W32/Sdbot-UN

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 entry:

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

and remove any reference to any file you deleted.

Close the registry editor.

W32/Sdbot-UN is a worm with backdoor functionality.

W32/Sdbot-UN may spread to remote network shares with weak passwords.

W32/Sdbot-UN connects to a predetermined IRC channel and runs in the background listening for backdoor commands. W32/Sdbot-UN is a worm with backdoor functionality.

W32/Sdbot-UN may spread to remote network shares with weak passwords.

W32/Sdbot-UN connects to a predetermined IRC channel and runs in the background listening for backdoor commands.

W32/Sdbot-UN copies itself to the Windows system folder as SDKC55REZZZ2.EXE and creates the following registry entries in order to run itself on system startup:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run
SDKz0r
SDKc55rezzz2.exe

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices
SDKz0r
SDKc55rezzz2.exe

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
SDKz0r
SDKc55rezzz2.exe