Sophos

Troj/Dloadr-TG

Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from June 2006 (4.06)
Protection available since 10 April 2006 20:07:30 (GMT)
Detected by All Sophos products

Action

More Information

Troj/Dloadr-TG is a Trojan for the Windows platform.

Troj/Dloadr-TG includes functionality to download, install and run new software.

Troj/Dloadr-TG may also log key presses and steal information.

When Troj/Dloadr-TG is installed, the Trojan attempts to download the following files from a remote site and run them:

<Windows folder>\Messenger.exe
<Windows folder>\Update.exe
<Windows folder>\Version.txt

At the time of writing, these files were unavailable for download.

The following registry entry is created to run Messenger.exe on startup:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Yahoo!!!
<Windows folder>\Messenger.exe

Troj/Dloadr-TG changes the Start Page for Microsoft Internet Explorer by setting the registry entry:

HKCU\Software\Microsoft\Internet Explorer\Main\Start Page

The following registry entry is set, disabling the registry editor (regedit):

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableRegistryTools
1

Registry entries are created under:

HKCU\Software\Yahoo\pager\View\YMSGR_Launchcast\
HKCU\Software\Yahoo\pager\View\YMSGR_buzz\

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