Lenteur PC et UC à 100%

Bonjour,
Depuis quelques temps mon ordinateur est d'une lenteur exaspérante, chaque application met un temps fou à s'ouvrir ou à se fermer.
L'utilisation de l'UC est quasiment en permanence à 100%
J'ai le sentiment d'avoir récolté un virus.
Je fais appel à vos connaissances, n'étant pas un expert (loin de là).

Ci-après le rapport Hijackthis.

Merci de me guider vers la lumière

Logfile of HijackThis v1.99.1
Scan saved at 23:02:19, on 16/10/2008
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP3 (6.00.2900.5512)

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\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.exe
C:\Program Files\AntiVir PersonalEdition Classic\sched.exe
C:\Program Files\AntiVir PersonalEdition Classic\avguard.exe
C:\WINDOWS\system32\drivers\CDAC11BA.EXE
C:\WINDOWS\system32\CTsvcCDA.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Java\jre1.6.0_07\bin\jusched.exe
C:\Program Files\HP\HP Software Update\HPWuSchd2.exe
C:\Program Files\AntiVir PersonalEdition Classic\avgnt.exe
C:\PROGRA~1\Nokia\NOKIAP~1\LAUNCH~1.EXE
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\Program Files\Search Settings\SearchSettings.exe
C:\Program Files\Creative\Creative ZEN\ZEN Media Explorer\CTCheck.exe
C:\WINDOWS\system32\sstray.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\PrivacyEraser Computing\Free Internet Eraser\InternetEraser.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\Lavasoft\Ad-Aware 2007\Ad-Watch2007.exe
C:\Program Files\Microsoft ActiveSync\WCESCOMM.EXE
C:\Program Files\Fichiers communs\PCSuite\Services\ServiceLayer.exe
C:\Program Files\Wallpaper\Wallpaper.exe
C:\WINDOWS\system32\rundll32.exe
C:\Program Files\Skype\Phone\Skype.exe
C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BackWeb-8876480.exe
C:\Program Files\Nokia\Nokia PC Suite 6\PcSync2.exe
C:\Program Files\Creative\Sync Manager Unicode\CTSyncU.exe
C:\PROGRA~1\FICHIE~1\Nokia\MPAPI\MPAPI3s.exe
C:\Program Files\Adobe\Acrobat 5.0\Distillr\AcroTray.exe
C:\Program Files\SAGEM\SAGEM F@st 800-840\dslmon.exe
C:\Program Files\HP\Digital Imaging\bin\hpqtra08.exe
C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
C:\Program Files\Logitech\SetPoint\KEM.exe
C:\Program Files\Logitech\SetPoint\KHALMNPR.EXE
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\SoftwareDistribution\Download\38ee4771349e51483451e2d031857451\update\update.exe
C:\Documents and Settings\PATRICK\Mes documents\Downloads\Audit et nettoyage\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.fr/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://home.free.fr/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: SearchSettings Class - {E312764E-7706-43F1-8DAB-FCDD2B1E416D} - (no file)
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O2 - BHO: SearchSettings Class - {E312764E-7706-43F1-8DAB-FCDD2B1E416D} - (no file)
O3 - Toolbar: PrivBar - {300BC64A-BF32-4cc8-8917-91148CEFE700} - C:\DropMyRights\PrivBar.dll
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_07\bin\jusched.exe"
O4 - HKLM\..\Run: [zBrowser Launcher] C:\Program Files\Logitech\iTouch\iTouch.exe
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [mouseElf] C:\PROGRA~1\GENIUS~1\GNETMOUS.EXE
O4 - HKLM\..\Run: [LiveNote] livenote.exe
O4 - HKLM\..\Run: [anvshell] anvshell.exe
O4 - HKLM\..\Run: [HP Software Update] C:\Program Files\HP\HP Software Update\HPWuSchd2.exe
O4 - HKLM\..\Run: [avgnt] "C:\Program Files\AntiVir PersonalEdition Classic\avgnt.exe" /min
O4 - HKLM\..\Run: [PCSuiteTrayApplication] C:\PROGRA~1\Nokia\NOKIAP~1\LAUNCH~1.EXE -startup
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [Ad-Watch] C:\Program Files\Lavasoft\Ad-Aware 2007\Ad-Watch2007.exe
O4 - HKLM\..\Run: [SearchSettings] C:\Program Files\Search Settings\SearchSettings.exe
O4 - HKLM\..\Run: [CTCheck] C:\Program Files\Creative\Creative ZEN\ZEN Media Explorer\CTCheck.exe
O4 - HKLM\..\Run: [nForce Tray Options] sstray.exe /r
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Free Internet Eraser] C:\Program Files\PrivacyEraser Computing\Free Internet Eraser\InternetEraser.exe /Startup
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [H/PC Connection Agent] "C:\Program Files\Microsoft ActiveSync\WCESCOMM.EXE"
O4 - HKCU\..\Run: [Wallpaper] "C:\Program Files\Wallpaper\Wallpaper.exe" Starter
O4 - HKCU\..\Run: [Skype] "C:\Program Files\Skype\Phone\Skype.exe" /nosplash /minimized
O4 - HKCU\..\Run: [LDM] C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BackWeb-8876480.exe
O4 - HKCU\..\Run: [BitTorrent] "C:\Program Files\BitTorrent\bittorrent.exe" --force_start_minimized
O4 - HKCU\..\Run: [PcSync] C:\Program Files\Nokia\Nokia PC Suite 6\PcSync2.exe /NoDialog
O4 - HKCU\..\Run: [CTSyncU.exe] "C:\Program Files\Creative\Sync Manager Unicode\CTSyncU.exe"
O4 - HKCU\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - Startup: Offre gratuite de la part d'Audible.fr.lnk = C:\Documents and Settings\PATRICK\Local Settings\Temp\Offre gratuite de la part d'Audible.fr.exe
O4 - Global Startup: Acrobat Assistant.lnk = C:\Program Files\Adobe\Acrobat 5.0\Distillr\AcroTray.exe
O4 - Global Startup: DSLMON.lnk = C:\Program Files\SAGEM\SAGEM F@st 800-840\dslmon.exe
O4 - Global Startup: HP Digital Imaging Monitor.lnk = C:\Program Files\HP\Digital Imaging\bin\hpqtra08.exe
O4 - Global Startup: Lancement rapide d'Adobe Reader.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Logitech Desktop Messenger.lnk = C:\Program Files\Logitech\Desktop Messenger\8876480\Program\LDMConf.exe
O4 - Global Startup: Logitech SetPoint.lnk = C:\Program Files\Logitech\SetPoint\KEM.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: SATARaid.lnk = ?
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra button: Créer un Favori de l'appareil mobile - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\INetRepl.dll
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\INetRepl.dll
O9 - Extra 'Tools' menuitem: Créer un Favori de l'appareil mobile... - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\INetRepl.dll
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
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
O10 - Unknown file in Winsock LSP: c:\windows\system32\betsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\betsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\betsp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\betsp.dll
O14 - IERESET.INF: START_PAGE_URL=http://home.free.fr/
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} - C:\Program Files\Yahoo!\Common\yinsthelper.dll
O16 - DPF: {68C1822F-F5C7-4404-A73F-03C10E0E94DA} (Image Uploader 3.0 Control) - http://www2.photoweb.fr/direct/tel [...] otoweb.cab
O20 - Winlogon Notify: dimsntfy - %SystemRoot%\System32\dimsntfy.dll (file missing)
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: Ad-Aware 2007 Service (aawservice) - Lavasoft AB - C:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.exe
O23 - Service: AntiVir Scheduler (AntiVirScheduler) - Avira GmbH - C:\Program Files\AntiVir PersonalEdition Classic\sched.exe
O23 - Service: AntiVir PersonalEdition Classic Service (AntiVirService) - Avira GmbH - C:\Program Files\AntiVir PersonalEdition Classic\avguard.exe
O23 - Service: Boonty Games - Unknown owner - C:\Program Files\Fichiers communs\BOONTY Shared\Service\Boonty.exe (file missing)
O23 - Service: C-DillaCdaC11BA - Macrovision - C:\WINDOWS\system32\drivers\CDAC11BA.EXE
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\system32\CTsvcCDA.exe
O23 - Service: getPlus(R) Helper - NOS Microsystems Ltd. - C:\Program Files\NOS\bin\getPlus_HelperSvc.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: ServiceLayer - Nokia. - C:\Program Files\Fichiers communs\PCSuite\Services\ServiceLayer.exe

Bonsoir,

Désolé, je suis resté assez longtemps off. Dans l'intervalle j'ai téléchargé la version d'évaluation de Kaspersky qui manifestement est plus efficace qu'Antivir Avira.

Merci pour ton aide.


Voici le rapport de Toolbar-S&D :


-----------\\ ToolBar S&D 1.2.4 XP/Vista

Microsoft Windows XP Professionnel ( v5.1.2600 ) Service Pack 3
X86-based PC ( Uniprocessor Free : AMD Athlon(tm) )
BIOS : Phoenix - AwardBIOS v6.00PG
USER : PATRICK ( Administrator )
BOOT : Normal boot
Antivirus : Avira AntiVir PersonalEdition Classic 0.0.0.0 (Not Activated)
A:\ (USB)
C:\ (Local Disk) - NTFS - Total:76 Go (Free:27 Go)
D:\ (CD or DVD)
E:\ (CD or DVD)

"C:\ToolBar SD" ( MAJ : 27-10-2008|09:25 )
Option : [1] ( 12/11/2008|18:17 )

-----------\\ Recherche de Fichiers / Dossiers ...

C:\Program Files\Mozilla Firefox\extensions\search@searchsettings.com
C:\Program Files\Mozilla Firefox\extensions\search@searchsettings.com\CHROME\CONTENT\searchsettingsplugin.js
C:\Program Files\Mozilla Firefox\extensions\search@searchsettings.com\CHROME\CONTENT\searchsettingsplugin.xul
C:\Program Files\Mozilla Firefox\extensions\search@searchsettings.com\CHROME\LOCALE\EN-US\searchsettingsplugin.dtd
C:\Program Files\Mozilla Firefox\extensions\search@searchsettings.com\CHROME\LOCALE\EN-US\searchsettingsplugin.properties
C:\Program Files\Mozilla Firefox\extensions\search@searchsettings.com\COMPONENTS\SearchSettingsFF.dll
C:\DOCUME~1\Brigitte\APPLIC~1\Search Settings
C:\DOCUME~1\Brigitte\APPLIC~1\Search Settings\kb127
C:\DOCUME~1\INVIT~1\APPLIC~1\Search Settings
C:\DOCUME~1\INVIT~1\APPLIC~1\Search Settings\kb127
C:\DOCUME~1\PATRICK\APPLIC~1\Search Settings
C:\DOCUME~1\PATRICK\APPLIC~1\Search Settings\kb127
C:\Program Files\Search Settings
C:\Program Files\Search Settings\kb127
C:\Program Files\Search Settings\SearchSettings.exe

-----------\\ Extensions

(PATRICK) - {29852C08-1E91-4889-A6BF-C77F91D6A8F3} => littlefox
(PATRICK) - {36C13C8F-54F1-412e-8177-2E411719162D} => chrome
(PATRICK) - {635abd67-4fe9-1b23-4f01-e679fa7484c1} => ytoolbar
(PATRICK) - {6C4BAFB6-2AC2-4405-A98D-546B55B3AE92} => nautipolis
(PATRICK) - {acidburnr1-4ed8-4a4d-9194-975a45a391xp} => acid_burn-1.0-fx
(PATRICK) - {F44A59FC-F61F-46ab-8FD4-444CED7C412A} => platinum-1.0.1-fx
(PATRICK) - {fb0cbf5b-695b-4322-8b49-5dedbfb946fc} => pinball-0.9.9.3-fx


-----------\\ [..\Internet Explorer\Main]

[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main]
"Local Page"="C:\\WINDOWS\\system32\\blank.htm"
"Start Page"="http://www.google.fr/"
"Search Page"="http://www.microsoft.com/isapi/redir.dll?prd=ie&ar=iesearch"

[HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Main]
"Default_Page_URL"="http://home.free.fr/"
"Default_Search_URL"="http://www.microsoft.com/isapi/redir.dll?prd=ie&ar=iesearch"
"Search Page"="http://www.microsoft.com/isapi/redir.dll?prd=ie&ar=iesearch"
"Start Page"="http://www.microsoft.com/isapi/redir.dll?prd={SUB_PRD}&clcid={SUB_CLSID}&pver={SUB_PVER}&ar=home"
"Update_Check_Page"="http://www.microsoft.com/isapi/redir.dll?Prd=ie&Pver=5.0&Ar=ie5update"


--------------------\\ Recherche d'autres infections

--------------------\\ ROGUES ..

C:\PROGRA~1\PrivacyEraser Computing

--------------------\\ Cracks & Keygens ..

C:\DOCUME~1\PATRICK\Mes documents\Downloads\Ecriture roman\crack Phraseo.rar



1 - "C:\ToolBar SD\TB_1.txt" - 12/11/2008|18:20 - Option : [1]

-----------\\ Fin du rapport a 18:20:37,00