Csrss.exe en lecture E/S permanente

Bonjour à tous,

Depuis ce matin, le processus de mon ordinateur csrss.exe est en lecture E/S permanente (350 000 depuis ce matin), même quand aucun programme n'est lancé. Du coup, mon disque tourne en permanence. Je me demande si je suis victime d'une attaque. A noter que ce processus n'utilise pas de ressource mémoire et processeur. (processeur 0% - mémoire 1164 Ko). La description du processus me trouble : processus d'exécuttion client-serveur avec deux t à exécution ! Est-ce l'original ?

Merci beaucoup par avance pour ceux qui pourront m'aider à analyser le log Hijackthis.
J'ai fait une analyse approfondie avec Kaspersky et ca n'a rien donné. J'ai passé Ccleaner avant de faire le log.

Voici donc le log Hijackthis :

Logfile of HijackThis v1.99.1
Scan saved at 15:09:26, on 28/11/2008
Platform: Unknown Windows (WinNT 6.00.1905 SP1)
MSIE: Internet Explorer v7.00 (7.00.6001.18000)

Running processes:
C:\Windows\system32\taskeng.exe
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Program Files\Windows Defender\MSASCui.exe
C:\Program Files\TOSHIBA\Power Saver\TPwrMain.exe
C:\Program Files\TOSHIBA\SmoothView\SmoothView.exe
C:\Program Files\TOSHIBA\FlashCards\TCrdMain.exe
C:\Windows\RtHDVCpl.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Windows\System32\hkcmd.exe
C:\Windows\System32\igfxpers.exe
C:\Program Files\Camera Assistant Software for Toshiba\traybar.exe
C:\Windows\System32\ThpSrv.exe
C:\Program Files\Intel\Intel Matrix Storage Manager\IAAnotif.exe
C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\avp.exe
C:\Program Files\Common Files\Maxtor\Schedule2\schedhlp.exe
C:\Program Files\ExtraFilm FotoFacil\Agent.exe
C:\Windows\WindowsMobile\wmdcBase.exe
C:\Program Files\TOSHIBA\TOSCDSPD\TOSCDSPD.exe
C:\Program Files\Google\GoogleToolbarNotifier\1.2.1128.5462\GoogleToolbarNotifier.exe
C:\Program Files\Windows Media Player\wmpnscfg.exe
C:\Program Files\Lecteur CANALPLAY\CanalPlayer.exe
C:\Program Files\PDFCreator\PDFCreator.exe
C:\Windows\system32\wbem\unsecapp.exe
C:\Program Files\Brother\ControlCenter3\brccMCtl.exe
C:\Windows\system32\igfxsrvc.exe
C:\Program Files\Synaptics\SynTP\SynToshiba.exe
C:\Windows\system32\wuauclt.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Windows\system32\Taskmgr.exe
C:\Program Files\WinRAR\WinRAR.exe
C:\Windows\system32\SearchFilterHost.exe
E:\users\sebastien\Desktop\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.google.fr/?gws_rd=ssl
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.msn.com/fr-fr/?ocid=iehp
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr/?ocid=iehp
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O1 - Hosts: ::1 localhost
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0\bin\ssv.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide
O4 - HKLM\..\Run: [TPwrMain] %ProgramFiles%\TOSHIBA\Power Saver\TPwrMain.EXE
O4 - HKLM\..\Run: [HSON] %ProgramFiles%\TOSHIBA\TBS\HSON.exe
O4 - HKLM\..\Run: [SmoothView] %ProgramFiles%\Toshiba\SmoothView\SmoothView.exe
O4 - HKLM\..\Run: [00TCrdMain] %ProgramFiles%\TOSHIBA\FlashCards\TCrdMain.exe
O4 - HKLM\..\Run: [RtHDVCpl] RtHDVCpl.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [IgfxTray] C:\Windows\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\Windows\system32\hkcmd.exe
O4 - HKLM\..\Run: [Persistence] C:\Windows\system32\igfxpers.exe
O4 - HKLM\..\Run: [Camera Assistant Software] "C:\Program Files\Camera Assistant Software for Toshiba\traybar.exe"
O4 - HKLM\..\Run: [ThpSrv] C:\Windows\system32\thpsrv /logon
O4 - HKLM\..\Run: [Toshiba Registration] C:\Program Files\Toshiba\Registration\ToshibaRegistration.exe
O4 - HKLM\..\Run: [IAAnotif] C:\Program Files\Intel\Intel Matrix Storage Manager\iaanotif.exe
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [AVP] "C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\avp.exe"
O4 - HKLM\..\Run: [BrMfcWnd] C:\Program Files\Brother\Brmfcmon\BrMfcWnd.exe /AUTORUN
O4 - HKLM\..\Run: [ControlCenter3] C:\Program Files\Brother\ControlCenter3\brctrcen.exe /autorun
O4 - HKLM\..\Run: [Acronis Scheduler2 Service] "C:\Program Files\Common Files\Maxtor\Schedule2\schedhlp.exe"
O4 - HKLM\..\Run: [ExtraFilmHemmaAgent] "C:\Program Files\ExtraFilm FotoFacil\Agent.exe"
O4 - HKLM\..\Run: [Windows Mobile-based device management] %WINDIR%\WindowsMobile\wmdcBase.exe
O4 - HKCU\..\Run: [TOSCDSPD] C:\Program Files\TOSHIBA\TOSCDSPD\TOSCDSPD.exe
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\1.2.1128.5462\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [WMPNSCFG] C:\Program Files\Windows Media Player\WMPNSCFG.exe
O4 - HKCU\..\Run: [CanalPlayer] C:\Program Files\Lecteur CANALPLAY\CanalPlayer.exe
O4 - HKCU\..\Run: [Uniblue RegistryBooster 2009] c:\program files\uniblue\registrybooster\StartRegistryBooster.exe
O4 - Global Startup: PDFCreator.lnk = C:\Program Files\PDFCreator\PDFCreator.exe
O8 - Extra context menu item: Ajouter à Kaspersky Anti-Bannière - C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\ie_banner_deny.htm
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~1\Office12\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0\bin\npjpi160.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0\bin\npjpi160.dll
O9 - Extra button: Statistiques d’Anti-Virus Internet - {1F460357-8A94-4D71-9CA3-AA4ACF32ED8E} - C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\SCIEPlgn.dll
O9 - Extra button: eBay - Achetez, Vendez - {76577871-04EC-495E-A12B-91F7C3600AFA} - https://www.ebay.fr (file missing)
O9 - Extra button: Amazon.fr - {8A918C1D-E123-4E36-B562-5C1519E434CE} - https://www.amazon.fr/exec/obidos/subst/home/home.html/262-6263521-6325360?_encoding=UTF8&link_code=hom&tag=Toshibafrbholink-21 (file missing)
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~1\OFFICE11\REFIEBAR.DLL
O10 - Unknown file in Winsock LSP: c:\windows\system32\nlaapi.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\napinsp.dll
O11 - Options group: [INTERNATIONAL] International*
O13 - Gopher Prefix:
O15 - Trusted Zone: *.canalplay.com
O15 - Trusted Zone: *.canalplusactive.com
O15 - Trusted Zone: *.canalplay.com (HKLM)
O15 - Trusted Zone: *.canalplusactive.com (HKLM)
O16 - DPF: {04CB5B64-5915-4629-B869-8945CEBADD21} (Module de délivrance de certificat MINEFI) - https://static.impots.gouv.fr/abos/static/securite/certdgi1.cab
O16 - DPF: {09C21411-B9A2-4DE6-8416-4E3B58577BE0} (France Telecom MDM ActiveX Control) - http://minitelweb.minitel.com/imin_data/ocx/MDM.cab
O16 - DPF: {0CCA191D-13A6-4E29-B746-314DEE697D83} (Facebook Photo Uploader 5) - http://upload.facebook.com/controls/FacebookPhotoUploader5.cab
O16 - DPF: {7C896371-4B7F-4B34-95B1-24851F5DED24} (Microsoft Virtual Server VMRC Control) - https://granitepillar.com/vlattend/shared/MSVMRCActiveXClient.cab
O16 - DPF: {8C41EB55-37B2-40CB-8942-F169CA06DB2F} (GPAuthorization Class) - https://granitepillar.com/vlattend/shared/gpconsole.cab
O18 - Protocol: ms-help - {314111C7-A502-11D2-BBCA-00C04F8EC294} - C:\Program Files\Common Files\Microsoft Shared\Help\hxds.dll
O18 - Filter hijack: text/xml - {807563E5-5146-11D5-A672-00B0D022E945} - C:\PROGRA~1\COMMON~1\MICROS~1\OFFICE12\MSOXMLMF.DLL
O20 - AppInit_DLLs: C:\PROGRA~1\KASPER~1\KASPER~1.0\r3hook.dll,C:\PROGRA~1\KASPER~1\KASPER~1.0\adialhk.dll
O20 - Winlogon Notify: igfxcui - C:\Windows\SYSTEM32\igfxdev.dll
O20 - Winlogon Notify: klogon - C:\Windows\system32\klogon.dll
O23 - Service: Lavasoft Ad-Aware Service (aawservice) - Lavasoft - C:\Program Files\Lavasoft\Ad-Aware\aawservice.exe
O23 - Service: Acronis Scheduler2 Service (AcrSch2Svc) - Acronis - C:\Program Files\Common Files\Maxtor\Schedule2\schedul2.exe
O23 - Service: Agere Modem Call Progress Audio (AgereModemAudio) - Agere Systems - C:\Windows\system32\agrsmsvc.exe
O23 - Service: @%windir%\system32\inetsrv\iisres.dll,-30011 (AppHostSvc) - Unknown owner - %windir%\system32\svchost.exe (file missing)
O23 - Service: Kaspersky Internet Security 7.0 (AVP) - Unknown owner - C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\avp.exe" -r (file missing)
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Hyper File Server : PC-de-sebastien - PC SOFT - C:\Serveur HF\Manta.exe
O23 - Service: Intel(R) Matrix Storage Event Monitor (IAANTMON) - Intel Corporation - C:\Program Files\Intel\Intel Matrix Storage Manager\IAANTMon.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: @%windir%\system32\inetsrv\iisres.dll,-30007 (IISADMIN) - Unknown owner - %windir%\system32\inetsrv\inetinfo.exe (file missing)
O23 - Service: LexBce Server (LexBceS) - Lexmark International, Inc. - C:\Windows\System32\LEXBCES.EXE
O23 - Service: lxbc_device - - C:\Windows\system32\lxbccoms.exe
O23 - Service: MantaManager - PC SOFT - C:\Serveur HF\MantaManager.exe
O23 - Service: @%windir%\system32\inetsrv\iisres.dll,-30005 (MSFTPSVC) - Unknown owner - %windir%\system32\inetsrv\inetinfo.exe (file missing)
O23 - Service: @%SystemRoot%\system32\qwave.dll,-1 (QWAVE) - Unknown owner - %windir%\system32\svchost.exe (file missing)
O23 - Service: @%SystemRoot%\system32\seclogon.dll,-7001 (seclogon) - Unknown owner - %windir%\system32\svchost.exe (file missing)
O23 - Service: Service CANALPLAY - Canal+ Distribution - C:\Program Files\Lecteur CANALPLAY\CanalPlayService.exe
O23 - Service: TOSHIBA HDD Protection (Thpsrv) - TOSHIBA Corporation - C:\Windows\system32\ThpSrv.exe
O23 - Service: TOSHIBA Navi Support Service (TNaviSrv) - TOSHIBA Corporation - C:\Program Files\TOSHIBA\TOSHIBA DVD PLAYER\TNaviSrv.exe
O23 - Service: TOSHIBA Optical Disc Drive Service (TODDSrv) - TOSHIBA Corporation - C:\Windows\system32\TODDSrv.exe
O23 - Service: TOSHIBA Power Saver (TosCoSrv) - TOSHIBA Corporation - C:\Program Files\TOSHIBA\Power Saver\TosCoSrv.exe
O23 - Service: TOSHIBA Bluetooth Service - TOSHIBA CORPORATION - c:\Program Files\Toshiba\Bluetooth Toshiba Stack\TosBtSrv.exe
O23 - Service: @%windir%\system32\inetsrv\iisres.dll,-30003 (W3SVC) - Unknown owner - %windir%\system32\svchost.exe (file missing)
O23 - Service: @%windir%\system32\inetsrv\iisres.dll,-30001 (WAS) - Unknown owner - %windir%\system32\svchost.exe (file missing)
O23 - Service: @%ProgramFiles%\Windows Media Player\wmpnetwk.exe,-101 (WMPNetworkSvc) - Unknown owner - %ProgramFiles%\Windows Media Player\wmpnetwk.exe (file missing)