Sophos

Troj/Puppet-A

Aliases
  • Backdoor-CSR
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from July 2005 (3.95)
Protection available since 8 June 2005 19:42:09 (GMT)
Detected by All Sophos products

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\

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.

More Information

Troj/Puppet-A is a Trojan for the Windows platform.

The Trojan connects to a preconfigured IRC server and joins a channel in which it can await further instructions. These instructions can cause the Trojan to join other channels and send messages to other users. Troj/Puppet-A is a Trojan for the Windows platform.

The Trojan connects to a preconfigured IRC server and joins a channel in which it can await further instructions. These instructions can cause the Trojan to join other channels and send messages to other users.

When Troj/Puppet-A is installed the following files are created:

<Windows system folder>\boot.exe (detected as Troj/Puppet-A)
<Windows system folder>\rtl60.bpl (clean)

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

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
boot
<Windows system folder>\boot.exe

HKLM\Software\Microsoft\Windows\CurrentVersion\Run
boot
<Windows system folder>\boot.exe

During installation, Troj/Puppet-A displays the following error messages:

Caption: Hype 1.02 Setup
Message: vml60.bvl not found!

Caption: Hype 1.02 Setup
Message: Installation aborted!

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