Lin Yu, skip the renaming part.
I'll get straight to the fix.
Step 1Follow
this post to remove the MSN virus.
Step 2[*]Download SDFix by AndyManchesta and save it to your desktop.
[*]Double click on SDFix.exe. By default, it will install to C:\.
[*]Click on Install.
Next, boot into Safe Mode.
[*]When you see BIOS screen, start pressing F8.
[*]A boot menu will appear shortly.
[*]Using the up down arrows, select Safe Mode and press the Enter key.
[*]Windows will now load.
[*]Log in to your usual account.
[*]Navigate to C:\SDfix (if you installed it to the default location, otherwise, locate where you installed it)
[*]Double click on RunThis.bat
[*]Type Y to begin the cleanup process.
[*]It will remove any Trojan Services and Registry Entries that it finds then prompt you to press any key to Reboot.
[*]Press any key to reboot.
[*]When the PC restarts the tool will run again and complete the removal process then display Finished, press any key to end the script and load your desktop icons.
[*]Once the desktop icons load, the SDFix report will open on screen. You can also find the report in SDFix folder, named Report.txt.
Step 3Please download Combofix from
Tech Support Forum or
Bleeping Computer. Save it to your desktop.
Double click to run it. Follow the prompts. Once done, it will reboot and a log will be produced. Please post that log and a new HijackThis log in your next reply.
Do not mouse click on Combofix while it is running. That may cause it to stall.Please post these logs in your next reply:
1. MSN Cleaner log
2. SDFix Report (C:\SDFix\Report.txt)
3. Combofix log (C:\Combofix.txt)
4. A new HijackThis log