Sophos

Troj/Bdoor-AZW

Aliases
  • BackDoor-AZV
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 14 December 2004 06:48:30 (GMT)
Detected by All Sophos products
  • Endpoint Security and Control 9.0
  • Small business solutions 4.0

Action

Please follow the instructions for removing Trojans.

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
Apvxdwin
load32.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\Run\
Apvxdwin
load32.exe

and delete it if it exists.

Close the registry editor.

More Information

Troj/Bdoor-AZW is an IRC backdoor Trojan for the Windows platform.

When executed the Trojan moves itself to <System>\load32.exe and attempts to connect to a predefined IRC channel.

Troj/Bdoor-AZW creates the following autostart registry entries:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Apvxdwin
load32.exe

HKLM\Software\Microsoft\Windows\CurrentVersion\Run
Apvxdwin
load32.exe

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