Je crois être infectée

Bonjour ! Merci à l'avance à tous les dévoués "anges" de la dévirussification !!
Mon ordi est très très lent. J'ai eu des problèmes récemment, et maintenant il fonctionne à tout le moins assez pour que je puisse vous écrire, quoique ça plante souvent :( Et par surcroît, mon ordi est très très lent. Quelqu'un peut-il m'aider ?

Je poste déjà le rapport hijackthis...

Merci beaucoup !

Logfile of HijackThis v1.97.7
Scan saved at 09:52:32, on 2006-10-04
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\WINNT\system32\spoolsv.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINNT\system32\cisvc.exe
C:\Program Files\Symantec AntiVirus\DefWatch.exe
C:\WINNT\System32\svchost.exe
C:\Program Files\NetTime\NeTmSvNT.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\system32\stisvc.exe
C:\Program Files\Symantec AntiVirus\Rtvscan.exe
C:\WINNT\Explorer.EXE
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\svchost.exe
C:\Program Files\Logitech\MouseWare\system\em_exec.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\Logitech\iTouch\iTouch.exe
C:\Program Files\NetTime\NetTime.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\Program Files\QuickTime\qttask.exe
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\PROGRA~1\SYMANT~1\VPTray.exe
C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mm_tray.exe
C:\Program Files\Picasa2\PicasaMediaDetector.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Java\jre1.5.0_03\bin\jusched.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\Yahoo!\Messenger\ypager.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
C:\WINNT\system32\internat.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Google\GoogleToolbarNotifier\1.0.720.3640\GoogleToolbarNotifier.exe
C:\Program Files\Sony Corporation\Picture Package\Picture Package Menu\SonyTray.exe
C:\Program Files\Sony Corporation\Picture Package\Picture Package Applications\Residence.exe
C:\WINNT\system32\cidaemon.exe
C:\PROGRA~1\MICROS~2\Office\OUTLOOK.EXE
C:\Program Files\Microsoft Office\Office\WINWORD.EXE
C:\Hjt\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.granddictionnaire.com/btml/fra/r_motclef/index1024_1.asp
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = localhost
R3 - Default URLSearchHook is missing
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: Easy-WebPrint - {327C2873-E90D-4c37-AA9D-10AC9BABA46C} - C:\Program Files\Canon\Easy-WebPrint\Toolband.dll
O3 - Toolbar: @msdxmLC.dll,-1@1033,&Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\System32\msdxm.ocx
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [Logitech Utility] Logi_MwX.Exe
O4 - HKLM\..\Run: [zBrowser Launcher] C:\Program Files\Logitech\iTouch\iTouch.exe
O4 - HKLM\..\Run: [NetTime] C:\Program Files\NetTime\NetTime.exe
O4 - HKLM\..\Run: [NeroCheck] C:\WINNT\system32\\NeroCheck.exe
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [vptray] C:\PROGRA~1\SYMANT~1\VPTray.exe
O4 - HKLM\..\Run: [MMTray] C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mm_tray.exe
O4 - HKLM\..\Run: [Picasa Media Detector] C:\Program Files\Picasa2\PicasaMediaDetector.exe
O4 - HKLM\..\Run: [Internet Explorer6.0] iexplore.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\jre1.5.0_03\bin\jusched.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\RunServices: [Internet Explorer6.0] iexplore.exe
O4 - HKCU\..\Run: [Yahoo! Pager] C:\Program Files\Yahoo!\Messenger\ypager.exe -quiet
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [internat.exe] internat.exe
O4 - HKCU\..\Run: [LDM] C:\Program Files\Logitech\Desktop Messenger\8876480\Program\LogitechDesktopMessenger.exe
O4 - HKCU\..\Run: [Internet Explorer6.0] iexplore.exe
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\1.0.720.3640\GoogleToolbarNotifier.exe
O4 - Global Startup: Logitech Desktop Messenger.lnk = C:\Program Files\Logitech\Desktop Messenger\8876480\Program\LDMConf.exe
O4 - Global Startup: Picture Package Menu.lnk = C:\Program Files\Sony Corporation\Picture Package\Picture Package Menu\SonyTray.exe
O4 - Global Startup: Picture Package VCD Maker.lnk = C:\Program Files\Sony Corporation\Picture Package\Picture Package Applications\Residence.exe
O8 - Extra context menu item: &Search - http://kx.bar.need2find.com/KX/menusearch.html?p=KX
O8 - Extra context menu item: Easy-WebPrint Add To Print List - res://C:\Program Files\Canon\Easy-WebPrint\Resource.dll/RC_AddToList.html
O8 - Extra context menu item: Easy-WebPrint High Speed Print - res://C:\Program Files\Canon\Easy-WebPrint\Resource.dll/RC_HSPrint.html
O8 - Extra context menu item: Easy-WebPrint Preview - res://C:\Program Files\Canon\Easy-WebPrint\Resource.dll/RC_Preview.html
O8 - Extra context menu item: Easy-WebPrint Print - res://C:\Program Files\Canon\Easy-WebPrint\Resource.dll/RC_Print.html
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner v8 (HKLM)
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: TruePass EPF 7,0,100,717 - https://blrscr3.egs-seg.gc.ca/applets/entrusttruepassapplet-epf.cab
O16 - DPF: {04E214E5-63AF-4236-83C6-A7ADCBF9BD02} (HouseCall Control) - http://housecall60.trendmicro.com/housecall/xscan60.cab
O16 - DPF: {166B1BCA-3F9C-11CF-8075-444553540000} (Shockwave ActiveX Control) - http://download.macromedia.com/pub/shockwave/cabs/director/sw.cab
O16 - DPF: {3E68E405-C6DE-49FF-83AE-41EE9F4C36CE} (Office Update Installation Engine) - http://office.microsoft.com/officeupdate/content/opuc.cab
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - https://onedrive.live.com/
O16 - DPF: {56336BCB-3D8A-11D6-A00B-0050DA18DE71} (RdxIE Class) - http://software-dl.real.com/2703e62abf19c5190017/netzip/RdxIE601.cab
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://www.bitdefender.com/scan8/oscan8.cab
O16 - DPF: {62475759-9E84-458E-A1AB-5D2C442ADFDE} - a1540.g.akamai.net
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - update.microsoft.com
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - update.microsoft.com
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - https://www.pandasecurity.com/?ref=www.pandasoftware.com/activescan/as5/asinst.cab
O16 - DPF: {A18962F6-E6ED-40B1-97C9-1FB36F38BFA8} (Aurigma Image Uploader 3.0 Control) - http://www.photolab.ca/fr/Photo/ImageUploader3.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/MsnMessengerSetupDownloader.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://messenger.zone.msn.com/binary/ZIntro.cab30149.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O16 - DPF: {DB893839-10F0-4AF9-92FA-B23528F530AF} - http://deposito.hostance.net/dialer/607129.exe
O16 - DPF: {F127B9BA-89EA-4B04-9C67-2074A9DF61FC} (PCUploader Class) - http://www.walmartphotocentre.ca/activex/PCAXSetup.cab?
O16 - DPF: {F127B9BA-89EA-4B04-9C67-2074A9DF61FD} (Photo Upload Plugin Class) - https://www.costcophotocentre.ca/SignIn?ReturnUrl=%2fFileNotFound.htm%3faspxerrorpath%3d%2fupload%2factivex%2fv2_0_0_9%2ferror.aspx&aspxerrorpath=/upload/activex/v2_0_0_9/error.aspx
O16 - DPF: {F58E1CEF-A068-4C15-BA5E-587CAF3EE8C6} (MSN Chat Control 4.5) - http://chat.msn.com/bin/msnchat45.cab
O18 - Protocol: bwh0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwh0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwi0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwi0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwj0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwj0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwk0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwk0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwl0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwl0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwm0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwm0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwn0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwn0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwo0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwo0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwp0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwp0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwq0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwq0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwr0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwr0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bws0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bws0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwt0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwt0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwu0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwu0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwv0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwv0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bww0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bww0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwx0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwx0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwy0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwy0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwz0 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: bwz0s - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll
O18 - Protocol: offline-8876480 - {D872B7B1-BBC0-4BB8-81FD-AAA7F0A6F485} - C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BWPlugProtocol-8876480.dll