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Troj/BHO-DC

Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 9 August 2007 14:53:40 (GMT)
Detected by All Sophos products
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Action

More Information

Troj/BHO-DC is a Trojan for the Windows platform.

Troj/BHO-DC includes functionality to access the internet and communicate with a remote server via HTTP.

When Troj/BHO-DC is installed the following files are created:

<Temporary Internet Files>\Content.IE5\od6fwfox\bc1[1].htm
<Program Files>\Google\googletoolbar1.dll

The file googletoolbar1.dll is detected as Mal/Behav-004.

The following registry entry is created to run Troj/BHO-DC on startup:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
crtfmon
<pathname of the Trojan executable>

The file googletoolbar1.dll is registered as a COM object and Browser Helper Object (BHO) for Microsoft Internet Explorer, creating registry entries under:

HKCR\CLSID\{2318C2B1-4965-11d4-9B18-009027A5CD4F}
HKCR\Interface\{DA4DEAB2-9BAE-41DE-83EA-0916180F8AE4}
HKCR\TypeLib\{ED894DB9-2DC6-4CA5-8FDF-86763C582564}
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{2318C2B1-4965-11d4-9B18-009027A5CD4F}

Registry entries are set as follows:

HKCR\Googletoolbar.Google.1\CLSID
(default)
{2318C2B1-4965-11d4-9B18-009027A5CD4F}

HKCR\Googletoolbar.Google\CLSID
(default)
{2318C2B1-4965-11d4-9B18-009027A5CD4F}

Registry entries are created under:

HKCR\Googletoolbar.Google

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