Sophos

Troj/HacDef-X

Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from December 2005 (4.00)
Protection available since 18 October 2005 13:21:55 (GMT)
Last updated 20 October 2005 03:41:13 (GMT)
Detected by All Sophos products

Action

More Information

Troj/HacDef-X is a Trojan for the Windows platform.

When first run Troj/HacDef-X copies itself to <Windows>\gencroot.exe.

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

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
gencroot
<Windows>\gencroot.exe

The file gencroot.exe is registered as a new system driver service named "Windows Workstation Service", with a display name of "Windows Workstation Service" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under:

HKLM\SYSTEM\CurrentControlSet\Services\Windows Workstation Service\

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