Probleme virus ???

Voila mon pc deconne depuis peu, y a t'il un souci de virus ?
voici mon log hijack :

Logfile of HijackThis v1.99.1
Scan saved at 17:47:43, on 13/02/2006
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\System32\basfipm.exe
C:\WINDOWS\System32\drivers\CDAC11BA.EXE
c:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.exe
c:\Program Files\Symantec AntiVirus\DefWatch.exe
c:\program files\dell printers\Additional Color Laser Software\Status Monitor\DLSDBNT.EXE
C:\Program Files\Intel\Intel Application Accelerator\iaantmon.exe
C:\PROGRA~1\Iomega\System32\AppServices.exe
C:\WINDOWS\System32\svchost.exe
c:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
c:\program files\dell printers\Additional Color Laser Software\Status Monitor\DLPWDNT.EXE
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\wscntfy.exe
C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe
C:\Program Files\Intel\Intel Application Accelerator\iaanotif.exe
C:\WINDOWS\system32\dla\tfswctrl.exe
C:\Program Files\Fichiers communs\Sonic\Update Manager\sgtray.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe
C:\PROGRA~1\SYMANT~1\VPTray.exe
C:\Program Files\QuickTime\qttask.exe
C:\Program Files\Winamp3\winampa.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Iomega\Iomega Automatic Backup\ibackup.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
C:\Program Files\Vg\VirtuaGirl2.exe
C:\WINDOWS\system32\wuauclt.exe
C:\BUREAU D'ETUDE\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.dell.ca/index.htm
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://g.msn.fr/0SEFRFR/SAOS02
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.msn.fr/
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.msn.fr/
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://www.dell.ca/index.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\system32\dla\tfswshx.dll
O2 - BHO: ST - {9394EDE7-C8B5-483E-8773-474BF36AF6E4} - C:\Program Files\MSN Apps\ST\01.03.0000.1005\en-xu\stmain.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar3.dll
O2 - BHO: MSNToolBandBHO - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\MSN Apps\MSN Toolbar\MSN Toolbar\01.02.5000.1021\fr\msntb.dll
O3 - Toolbar: MSN - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\MSN Apps\MSN Toolbar\MSN Toolbar\01.02.5000.1021\fr\msntb.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar3.dll
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe
O4 - HKLM\..\Run: [IAAnotif] C:\Program Files\Intel\Intel Application Accelerator\iaanotif.exe
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [dla] C:\WINDOWS\system32\dla\tfswctrl.exe
O4 - HKLM\..\Run: [UpdateManager] "C:\Program Files\Fichiers communs\Sonic\Update Manager\sgtray.exe" /r
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: [DLPSP] "c:\program files\dell printers\Additional Color Laser Software\Status Monitor\DLPSP.EXE"
O4 - HKLM\..\Run: [Iomega Automatic Backup 1.0.1] C:\Program Files\Iomega\Iomega Automatic Backup\ibackup.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [Synchronization Manager] %SystemRoot%\system32\mobsync.exe /logon
O4 - HKLM\..\Run: [WinampAgent] "C:\Program Files\Winamp3\winampa.exe"
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Iomega Automatic Backup] C:\Program Files\Iomega\Iomega Automatic Backup\ibackup.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - Startup: VirtuaGirl2.lnk = C:\Program Files\Vg\VirtuaGirl2.exe
O4 - Global Startup: Lancement rapide d'Adobe Reader.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O8 - Extra context menu item: &Traduire à partir de l'anglais - res://c:\program files\google\GoogleToolbar3.dll/cmwordtrans.html
O8 - Extra context menu item: Pages liées - res://c:\program files\google\GoogleToolbar3.dll/cmbacklinks.html
O8 - Extra context menu item: Pages similaires - res://c:\program files\google\GoogleToolbar3.dll/cmsimilar.html
O8 - Extra context menu item: Recherche &Google - res://c:\program files\google\GoogleToolbar3.dll/cmsearch.html
O8 - Extra context menu item: Version de la page actuelle disponible dans le cache Google - res://c:\program files\google\GoogleToolbar3.dll/cmcache.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2_03\bin\npjpi142_03.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2_03\bin\npjpi142_03.dll
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: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O17 - HKLM\System\CCS\Services\Tcpip\..\{15DD2CCB-5994-4120-9889-271AA00AF97E}: NameServer = 192.168.10.254
O17 - HKLM\System\CS1\Services\Tcpip\..\{15DD2CCB-5994-4120-9889-271AA00AF97E}: NameServer = 192.168.10.254
O17 - HKLM\System\CS2\Services\Tcpip\..\{15DD2CCB-5994-4120-9889-271AA00AF97E}: NameServer = 192.168.10.254
O17 - HKLM\System\CS3\Services\Tcpip\..\{15DD2CCB-5994-4120-9889-271AA00AF97E}: NameServer = 192.168.10.254
O18 - Protocol: brx - {9C160F90-74D1-11D3-AB60-0060977C1F29} - C:\Program Files\Fichiers communs\BricsCad\BrxProtIE.dll
O20 - Winlogon Notify: NavLogon - c:\WINDOWS\System32\NavLogon.dll
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: Autodesk Licensing Service - Autodesk, Inc. - C:\Program Files\Fichiers communs\Autodesk Shared\Service\AdskScSrv.exe
O23 - Service: Broadcom ASF IP monitoring service v6.0.4 (BAsfIpM) - Broadcom Corp. - C:\WINDOWS\System32\basfipm.exe
O23 - Service: C-DillaCdaC11BA - Macrovision - C:\WINDOWS\System32\drivers\CDAC11BA.EXE
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - c:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation (ccPwdSvc) - Symantec Corporation - c:\Program Files\Fichiers communs\Symantec Shared\ccPwdSvc.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: Dell Printer Status Watcher (DLPWD) - Dell Inc. - c:\program files\dell printers\Additional Color Laser Software\Status Monitor\DLPWDNT.EXE
O23 - Service: Dell Printer Status Database (DLSDB) - Dell Inc. - c:\program files\dell printers\Additional Color Laser Software\Status Monitor\DLSDBNT.EXE
O23 - Service: IAA Event Monitor (IAANTMon) - Intel Corporation - C:\Program Files\Intel\Intel Application Accelerator\iaantmon.exe
O23 - Service: Iomega App Services - Iomega Corporation - C:\PROGRA~1\Iomega\System32\AppServices.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 AntiVirus - Symantec Corporation - c:\Program Files\Symantec AntiVirus\Rtvscan.exe

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