Troj/Torpid-C

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 for each user who ran the virus. 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.

Each user has a registry area named HKEY_USERS\[code number indicating user]\. For each user locate the entry:

HKU\[code number]\Software\Microsoft\Windows\CurrentVersion\Run\
winword
<Windows system folder>\winword.exe

and delete it if it exists.

Close the registry editor.

Troj/Torpid-C is a downloader Trojan.

When run, Troj/Torpid-C copies itself to the Windows system folder as winword.exe and creates the following registry entry in order to run each time a user logs on:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
winword
<Windows system folder>\winword.exe

Troj/Torpid-C will attempt to close security-related windows, such as those generated by firewall and anti-virus applications.

The Trojan attempts to download and run the file "sys.exe" from twenty different sites. The file is downloaded to the user's Temp folder with a randomly generated six letter filename followed by the EXE file extension.