Virus ? / Rapport Hijackthis

Bonjour,
Depuis ce matin, j'ai un virus qui m'ouvre automatiquement des pages internet de sites de casinos ou de jeux en lignes.
Puis j'ai aussi une fenêtre windows qui s'ouvre avec écrit : "Avertissement : Si votre PC est infecté, il risque des dysfonctionnements, des blocages et des pertes de données. Détectez et éliminiez les virus de votre PC avant qu’ils se mettent en plca pour éviter les problèmes.
Voulez-vous installer ProtectionAssuree pour analyser votre PC et détecter les logiciels malveillants ? (Conseillé)"
J'ai aussi un message de Microsoft Visual C++ Runtime Library qui s'affiche de temps en temps :
"Buffer overrun detected!
Program : C:\WINDOWS\explorer.exe
A buffer overrun has been detected which has corrupted the program's internal state. The program cannot safely continue execution and must now be terminated."

J'ai Windows XP Edition familiale Version 2002 Service pack 2

J'ai fais un scan avec hijackthis, ça sera peut etre utile :
Merci pour votre aide !

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 19:41:04, on 20/04/2008
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:\Program Files\Intel\Wireless\Bin\EvtEng.exe
C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccProxy.exe
C:\Program Files\Fichiers communs\Symantec Shared\SNDSrvc.exe
C:\Program Files\Fichiers communs\Symantec Shared\SPBBC\SPBBCSvc.exe
C:\Program Files\Fichiers communs\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Dassault Systemes\B17\intel_a\code\bin\CATSysDemon.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\Program Files\Belkin\Logiciel Bluetooth\bin\btwdins.exe
C:\Program Files\TOSHIBA\ConfigFree\CFSvcs.exe
C:\Program Files\Cisco Systems\VPN Client\cvpnd.exe
C:\Program Files\Norton Internet Security\Norton AntiVirus\navapsvc.exe
C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Toshiba\TOSHIBA Applet\TAPPSRV.exe
C:\WINDOWS\system32\wscntfy.exe
C:\Program Files\ATI Technologies\ATI.ACE\cli.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\WINDOWS\RTHDCPL.EXE
C:\WINDOWS\AGRSMMSG.exe
C:\Program Files\Toshiba\Toshiba Applet\thotkey.exe
C:\Program Files\Synaptics\SynTP\Toshiba.exe
C:\Program Files\TOSHIBA\ConfigFree\NDSTray.exe
C:\Program Files\TOSHIBA\Tvs\TvsTray.exe
C:\Program Files\TOSHIBA\Utilitaire de zoom TOSHIBA\SmoothView.exe
C:\Program Files\TOSHIBA\Commandes TOSHIBA\TFncKy.exe
C:\WINDOWS\system32\TDispVol.exe
C:\WINDOWS\system32\TPSBattM.exe
C:\WINDOWS\System32\DLA\DLACTRLW.EXE
C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe
C:\Program Files\Intel\Wireless\bin\ZCfgSvc.exe
C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe
C:\PROGRA~1\Wanadoo\CnxMon.exe
C:\Program Files\Java\jre1.6.0_05\bin\jusched.exe
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\TOSHIBA\TOSCDSPD\toscdspd.exe
C:\PROGRA~1\Intel\Wireless\Bin\Dot1XCfg.exe
C:\Program Files\Belkin\Logiciel Bluetooth\BTTray.exe
C:\Program Files\SAGEM\SAGEM F@st 800-840\dslmon.exe
C:\Program Files\3M\PSNLite\PsnLite.exe
C:\PROGRA~1\3M\PSNLite\PSNGive.exe
C:\Program Files\ATI Technologies\ATI.ACE\cli.exe
C:\Program Files\ATI Technologies\ATI.ACE\cli.exe
C:\Program Files\Fichiers communs\Symantec Shared\Security Console\NSCSRVCE.EXE
C:\Program Files\Intel\Wireless\Bin\iFrmewrk.exe
C:\Program Files\internet explorer\iexplore.exe
C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WLLoginProxy.exe
C:\Program Files\Windows Live\Messenger\usnsvc.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Windows Live\Messenger\msnmsgr.exe
C:\Program Files\Winamp\winamp.exe
C:\WINDOWS\system32\MDM.EXE
C:\WINDOWS\explorer.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.google.fr/?gws_rd=ssl
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Search Class - {08C06D61-F1F3-4799-86F8-BE1A89362C85} - C:\PROGRA~1\Wanadoo\SEARCH~1.DLL
O3 - Toolbar: Norton Internet Security 2006 - {0B53EAC3-8D69-4b9e-9B19-A37C9A5676A7} - C:\Program Files\Fichiers communs\Symantec Shared\AdBlocking\NISShExt.dll
O3 - Toolbar: Norton AntiVirus - {C4069E3A-68F1-403E-B40E-20066696354B} - C:\Program Files\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O4 - HKLM\..\Run: [ATICCC] "C:\Program Files\ATI Technologies\ATI.ACE\cli.exe" runtime -Delay
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [AGRSMMSG] AGRSMMSG.exe
O4 - HKLM\..\Run: [THotkey] C:\Program Files\Toshiba\Toshiba Applet\thotkey.exe
O4 - HKLM\..\Run: [TPSMain] TPSMain.exe
O4 - HKLM\..\Run: [NDSTray.exe] NDSTray.exe
O4 - HKLM\..\Run: [Tvs] C:\Program Files\TOSHIBA\Tvs\TvsTray.exe
O4 - HKLM\..\Run: [SmoothView] C:\Program Files\TOSHIBA\Utilitaire de zoom TOSHIBA\SmoothView.exe
O4 - HKLM\..\Run: [TFncKy] TFncKy.exe
O4 - HKLM\..\Run: [TDispVol] TDispVol.exe
O4 - HKLM\..\Run: [DLA] C:\WINDOWS\System32\DLA\DLACTRLW.EXE
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [IntelZeroConfig] "C:\Program Files\Intel\Wireless\bin\ZCfgSvc.exe"
O4 - HKLM\..\Run: [IntelWireless] "C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe" /tf Intel PROSet/Wireless
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [ktnaa666] RUNDLL32.EXE w2693762.dll,n 006aa6600000000a2693762
O4 - HKLM\..\Run: [WooCnxMon] C:\PROGRA~1\Wanadoo\CnxMon.exe
O4 - HKLM\..\Run: [WOOWATCH] C:\PROGRA~1\Wanadoo\Watch.exe
O4 - HKLM\..\Run: [Adobe Photo Downloader] "C:\Program Files\Adobe\Photoshop Album Edition Découverte\3.0\Apps\apdproxy.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_05\bin\jusched.exe"
O4 - HKLM\..\Run: [2853b7c7] rundll32.exe "C:\WINDOWS\system32\hthaxmxj.dll",b
O4 - HKLM\..\Run: [BM2b60845b] Rundll32.exe "C:\WINDOWS\system32\lnpolwdi.dll",s
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [TOSCDSPD] C:\Program Files\TOSHIBA\TOSCDSPD\toscdspd.exe
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Program Files\Fichiers communs\Ahead\lib\NMBgMonitor.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 - Global Startup: BTTray.lnk = ?
O4 - Global Startup: DSLMON.lnk = C:\Program Files\SAGEM\SAGEM F@st 800-840\dslmon.exe
O4 - Global Startup: Post-it® Software Notes Lite.lnk = C:\Program Files\3M\PSNLite\PsnLite.exe
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Envoyer à &Bluetooth - C:\Program Files\Belkin\Logiciel Bluetooth\btsendto_ie_ctx.htm
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: @btrez.dll,-4015 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\Belkin\Logiciel Bluetooth\btsendto_ie.htm
O9 - Extra 'Tools' menuitem: @btrez.dll,-4017 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\Belkin\Logiciel Bluetooth\btsendto_ie.htm
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: Messager Wanadoo - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\PROGRA~1\WANADO~1\Wanadoo Messager.exe (file missing)
O9 - Extra 'Tools' menuitem: Messager Wanadoo - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\PROGRA~1\WANADO~1\Wanadoo Messager.exe (file missing)
O9 - Extra button: Wanadoo - {1462651F-F4BA-4C76-A001-C4284D0FE16E} - https://www.orange.fr/portail (file missing) (HKCU)
O16 - DPF: {029FDBA6-3547-11D7-AA4C-0050BF051A00} (Rawflow ICD Client) - http://s.tf1.fr/mmdia/static/rawflow/clients/5.3.1.0/Rawflow.cab
O16 - DPF: {22945A69-1191-4DCF-9E6F-409BDE94D101} - http://louk.solidworks.com/htdocs/pdownload/edrawings/e2007sp02/cab/eModelsStandard.cab
O16 - DPF: {2D2BEE6E-3C9A-4D58-B9EC-458EDB28D0F6} -
O16 - DPF: {5C6698D9-7BE4-4122-8EC5-291D84DBD4A0} - http://upload.facebook.com/controls/FacebookPhotoUploader2.cab
O16 - DPF: {5D6F45B3-9043-443D-A792-115447494D24} (UnoCtrl Class) - http://messenger.zone.msn.com/FR-FR/a-UNO1/GAME_UNO1.cab
O16 - DPF: {5ED80217-570B-4DA9-BF44-BE107C0EC166} (Windows Live Safety Center Base Module) - http://cdn.scan.onecare.live.com/resource/download/scanner/wlscbase370.cab
O16 - DPF: {5F8469B4-B055-49DD-83F7-62B522420ECC} (Facebook Photo Uploader Control) - http://upload.facebook.com/controls/FacebookPhotoUploader.cab
O16 - DPF: {67DABFBF-D0AB-41FA-9C46-CC0F21721616} (DivXBrowserPlugin Object) - http://download.divx.com/player/DivXBrowserPlugin.cab
O16 - DPF: {6E5E167B-1566-4316-B27F-0DDAB3484CF7} (Image Uploader Control) - http://www.wistiti.fr/ImageUploader4.cab
O16 - DPF: {87056D28-9730-4A47-B9F9-7E890B62C58A} (WildfireActiveXHost Class) - http://www.gamehouse.com/realarcade-webgames/tumblebugs/axhost.cab
O16 - DPF: {ABB660B6-6694-407B-950A-EDBA5A159722} (DVC Download Control) - http://www.gamehouse.com/realarcade-webgames/thedavincicode/DVCDownloadControl.cab
O16 - DPF: {B64F4A7C-97C9-11DA-8BDE-F66BAD1E3F3A} -
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (MSN Games - Installer) - http://messenger.zone.msn.com/binary/ZIntro.cab56649.cab
O16 - DPF: {BFF1950D-B1B4-4AE8-B842-B2CCF06D9A1B} (Zylom Games Player) - http://game08.zylom.com/activex/zylomgamesplayer.cab
O16 - DPF: {C3F79A2B-B9B4-4A66-B012-3EE46475B072} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab56907.cab
O16 - DPF: {DF780F87-FF2B-4DF8-92D0-73DB16A1543A} (PopCapLoader Object) - http://www.gamehouse.com/realarcade-webgames/zuma/popcaploader.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{D7C1C735-617C-4A52-A137-E20172D41BFF}: NameServer = 80.10.246.2,80.10.246.129
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Backbone Service (BBDemon) - Dassault Systemes - C:\Program Files\Dassault Systemes\B17\intel_a\code\bin\CATSysDemon.exe
O23 - Service: ##Id_String1.6844F930_1628_4223_B5CC_5BB94B879762## (Bonjour Service) - Apple Computer, Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: Bluetooth Service (btwdins) - Broadcom Corporation. - C:\Program Files\Belkin\Logiciel Bluetooth\bin\btwdins.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Internet Security Password Validation (ccISPwdSvc) - Symantec Corporation - C:\Program Files\Norton Internet Security\ccPwdSvc.exe
O23 - Service: Symantec Network Proxy (ccProxy) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccProxy.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.exe
O23 - Service: ConfigFree Service (CFSvcs) - TOSHIBA CORPORATION - C:\Program Files\TOSHIBA\ConfigFree\CFSvcs.exe
O23 - Service: COM Host (comHost) - Symantec Corporation - C:\Program Files\Norton Internet Security\comHost.exe
O23 - Service: Cisco Systems, Inc. VPN Service (CVPND) - Cisco Systems, Inc. - C:\Program Files\Cisco Systems\VPN Client\cvpnd.exe
O23 - Service: Intel(R) PROSet/Wireless Event Log (EvtEng) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Program Files\Fichiers communs\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Groove Installer Service (GrooveInstallerService) - Groove Networks, Inc. - C:\Program Files\Groove Networks\Groove\Bin\GrooveInstallerService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: LiveUpdate - Symantec Corporation - C:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~1.EXE
O23 - Service: LVSrvLauncher - Labtec Inc. - C:\Program Files\Fichiers communs\LogiShrd\SrvLnch\SrvLnch.exe
O23 - Service: Service Norton AntiVirus Auto-Protect (navapsvc) - Symantec Corporation - C:\Program Files\Norton Internet Security\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton Protection Center Service (NSCService) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\Security Console\NSCSRVCE.EXE
O23 - Service: Planificateur LiveUpdate automatique - Symantec Corporation - C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
O23 - Service: Ray - Unknown owner - C:\Program Files\Dassault Systemes\B\rayserver.exe (file missing)
O23 - Service: Intel(R) PROSet/Wireless Registry Service (RegSrvc) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
O23 - Service: Intel(R) PROSet/Wireless Service (S24EventMonitor) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
O23 - Service: Symantec AVScan (SAVScan) - Symantec Corporation - C:\Program Files\Norton Internet Security\Norton AntiVirus\SAVScan.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 Core LC - Unknown owner - C:\Program Files\Fichiers communs\Symantec Shared\CCPD-LC\symlcsvc.exe
O23 - Service: TOSHIBA Application Service (TAPPSRV) - TOSHIBA Corp. - C:\Program Files\Toshiba\TOSHIBA Applet\TAPPSRV.exe