Sophos

Troj/Haxdoor-CW

Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Drops more malware
  • Installs itself in the registry
Included in our products from November 2006 (4.11)
Protection available since 28 July 2006 10:21:26 (GMT)
Last updated 18 September 2006 01:14:32 (GMT)
Detected by All Sophos products

Action

More Information

Troj/Haxdoor-CW is a Trojan for the Windows platform.

When Troj/Haxdoor-CW is installed the following files are created:

<System>\kgctini.dat
<System>\lps.dat
<System>\qo.dll
<System>\qo.sys
<System>\ycsrgb.sys
<System>\yvprgb.dll
<System>\yvprgb.sys

The files qo.dll, qo.sys, ycsrgb.sys, yvprgb.dll and yvprgb.sys are detected as
Troj/Haxdor-Fam.

The following registry entries are created to run code exported by yvprgb.dll on
startup:

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\yvprgb
DllName
yvprgb.dll

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\yvprgb
Startup
ERU03Sbfex

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\yvprgb
Impersonate
1

The file ycsrgb.sys is registered as a new system driver service named "ycsrgb",
with a display name of "YVPB video output". Registry entries are created under:

HKLM\SYSTEM\CurrentControlSet\Services\ycsrgb\

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