Summary

Summary
Action
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| Affected operating systems | Windows |
|---|---|
| Characteristics |
|
| Protection available since | 21 July 2008 22:38:23 (GMT) |
| Detected by | All Sophos products |
- Free virus, spyware, and adware scan
- Test your existing anti-virus protection
- Find threats your anti-virus missed
Action

Summary
Action
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Please follow the instructions for removing Trojans.
More Information
When Troj/Agent-HFZ is installed the following files are created:
<System>\ntos.exe - copy of Troj/Agent-HFZ
<System>\wsnpoem\audio.dll - empty file, can be safely deleted
<System>\wsnpoem\video.dll - empty file, can be safely deleted
The following registry entry is changed to run ntos.exe on startup:
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Userinit
<System>\userinit.exe,<System>\ntos.exe,
