W32/Sdbot-PG

Please follow the instructions for removing worms.

Check your administrator passwords and review network security.

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-PG is a worm with IRC backdoor functionality. The worm runs in the background as a service process and allows unauthorised remote access via IRC channels.

Sophos anti-virus products since version 3.84 have been capable of detecting this worm as W32/Sdbot-Fam without requiring an update. W32/Sdbot-PG is a worm with IRC backdoor functionality. The worm runs in the background as a service process and allows unauthorised remote access via IRC channels.

When run the worm copies itself to the Windows system folder as CASD.EXE and creates the following registry entries so as to run automatically on user logon or computer startup:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
SettingValue = casd.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
SettingValue = casd.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
SettingValue = casd.exe

W32/Sdbot-PG will attempt to copy itself to network shares with weak passwords, partake in DoS attacks, allows remote HTTP requests and downloads and runs files from the internet when instructed to do so by a remote attacker.

The worm will also attempt to exploit the DCOM vulnerability.

Sophos anti-virus products since version 3.84 have been capable of detecting this worm as W32/Sdbot-Fam without requiring an update.