Help needed: Four icons "Cellphone Ringtones, Tune Up My PC, .." and a blue searchbar

I have followed all guidelines and done my homework but still no luck ...

Sympton: 1) A two-line blue searchbar pop up and stays just above windows taskbar when I first run IE; 2) Four icons - "Cellphone Ringtones", "Tune Up My PC", "Casino Online", and "Find a Date" show up on my desktop when I start windows; 3) A LOP searchbar embedded with IE; 4) Norton AntiVirus reports Download.Trojan virus in mmbun[1].exe but cannot remove.

Note: none of the above sympton exists if windows run in Safe mode

Please help. Thanks in advance.

 

I think I have fixed it except the Download.Trojan virus in mmbun.exe. Would anyone kindly give me a help on this?

 

http://www.majorgeeks.com/images/grenade.gif Download HijackThis 1.99.1

http://www.majorgeeks.com/images/grenade.gif Unzip the hijackthis.exe file to a folder you create named C:\Program Files\HJT

http://www.majorgeeks.com/images/grenade.gif Do NOT run Hijack This from the Desktop, a temp folder, or a sub-folder of C:\Documents and Settings, or choose to run it directly from the ZIP file as your backups will not be safely stored.

http://www.majorgeeks.com/images/grenade.gifBefore running HijackThis: You must close each of the following:your web browser, e-mail client, instant messenger, and programs like notepad, wordpad, MS Word etc. And any other unnecessary running programs.

http://www.majorgeeks.com/images/grenade.gifRun HijackThis and save your log file.

http://www.majorgeeks.com/images/grenade.gif Post your log as an ATTACHMENT to your next post. (Do NOT copy/paste the log into your post as it will be removed).

http://www.majorgeeks.com/images/grenade.gifNeed help with HJT? See this thread: NO HIJACK THIS LOG FILES BEFORE READING THIS: HJT Tutorial & LOG File Posting