io ho deo virus sul pc... guardando lo scan di hijackthis non riesco a capire cosa devo eliminare mi potete dare una mano?

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 16.54.17, on 29/05/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16640)
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
c:\Programmi\File comuni\Symantec Shared\ccProxy.exe
c:\Programmi\File comuni\Symantec Shared\ccSetMgr.exe
c:\Programmi\Norton Internet Security\ISSVC.exe
c:\Programmi\Norton Internet Security\Norton AntiVirus\navapsvc.exe
c:\Programmi\File comuni\Symantec Shared\SNDSrvc.exe
c:\Programmi\File comuni\Symantec Shared\SPBBC\SPBBCSvc.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
c:\Programmi\File comuni\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\aspimgr.exe
c:\Programmi\File comuni\LightScribe\LSSrvc.exe
C:\WINDOWS\System32\PAStiSvc.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\Symantec\LiveUpdate\ALUSchedulerSvc.e xe
c:\Programmi\File comuni\Symantec Shared\Security Center\SymWSC.exe
C:\Programmi\HP\HP Software Update\HPWuSchd2.exe
C:\Programmi\Java\jre1.6.0_05\bin\jusched.exe
C:\WINDOWS\RTHDCPL.EXE
C:\HP\KBD\KBD.EXE
C:\Programmi\iTunes\iTunesHelper.exe
C:\windows\system\hpsysdrv.exe
C:\Programmi\iPod\bin\iPodService.exe
C:\WINDOWS\system32\hphmon06.exe
C:\Programmi\Microsoft Office\Office12\GrooveMonitor.exe
C:\Programmi\File comuni\Symantec Shared\ccApp.exe
C:\Programmi\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\WINDOWS\AGRSMMSG.exe
C:\Programmi\QuickTime\qttask.exe
C:\DOCUME~1\HP_PRO~1\IMPOST~1\Temp\AerB.exe
C:\Programmi\Google\GoogleToolbarNotifier\GoogleTo olbarNotifier.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Picasa2\PicasaMediaDetector.exe
C:\Programmi\Philips Intelligent Agent\Philips Intelligent Agent.exe
C:\Programmi\Messenger\msmsgs.exe
C:\Programmi\HP\Digital Imaging\bin\hpqtra08.exe
C:\Programmi\HP\Digital Imaging\bin\hpqgalry.exe
C:\Programmi\Windows Live\Messenger\usnsvc.exe
C:\Programmi\Windows Live\Messenger\msnmsgr.exe
C:\Programmi\Internet Explorer\iexplore.exe
C:\Programmi\File comuni\Microsoft Shared\Windows Live\WLLoginProxy.exe
C:\Programmi\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.fastweb.it/
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 Bar = http://ie.redirect.hp.com/svs/rdr?TY...ion&pf=desktop
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: Supporto di collegamento per Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\Programmi\Microsoft Office\Office12\GrooveShellExtensions.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre1.6.0_05\bin\ssv.dll
O2 - BHO: Guida per l'accesso a Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Programmi\File comuni\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programmi\google\googletoolbar2.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Programmi\Google\GoogleToolbarNotifier\3.0.1225 .9868\swg.dll
O2 - BHO: Windows Live Toolbar Helper - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Programmi\Windows Live Toolbar\msntb.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - c:\Programmi\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - c:\Programmi\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar2.dll
O3 - Toolbar: Windows Live Toolbar - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Programmi\Windows Live Toolbar\msntb.dll