W32/Spybot-CZ

Please follow the instructions for removing worms.

Change any data that may have become compromised.

Windows NT/2000/XP/2003

In Windows NT/2000/XP/2003 you will also need to edit the following registry entries. The removal of these entries is optional in Windows 95/98/Me. 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 entry:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
System32Dll = DLL32SYS.EXE

and delete it if it exists.

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

HKU\[code number]\Software\Microsoft\Windows\
CurrentVersion\RunOnce\System32Dll = DLL32SYS.EXE

and delete it if it exists.

Close the registry editor.

W32/Spybot-CZ is a network worm with backdoor Trojan functionality.

W32/Spybot-CZ attempts to copy itself to DLL32SYS.EXE in the Windows system folder and creates entries in the registry at the following locations to run itself on system restart:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
System32Dll = DLL32SYS.EXE

HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce\
System32Dll = DLL32SYS.EXE

W32/Spybot-CZ remains resident, running in the background as a service process and listening for commands from remote users via IRC channels.

W32/Spybot-CZ attempts to terminate various monitoring programs as well as logging keystrokes and stealing passwords.