high
Summary
Summary
Action- More Information
| Affected operating systems | Windows |
|---|---|
| Protection available since | 21 July 2005 06:04:15 (GMT) |
| Last updated | 11 October 2005 09:25:52 (GMT) |
| Detected by | All Sophos products |
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Action
- Summary
- Action
- More Information
Please follow the instructions for removing Trojans.
Windows NT/2000/XP/2003
In Windows NT/2000/XP/2003 you will also need to edit the following registry entry. The removal of this entry is optional in Windows 95/98/Me. Please read the warning about editing the registry.
At the taskbar, click Start|Run. Type 'Regedit' and press Return. The registry editor opens.
Before you edit the registry, you should make a backup. On the 'Registry' menu, click 'Export Registry File'. In the 'Export range' panel, click 'All', then save your registry as Backup.
Locate the HKEY_LOCAL_MACHINE entry:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Diagnostic
<Windows>\diagnostic.exe
and delete it if it exists.
Close the registry editor.
More Information
Troj/Alpha-C is a backdoor Trojan for the Windows platform.
Troj/Alpha-C includes functionality to send notification messages to remote locations.
When first run Troj/Alpha-C copies itself to <Windows>\diagnostic.exe.
The following registry entry is created to run diagnostic.exe on startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Diagnostic
<Windows>\diagnostic.exe
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