Some Virus in operating system meomry. Avast couldn't heal it..

Hi,
My pc is intel pentium dual core processor, xp sp2 operating sytem, 512mb ram, broadband net connection. whenever i scanned my pc, it says that some virus is there in operating system memory. but avast is not deleting it completely. each time after restart if i scan, it will show this again… it is related to svchost.exe… please check the log file made using hijackthis…
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 10:55:28 AM, on 12/21/2008
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
d:\Alwil Software\Avast46\aswUpdSv.exe
d:\Alwil Software\Avast46\ashServ.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\inetsrv\inetinfo.exe
C:\Program Files\McAfee\SiteAdvisor\McSACore.exe
C:\Program Files\Common Files\Microsoft Shared\VS7Debug\mdm.exe
d:\Alwil Software\Avast46\ashMaiSv.exe
C:\WINDOWS\system32\wscntfy.exe
d:\Alwil Software\Avast46\ashWebSv.exe
C:\WINDOWS\System32\hkcmd.exe
C:\WINDOWS\System32\igfxpers.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\RAMfreer\RAMfreer.exe
D:\ALWILS~1\Avast46\ashDisp.exe
C:\Program Files\LClock\LClock.exe
C:\WINDOWS\wt\updater\wcmdmgr.exe
C:\Program Files\Sony Ericsson\Mobile2\Application Launcher\Application Launcher.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Common Files\Teleca Shared\CapabilityManager.exe
C:\Program Files\Common Files\Teleca Shared\Generic.exe
C:\Program Files\Yahoo!\Messenger\ymsgr_tray.exe
C:\Program Files\Sony Ericsson\Mobile2\Mobile Phone Monitor\epmworker.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://in.rd.yahoo.com/customize/ie/defaults/sp/msgr9/*http://in.search.yahoo.com
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://in.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://in.rd.yahoo.com/customize/ie/defaults/su/msgr9/*http://in.search.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://in.rd.yahoo.com/customize/ie/defaults/sp/msgr9/*http://in.search.yahoo.com
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://in.yahoo.com
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://in.rd.yahoo.com/customize/ie/defaults/su/msgr9/*http://in.search.yahoo.com
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer provided by EFY
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = 100.1.200.99:8080
R3 - URLSearchHook: (no name) - {00A6FAF6-072E-44cf-8957-5838F569A31D} - C:\Program Files\MyWebSearch\SrchAstt\3.bin\MWSSRCAS.DLL (file missing)
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\PROGRA~1\YAHOO!\Companion\Installs\cpn\yt.dll
O2 - BHO: &Yahoo! Toolbar Helper - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\PROGRA~1\YAHOO!\Companion\Installs\cpn\yt.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: mwsBar BHO - {07B18EA1-A523-4961-B6BB-170DE4475CCA} - C:\Program Files\MyWebSearch\bar\3.bin\MWSBAR.DLL
O2 - BHO: McAfee SiteAdvisor BHO - {B164E929-A1B6-4A06-B104-2CD0E90A88FF} - c:\PROGRA~1\mcafee\SITEAD~1\mcieplg.dll
O2 - BHO: SingleInstance Class - {FDAD4DA1-61A2-4FD8-9C17-86F7AC245081} - C:\PROGRA~1\YAHOO!\Companion\Installs\cpn\YTSingleInstance.dll
O3 - Toolbar: McAfee SiteAdvisor Toolbar - {0EBBBE48-BAD4-4B4C-8E5A-516ABECAE064} - c:\PROGRA~1\mcafee\SITEAD~1\mcieplg.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\PROGRA~1\YAHOO!\Companion\Installs\cpn\yt.dll
O4 - HKLM..\Run: [igfxtray] C:\WINDOWS\System32\igfxtray.exe
O4 - HKLM..\Run: [igfxhkcmd] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM..\Run: [igfxpers] C:\WINDOWS\System32\igfxpers.exe
O4 - HKLM..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM..\Run: [RAMfreer] C:\Program Files\RAMfreer\RAMfreer.exe
O4 - HKLM..\Run: [PrinTray] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\printray.exe
O4 - HKLM..\Run: [avast!] d:\ALWILS~1\Avast46\ashDisp.exe
O4 - HKLM..\Run: [LClock] C:\Program Files\LClock\LClock.exe
O4 - HKLM..\Run: [wcmdmgr] C:\WINDOWS\wt\updater\wcmdmgrl.exe -launch
O4 - HKLM..\Run: [Sony Ericsson PC Suite] “C:\Program Files\Sony Ericsson\Mobile2\Application Launcher\Application Launcher.exe” /startoptions
O4 - HKLM..\Run: [TkBellExe] “C:\Program Files\Common Files\Real\Update_OB\realsched.exe” -osboot
O4 - HKLM..\Run: [QuickTime Task] “C:\Program Files\QuickTime\qttask.exe” -atboottime
O4 - HKCU..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU..\Run: [Messenger (Yahoo!)] “C:\Program Files\Yahoo!\Messenger\YahooMessenger.exe” -quiet
O4 - HKUS\S-1-5-18..\RunOnce: [RunNarrator] Narrator.exe (User ‘SYSTEM’)
O4 - HKUS.DEFAULT..\RunOnce: [RunNarrator] Narrator.exe (User ‘Default user’)
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O8 - Extra context menu item: &Search - http://edits.mywebsearch.com/toolbaredits/menusearch.jhtml?p=ZSzim029YYIN
O8 - Extra context menu item: E&xport to Microsoft Excel - res://D:\PROGRA~1\MICROS~1\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - D:\Java\jre1.5.0_01\bin\npjpi150_01.dll
O9 - Extra ‘Tools’ menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - D:\Java\jre1.5.0_01\bin\npjpi150_01.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - D:\PROGRA~1\MICROS~1\OFFICE11\REFIEBAR.DLL
O9 - Extra button: Yahoo! Messenger - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - C:\Program Files\Yahoo!\Messenger\YahooMessenger.exe
O9 - Extra ‘Tools’ menuitem: Yahoo! Messenger - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - C:\Program Files\Yahoo!\Messenger\YahooMessenger.exe
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
O14 - IERESET.INF: START_PAGE_URL=http://www.zdnetindia.com
O16 - DPF: {1D4DB7D2-6EC9-47A3-BD87-1E41684E07BB} - http://ak.exe.imgfarm.com/images/nocache/funwebproducts/ei-3/SmileyCentralFWBInitialSetup1.0.1.0.cab
O17 - HKLM\System\CCS\Services\Tcpip..{464E7A40-CCC5-47E8-92A9-82282D93225A}: NameServer = 192.168.1.1,61.1.224.33
O18 - Protocol: sacore - {5513F07E-936B-4E52-9B00-067394E91CC5} - c:\PROGRA~1\mcafee\SITEAD~1\mcieplg.dll
O23 - Service: Adobe LM Service - Unknown owner - C:\Program Files\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - d:\Alwil Software\Avast46\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - d:\Alwil Software\Avast46\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - d:\Alwil Software\Avast46\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - d:\Alwil Software\Avast46\ashWebSv.exe
O23 - Service: Backbone Service (BBDemon) - Dassault Systemes - F:\Dassault Systemes\B09D20\intel_a\code\bin\CATSysDemon.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: McAfee SiteAdvisor Service - Unknown owner - C:\Program Files\McAfee\SiteAdvisor\McSACore.exe
O23 - Service: My Web Search Service (MyWebSearchService) - MyWebSearch.com - C:\PROGRA~1\MYWEBS~1\bar\3.bin\mwssvc.exe

Please help me…

Looks like you got MyWebSearch.

O2 - BHO: mwsBar BHO - {07B18EA1-A523-4961-B6BB-170DE4475CCA} - C:\Program Files\MyWebSearch\bar\3.bin\MWSBAR.DLL
O8 - Extra context menu item: &Search - hxxp://edits.mywebsearch.com/toolbaredits/menusearch.jhtml?p=ZSzim029YYIN
O23 - Service: My Web Search Service (MyWebSearchService) - MyWebSearch.com - C:\PROGRA~1\MYWEBS~1\bar\3.bin\mwssvc.exe

It appears you also have SmileyCentral, which is a PUP (potentially unwanted program) plugin that is also bundled with MWS.

O16 - DPF: {1D4DB7D2-6EC9-47A3-BD87-1E41684E07BB} - hxxp://ak.exe.imgfarm.com/images/nocache/funwebproducts/ei-3/SmileyCentralFWBInitialSetup1.0.1.0.cab

I suggest SuperAntiSpyware Free and MalwareByte’s AntiMalware.

Plus your java is out of date. Uninstall the old version and install the latest here (uncheck MSN Toolbar at Installation).

Thanks… It removed some infected files… do i have to upload the log file here??

Better than upload, copy and paste it here. Maybe dividing it into two or more posts (if needed).