Ok, do EXACTLY what i say if u want ur trojan horse gone:
First, u need to know that a Trojan is not a virus. It is simply malware that makes you become susceptible to viruses. If this makes it easier, u can think of the function of a Trojan as what HIV does to your immune system. Next, you need to identify the Trojan. If your computer has a trojan horse, it should oftenly send you an error message that a process was interrupted or malfunctioning. This is called a DLL error, which is linked to a specific trojan horse. copy and paste the DLL error into this website: www.processlibrary.com and it will give you the info on whether it is a trojan horse or not. If it's a trojan, then it will come in the name of a exe file.
Then, u need to display hidden files. To do this, follow these instructions:
In XP
1. Close all programs
2. Click on the My Computer icon.
3. Select the Tools menu and click Folder Options.
4. Select the View tab in the new window.
5. Check Display the contents of system folders.
6. Under the Hidden files and folders, select Show hidden files and folders.
7. Uncheck Hide file extensions for known file types and Hide protected operating system files.
8. Click Apply button and Restart
In Vista
1. Close all programs so that you are at your desktop.
2. Click Start button.
3. Click Control Panel.
4. In the control panel, Click on the Appearance and Personalization.
5. Click on Show Hidden Files or Folders.
6. Under the Hidden files and folders section select Show hidden files and folders.
7. Uncheck Hide extensions for known file types and Hide protected operating system files.
8. Click Apply button and restart.
Ok, now u need to stop the trojan's processes:
1. Load ur computer into safe mode
2. open task manager by pressing ctrl+alt+delete
3. click the trojan process
4. click end process
Now, u need to edit the registry so the trojan won't install itself back onto ur computer
1. Click Start
2. Click Run
3. Type regedit
4. Find this registry key:
HKEY_LOCAL_MACHINE/
SOFTWARE/
Microsoft/
Windows/
CurrentVersion/
RUN/
5. Delete all exe and dlls associated with the trojan names
6. Delete the value.
Last step is to check ur startups:
1. Open your Start menu.
2. Click Run
3. In the command screen type "msconfig.exe"
4. In the "system configuration utility",click "startup" tab
5. Uncheck any process that is associate with the trojan.
6. Click "OK"
7. Restart