Sophos

W32/Sdbot-ZO

Aliases
  • BKDR_SDBOT.MF
  • W32/Sdbot.worm.gen.bj
  • Backdoor.Win32.SdBot.gen
Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Network shares
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from September 2005 (3.97)
Protection available since 19 June 2005 15:14:29 (GMT)
Last updated 25 July 2005 14:27:53 (GMT)
Detected by All Sophos products

Action

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.

Close the registry editor.

More Information

W32/Sdbot-ZO is a worm and IRC backdoor Trojan for the Windows platform.

W32/Sdbot-ZO spreads across network shares protected by weak passwords.

W32/Sdbot-ZO 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-ZO is a worm and IRC backdoor Trojan for the Windows platform.

W32/Sdbot-ZO spreads across network shares protected by weak passwords.

W32/Sdbot-ZO 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.

When first run W32/Sdbot-ZO copies itself to <System>\burndl32.exe.

The following registry entries are created to run W32/Sdbot-ZO on startup:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
System settings
burndl32.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
System settings
burndl32.exe

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