Mon ordi envoie des mails de spam à la pelle

Bonjour,
Mon ordi envoie des miliers de mails et je n'arrive pas à les bloquer.
J'ai passé toute sorte d'antivirus sans trouver quoi que ce soit.
J'ai fait l'analyse automatique sur www.hijackthis.de/fr et tout semble bon.
Y a t-il quelqu'un qui pourrait me dire ce que je dois faire svp ?
voici le log hijackthis à tout hasard.

Merci d'avance pour votre aide.

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 00:01:44, on 26/06/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16674)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\csrss.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:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\WLTRYSVC.EXE
C:\WINDOWS\System32\bcmwltry.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
C:\Program Files\Fichiers communs\Symantec Shared\SPBBC\SPBBCSvc.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\System32\SCardSvr.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\cisvc.exe
C:\Program Files\Symantec AntiVirus\DefWatch.exe
C:\Program Files\Symantec\Norton Ghost 2003\GhostStartService.exe
d:\ptc\fileserver3.4\i486_nt\obj\nfsserv.exe
C:\Program Files\Fichiers communs\Microsoft Shared\VS7DEBUG\MDM.EXE
d:\ptc\fileserver3.4\i486_nt\obj\nfsserv.exe
C:\Program Files\AT&T Global Network Client\netcfgsvr.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\OCS Inventory Agent\ocsservice.exe
D:\ptc\osa\oraprod\bin\agntsrvc.exe
C:\Program Files\Apoint\Apoint.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe
C:\PROGRA~1\SYMANT~1\VPTray.exe
C:\WINDOWS\system32\WLTRAY.exe
C:\WINDOWS\system32\rundll32.exe
C:\Program Files\VMware\VMware Workstation\vmware-tray.exe
C:\Program Files\VMware\VMware Workstation\hqtray.exe
C:\Program Files\Symantec\Norton Ghost 2003\GhostStartTrayApp.exe
C:\Program Files\Java\jre1.6.0_02\bin\jusched.exe
C:\Program Files\SuperCopier2\SuperCopier2.exe
C:\Program Files\Apoint\Apntex.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\DAEMON Tools Lite\daemon.exe
C:\WINDOWS\BricoPacks\Crystal Clear\RocketDock\RocketDock.exe
C:\WINDOWS\BricoPacks\Crystal Clear\UberIcon\UberIcon Manager.exe
C:\WINDOWS\BricoPacks\Crystal Clear\YzShadow\YzShadow.exe
C:\WINDOWS\BricoPacks\Crystal Clear\YzToolbar\YzToolBar.exe
C:\progra~1\rsyncd\cygrunsrv.exe
C:\WINDOWS\system32\cmd.exe
C:\Program Files\Symantec AntiVirus\SavRoam.exe
C:\progra~1\rsyncd\rsync.exe
C:\WINDOWS\system32\svchost.exe
d:\ptc\osa\oraprod\bin\dbsnmp.exe
C:\Program Files\Symantec AntiVirus\Rtvscan.exe
C:\Program Files\VMware\VMware Workstation\vmware-authd.exe
C:\Program Files\Fichiers communs\VMware\VMware Virtual Image Editing\vmount2.exe
C:\WINDOWS\system32\vmnat.exe
C:\WINDOWS\system32\vmnetdhcp.exe
C:\WINDOWS\System32\alg.exe
C:\WINDOWS\system32\taskmgr.exe
C:\WINDOWS\system32\cidaemon.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\SDFix\a2cmd.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WLLoginProxy.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
C:\WINDOWS\system32\wbem\wmiprvse.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
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Windows Internet Explorer fourni par PCO Technologies
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,AutoConfigURL = http://web-proxy.pcotech.fr/proxy.pac
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = proxy:8080
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O1 - Hosts: 139.160.132.211 oldjupiter
O1 - Hosts: 139.160.132.165 callisto
O1 - Hosts: 139.160.132.161 melusine
O1 - Hosts: 139.160.132.159 uranus
O1 - Hosts: 139.160.132.153 thetys
O1 - Hosts: 139.160.132.157 deimos
O1 - Hosts: 139.160.68.90 picasso
O1 - Hosts: 139.160.132.189 astarte
O1 - Hosts: 139.160.132.195 moisi
O1 - Hosts: 139.160.32.100 asterix
O1 - Hosts: 157.198.238.11 mrlsv002
O1 - Hosts: 139.158.132.244 ibisco
O1 - Hosts: 139.158.178.93 oiz
O1 - Hosts: 139.158.205.105 sagb00801
O1 - Hosts: 139.160.49.107 ottawa
O1 - Hosts: 139.158.170.87 goya
O1 - Hosts: 139.158.168.15 olga
O1 - Hosts: 139.158.188.6 maria
O1 - Hosts: 139.158.178.93 oiz
O1 - Hosts: 157.198.238.45 proi
O1 - Hosts: 139.160.134.166 wxfr37844D
O1 - Hosts: 139.160.134.121 oldjupiter-win
O1 - Hosts: 139.158.179.50 ega
O1 - Hosts: 139.158.61.188 renault
O1 - Hosts: 139.160.64.254 nova2
O1 - Hosts: 139.160.132.241 poirot
O1 - Hosts: 213.239.219.83 l2authd.lineage2.com # m0o age
O1 - Hosts: 213.239.219.83 L2testauthd.lineage2.com #m0o age
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Fichiers communs\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_02\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O4 - HKLM\..\Run: [Apoint] C:\Program Files\Apoint\Apoint.exe
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [vptray] C:\PROGRA~1\SYMANT~1\VPTray.exe
O4 - HKLM\..\Run: [Broadcom Wireless Manager UI] C:\WINDOWS\system32\WLTRAY.exe
O4 - HKLM\..\Run: [BluetoothAuthenticationAgent] rundll32.exe bthprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [vmware-tray] C:\Program Files\VMware\VMware Workstation\vmware-tray.exe
O4 - HKLM\..\Run: [VMware hqtray] "C:\Program Files\VMware\VMware Workstation\hqtray.exe"
O4 - HKLM\..\Run: [GhostStartTrayApp] C:\Program Files\Symantec\Norton Ghost 2003\GhostStartTrayApp.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_02\bin\jusched.exe"
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKCU\..\Run: [SuperCopier2.exe] C:\Program Files\SuperCopier2\SuperCopier2.exe
O4 - HKCU\..\Run: [NetSP - restore settings on power failure] "C:\Program Files\AT&T Global Network Client\NetSP.exe" -show
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [DAEMON Tools Lite] "C:\Program Files\DAEMON Tools Lite\daemon.exe"
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - Startup: RocketDock.lnk = C:\WINDOWS\BricoPacks\Crystal Clear\RocketDock\RocketDock.exe
O4 - Startup: UberIcon.lnk = C:\WINDOWS\BricoPacks\Crystal Clear\UberIcon\UberIcon Manager.exe
O4 - Startup: Y'z Shadow.lnk = C:\WINDOWS\BricoPacks\Crystal Clear\YzShadow\YzShadow.exe
O4 - Startup: Y'z Toolbar.lnk = C:\WINDOWS\BricoPacks\Crystal Clear\YzToolbar\YzToolBar.exe
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_02\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_02\bin\ssv.dll
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\WINDOWS\bdoscandel.exe
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner v8 - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\WINDOWS\bdoscandel.exe
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} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.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
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://www.bitdefender.fr/scan_fr/scan8/oscan8.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://www.update.microsoft.com/...
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain = pcotech.idcad.com
O17 - HKLM\Software\..\Telephony: DomainName = pcotech.idcad.com
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: Domain = pcotech.idcad.com
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: SearchList = fr.schneider-electric.com
O17 - HKLM\System\CS2\Services\Tcpip\Parameters: Domain = pcotech.idcad.com
O17 - HKLM\System\CS2\Services\Tcpip\Parameters: SearchList = fr.schneider-electric.com
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: SearchList = fr.schneider-electric.com
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FICHIE~1\Skype\SKYPE4~1.DLL
O20 - Winlogon Notify: twain32 - C:\WINDOWS\SYSTEM32\twain32.dll
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.exe
O23 - Service: Symantec AntiVirus Definition Watcher (DefWatch) - Symantec Corporation - C:\Program Files\Symantec AntiVirus\DefWatch.exe
O23 - Service: FLEXlm server for PTC - Macrovision Corporation - d:\ptc\flexnet\i486_nt\obj\lmgrd.exe
O23 - Service: GhostStartService - Symantec Corporation - C:\Program Files\Symantec\Norton Ghost 2003\GhostStartService.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: Intralink Fileserver - PTC - d:\ptc\fileserver3.4\i486_nt\obj\nfsserv.exe
O23 - Service: LiveUpdate - Symantec Corporation - C:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~1.EXE
O23 - Service: Network Configuration Service (netcfgsvr) - AT&T - C:\Program Files\AT&T Global Network Client\netcfgsvr.exe
O23 - Service: OCS INVENTORY SERVICE (OCS INVENTORY) - http://ocsinventory.sourceforge.net - C:\Program Files\OCS Inventory Agent\ocsservice.exe
O23 - Service: OracleOSIA_ORAAgent - Oracle Corporation - D:\ptc\osa\oraprod\bin\agntsrvc.exe
O23 - Service: OracleOSIA_ORAClientCache - Unknown owner - D:\ptc\osa\oraprod\BIN\ONRSD.EXE
O23 - Service: rsyncd - Unknown owner - C:\progra~1\rsyncd\cygrunsrv.exe
O23 - Service: SAVRoam (SavRoam) - symantec - C:\Program Files\Symantec AntiVirus\SavRoam.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec SPBBCSvc (SPBBCSvc) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\SPBBC\SPBBCSvc.exe
O23 - Service: Symantec AntiVirus - Symantec Corporation - C:\Program Files\Symantec AntiVirus\Rtvscan.exe
O23 - Service: VMware Agent Service (ufad-ws60) - VMware, Inc. - C:\Program Files\VMware\VMware Workstation\vmware-ufad.exe
O23 - Service: VMware Authorization Service (VMAuthdService) - VMware, Inc. - C:\Program Files\VMware\VMware Workstation\vmware-authd.exe
O23 - Service: VMware DHCP Service (VMnetDHCP) - VMware, Inc. - C:\WINDOWS\system32\vmnetdhcp.exe
O23 - Service: VMware Virtual Mount Manager Extended (vmount2) - VMware, Inc. - C:\Program Files\Fichiers communs\VMware\VMware Virtual Image Editing\vmount2.exe
O23 - Service: VMware NAT Service - VMware, Inc. - C:\WINDOWS\system32\vmnat.exe
O23 - Service: Dell Wireless WLAN Tray Service (wltrysvc) - Unknown owner - C:\WINDOWS\System32\WLTRYSVC.EXE