W32/Sdbot-ZY

Please follow the instructions for removing worms.

Change any data that may have become compromised.

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-ZY is a worm and IRC backdoor Trojan for the Windows platform.

W32/Sdbot-ZY spreads by copying itself to network shares protected by weak passwords.

W32/Sdbot-ZY 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.

W32/Sdbot-ZY includes functionality to:

- steal confidential information
- carry out DDoS flooder attacks
- silently download, install and run new software, including updates of its software

When first run W32/Sdbot-ZY copies itself to <System>\poker.exe.

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

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Microsoft Windows DLL Services Configuration
poker.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Microsoft Windows DLL Services Configuration
poker.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Microsoft Windows DLL Services Configuration
poker.exe