Affected Operating Systems
Recovery Instructions:
Please follow the instructions for removing Trojans.
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\Socket Utility
HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce\Socket Utility
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\Socket Utility
and delete them if they exist.
Locate the HKEY_LOCAL_MACHINE entry:
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell
it should contain a reference to explorer.exe (or possibly NALWIN32.exe if you are using NetWare) only. Remove any reference to any file you deleted. You may need to replace the reference to explorer.exe.
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\Socket Utility
HKU\[code number]\Software\Microsoft\Windows\
CurrentVersion\RunOnce\Socket Utility
HKU\[code number]\Software\Microsoft\Windows\
CurrentVersion\RunServices\Socket Utility
and delete them if they exist.
Close the registry editor.