Summary

Summary
Action
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| Affected operating systems | Windows |
|---|---|
| Characteristics |
|
| 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

Summary
Action
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Please follow the instructions for removing Trojans.
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\
