I have been facing a lot of problem with my computer. I am giving below some of the problems:

1. On start-up a window security centre page opens which seems to me fake. It tells me to install ultimate fixer,system defender etc.

Various pop up opens in the task bar like
2. window security centre: Location catched media files. Files cannot be erased.
3. window security centre : There are number of active viruses in your computer.
4. A problem has been detected buggy application
5. system is shutting down and the computer shuts down after a while
Please help me in removing the viruses. I am giving below hijackthis report for analysis

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 07:53, on 2008-05-16
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\.80a44d41\80a44d41.exe
D:\Program Files\BitTorrent\bittorrent.exe
D:\Program Files\PC Tools AntiVirus\PCTAVSvc.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Common Files\Ulead Systems\DVD\ULCDRSvr.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Microsoft Office\OFFICE11\WINWORD.EXE
C:\Documents and Settings\admin\Desktop\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.co.in/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - D:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O4 - HKCU\..\Run: [BitTorrent] "D:\Program Files\BitTorrent\bittorrent.exe"
O8 - Extra context menu item: &Download with &DAP - D:\Program Files\DAP\dapextie.htm
O8 - Extra context menu item: Download &all with DAP - D:\Program Files\DAP\dapextie2.htm
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O17 - HKLM\System\CCS\Services\Tcpip\..\{9AF31267-A20C-4E45-ABC9-0E4BBE8124C6}: NameServer = 203.94.243.70,203.94.227.70
O20 - Winlogon Notify: bcqgbdim - C:\WINDOWS\SYSTEM32\bcqgbdim.dll
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: PC Tools AntiVirus Engine (PCTAVSvc) - PC Tools Research Pty Ltd - D:\Program Files\PC Tools AntiVirus\PCTAVSvc.exe
O23 - Service: Ulead Burning Helper (UleadBurningHelper) - Ulead Systems, Inc. - C:\Program Files\Common Files\Ulead Systems\DVD\ULCDRSvr.exe

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End of file - 2853 bytes

Please remove BitTorrent with Add/Remove Programs. We do not clean logs that have P2P applications installed as this can cause reinfection during your cleaning.

Please refer to this topic:
/t204179-P2P_programs_we_ask_that_you_remove_first.html
(Don't put it back until after your cleaning is completed.)


P2P apps must be completely removed before we will help you.


After you've done that, please post a fresh log below. Thanks.

_________________

Microsoft MVP Consumer Security 2006, 2007 & 2008

Dear sir,
I have uninstalled the Bittorrent p2p and below is the fresh hijack log:
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 21:37, on 2008-05-16
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\.80a44d41\80a44d41.exe
D:\Program Files\PC Tools AntiVirus\PCTAVSvc.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Common Files\Ulead Systems\DVD\ULCDRSvr.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Documents and Settings\admin\Desktop\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.co.in/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - D:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O4 - HKCU\..\Run: [BitTorrent] "D:\Program Files\BitTorrent\bittorrent.exe"
O8 - Extra context menu item: &Download with &DAP - D:\Program Files\DAP\dapextie.htm
O8 - Extra context menu item: Download &all with DAP - D:\Program Files\DAP\dapextie2.htm
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O17 - HKLM\System\CCS\Services\Tcpip\..\{9AF31267-A20C-4E45-ABC9-0E4BBE8124C6}: NameServer = 203.94.243.70,203.94.227.70
O20 - Winlogon Notify: bcqgbdim - C:\WINDOWS\SYSTEM32\bcqgbdim.dll
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: PC Tools AntiVirus Engine (PCTAVSvc) - PC Tools Research Pty Ltd - D:\Program Files\PC Tools AntiVirus\PCTAVSvc.exe
O23 - Service: Ulead Burning Helper (UleadBurningHelper) - Ulead Systems, Inc. - C:\Program Files\Common Files\Ulead Systems\DVD\ULCDRSvr.exe

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End of file - 2753 bytes

Some P2P applications are as bad as trojans when it comes to removal. Here's what you do:

Check Add/Remove Programs again via Control Panel. If any BitTorrent entry is still there, remove it.


Next...
Windows XP: If it's not in Add/Remove Programs, open Task Manager by right-clicking your desktop taskbar and selecting it. Choose the Processes tab. Look for the bittorent.exe executable file. Highlight it by clicking on it once, then click the End Process button on the bottom right. You'll get a warning box but just turn it off anyway. Close Task Manager.


Run HijackThis. Do a System Scan Only. Put a checkmark beside this entry only, be sure all other windows are closed, then click the Fix Checked button.

O4 - HKCU\..\Run: [BitTorrent] "D:\Program Files\BitTorrent\bittorrent.exe"

Reboot your computer.

Next, do a system scan and save a logfile with HijackThis. Post the new log here.

_________________

Microsoft MVP Consumer Security 2006, 2007 & 2008