Summary

Summary
Action
More Information
| Included in our products from | January 2006 (4.01) |
|---|---|
| Protection available since | 28 July 2004 08:35:24 (GMT) |
| Last updated | 17 November 2005 13:24:08 (GMT) |
| Detected by | All Sophos products |
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\Winhost = win.exe.
and delete it if it exists.
Close the registry editor.
More Information
Troj/Dloader-AP downloads and executes the file sys1st.exe which is detected by Sophos Anti-Virus as Troj/Dloader-AR.
The Trojan copies itself to the Windows folder with the filename win.exe and creates the following registry entry so that the Trojan is run when Windows starts up:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\Winhost = win.exe.
A file may be created in the root folder with the filename mc.com. This file can be safely deleted.
