Sophos

Troj/DwnLdr-HCM

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 2008 (4.30)
Protection available since 17 April 2008 05:56:48 (GMT)
Detected by All Sophos products

Action

More Information

Troj/DwnLdr-HCM is a downloader and information stealing Trojan for the Windows platform.

When run Troj/DwnLdr-HCM creates the file <System>\acrobat.dll (also detected as Troj/DwnLdr-HCM). The Trojan subsequently sets the following registry entries so that it can run on startup:

HKCR\CLSID\{BD942DA7-96C8-4342-84C6-E2BCFE69FE11}\InprocServer32
(default)
<System>\acrobat.dll

HKCR\CLSID\{BD942DA7-96C8-4342-84C6-E2BCFE69FE11}\InprocServer32
ThreadingModel
Apartment

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Adobe Acrobat ActiveX Control
Rundll32 acrobat.dll,AInit

Troj/DwnLdr-HCM also overwrites the Windows HOSTS file.

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