft\Windows\
CurrentVersion\RunServices\

and remove any reference to any file you deleted.

Close the registry editor.

W32/Sdbot-ABJ is a worm with backdoor functionality for the Windows platform.

W32/Sdbot-ABJ 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-ABJ copies itself to <Windows system folder>\aolfix.exe.

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

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
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aolfix.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
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aolfix.exe

HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
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aolfix.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
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aolfix.exe

Registry entries are set as follows:

HKLM\SOFTWARE\Microsoft\Ole
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aolfix.exe

HKLM\SYSTEM\CurrentControlSet\Control\Lsa
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aolfix.exe