Virus trojan obfus 6 gen

Bonjour,
en vacances chez mes parents, je me suis un peu penchée sur leurs problèmes d'extinction intempestive de leur pc.
Après avoir fait un Spybot, un CCleaner, un Adawar et un Avast pas de souci particulier.

Je me suis alors tournée vers Bitdefender pour un scan en ligne et là bingo: 1 virus trouvé trojan obfus 6 gen et 7 fichiers infectés.

Or bitdefender ne peut les désinfecter et vu leur emplacement C\System Volume Information\_restore ..... je ne me sens pas de les supprimer sans savoir vraiment si ça va nuire plus que le virus ou pas.

Il s'agit d'un pc tournant sous Windows XP familial

Bitdefender m'indique que le virus se trouve dans les fichiers suivants:
C\Systeme Volume Information\_restore{BE468811-B5E7-474C-BDAB-971573B8EE50}\RP592\AO655793.EXE
C\Systeme Volume Information\_restore{BE468811-B5E7-474C-BDAB-971573B8EE50}\RP592\AO655794.EXE
C\Systeme Volume Information\_restore{BE468811-B5E7-474C-BDAB-971573B8EE50}\RP592\AO655795.EXE
C\Systeme Volume Information\_restore{BE468811-B5E7-474C-BDAB-971573B8EE50}\RP596\AO660119.EXE
C\Systeme Volume Information\_restore{BE468811-B5E7-474C-BDAB-971573B8EE50}\RP596\AO660120.EXE
C\Systeme Volume Information\_restore{BE468811-B5E7-474C-BDAB-971573B8EE50}\RP596\AO660123.EXE
C\Systeme Volume Information\_restore{BE468811-B5E7-474C-BDAB-971573B8EE50}\RP596\AO660124.EXE

Bitdefender indique avoir tenté une désinfection et que cela est impossible, que dois-je faire?
Le supprimer comme il me le propose ou l'ignorer et tenter par un autre moyen de déloger le trojan?

Je vous joins également le loghijackthis réalisé avant toute manipulation.
Logfile of HijackThis v1.99.1
Scan saved at 18:58:06, on 21/01/2008
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\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\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\System32\brsvc01a.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\System32\brss01a.exe
C:\WINDOWS\System32\FTRTSVC.exe
C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\lxctcoms.exe
C:\Program Files\Spyware Doctor\svcntaux.exe
C:\Program Files\Spyware Doctor\swdsvc.exe
C:\Program Files\Spyware Doctor\SDTrayApp.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Windows Media Player\WMPNetwk.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\System32\alg.exe
C:\Program Files\Phoenix Technologies Ltd\RecoverPro_XP\VBPTASK.EXE
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe
C:\WINDOWS\AGRSMMSG.exe
C:\PROGRA~1\Logitech\MOUSEW~1\SYSTEM\EM_EXEC.EXE
C:\PROGRA~1\MESSAG~1\StartMessager.exe
C:\WINDOWS\system32\LVCOMSX.EXE
C:\Program Files\Logitech\Video\LogiTray.exe
C:\Program Files\Java\jre1.6.0_03\bin\jusched.exe
C:\Program Files\Scansoft\PaperPort\pptd40nt.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\eBay\eBay Toolbar2\eBayTBDaemon.exe
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\Program Files\Lexmark 5400 Series\lxctmon.exe
C:\Program Files\Lexmark 5400 Series\ezprint.exe
C:\Program Files\Logitech\Video\FxSvr2.exe
C:\Program Files\Fichiers communs\InstallShield\UpdateService\issch.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\Program Files\Skype\Phone\Skype.exe
C:\Program Files\Windows Media Player\WMPNSCFG.exe
C:\Program Files\Panasonic\LUMIXSimpleViewer\PhLeAutoRun.exe
C:\Program Files\MSN Messenger\usnsvc.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Hijackthis Version Française\VERSION TRADUITE ORIGINALE.EXE

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.mozilla.org/fr/firefox/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.connect-we.fr/
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr/?redirfallthru=http%3a%2f%2fwww.msn.fr%2fnhotmail%2fhelp%2f%3f
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Wanadoo
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
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
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: Lexmark Barre d'outils - {1017A80C-6F09-4548-A84D-EDD6AC9525F0} - C:\Program Files\Lexmark Toolbar\toolband.dll
O2 - BHO: eBay Toolbar Helper - {22D8E815-4A5E-4DFB-845E-AAB64207F5BD} - C:\Program Files\eBay\eBay Toolbar2\eBayTB.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Jeux\Spybot\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar4.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\2.1.615.5858\swg.dll
O2 - BHO: NTIECatcher Class - {C56CB6B0-0D96-11D6-8C65-B2868B609932} - C:\Jeux\Xi\NetTransport 2\NTIEHelper.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: eBay Toolbar - {92085AD4-F48A-450D-BD93-B28CC7DF67CE} - C:\Program Files\eBay\eBay Toolbar2\eBayTB.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar4.dll
O3 - Toolbar: Lexmark Barre d'outils - {1017A80C-6F09-4548-A84D-EDD6AC9525F0} - C:\Program Files\Lexmark Toolbar\toolband.dll
O4 - HKLM\..\Run: [RestoreIT!] "C:\Program Files\Phoenix Technologies Ltd\RecoverPro_XP\VBPTASK.EXE" VBStart
O4 - HKLM\..\Run: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [RemoteControl] "C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe"
O4 - HKLM\..\Run: [PinnacleDriverCheck] C:\WINDOWS\System32\PSDrvCheck.exe
O4 - HKLM\..\Run: [AGRSMMSG] AGRSMMSG.exe
O4 - HKLM\..\Run: [EM_EXEC] C:\PROGRA~1\Logitech\MOUSEW~1\SYSTEM\EM_EXEC.EXE
O4 - HKLM\..\Run: [MessagerStarter Wanadoo] C:\PROGRA~1\MESSAG~1\StartMessager.exe Messager Wanadoo
O4 - HKLM\..\Run: [WOOWATCH] C:\PROGRA~1\Wanadoo\Watch.exe
O4 - HKLM\..\Run: [WOOTASKBARICON] C:\PROGRA~1\Wanadoo\GestMaj.exe TaskBarIcon.exe
O4 - HKLM\..\Run: [LVCOMSX] C:\WINDOWS\system32\LVCOMSX.EXE
O4 - HKLM\..\Run: [LogitechVideoRepair] C:\Program Files\Logitech\Video\ISStart.exe
O4 - HKLM\..\Run: [LogitechVideoTray] C:\Program Files\Logitech\Video\LogiTray.exe
O4 - HKLM\..\Run: [LogitechGalleryRepair] C:\Program Files\Logitech\Video\ISStart.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_03\bin\jusched.exe"
O4 - HKLM\..\Run: [PaperPort PTD] C:\Program Files\Scansoft\PaperPort\pptd40nt.exe
O4 - HKLM\..\Run: [IndexSearch] C:\Program Files\Scansoft\PaperPort\IndexSearch.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [eBayToolbar] C:\Program Files\eBay\eBay Toolbar2\eBayTBDaemon.exe
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [Google Desktop Search] "C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe" /startup
O4 - HKLM\..\Run: [SDTray] "C:\Program Files\Spyware Doctor\SDTrayApp.exe"
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [lxctmon.exe] "C:\Program Files\Lexmark 5400 Series\lxctmon.exe"
O4 - HKLM\..\Run: [Lexmark 5400 Series Fax Server] "C:\Program Files\Lexmark 5400 Series\fm3032.exe" /s
O4 - HKLM\..\Run: [EzPrint] "C:\Program Files\Lexmark 5400 Series\ezprint.exe"
O4 - HKLM\..\Run: [LXCTCATS] rundll32 C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\LXCTtime.dll,_RunDLLEntry@16
O4 - HKLM\..\Run: [SSBkgdUpdate] C:\Program Files\Fichiers communs\Scansoft Shared\SSBkgdUpdate\SSBkgdupdate.exe -Embedding -boot
O4 - HKLM\..\Run: [DNS7reminder] "C:\Program Files\Nuance\NaturallySpeaking9\Program\ereg.exe" -r "C:\Program Files\Nuance\NaturallySpeaking9\Program\ereg.ini"
O4 - HKLM\..\Run: [ISUSPM Startup] C:\PROGRA~1\FICHIE~1\INSTAL~1\UPDATE~1\ISUSPM.exe -startup
O4 - HKLM\..\Run: [ISUSScheduler] "C:\Program Files\Fichiers communs\InstallShield\UpdateService\issch.exe" -start
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [LogitechSoftwareUpdate] "C:\Program Files\Logitech\Video\ManifestEngine.exe" boot
O4 - HKCU\..\Run: [WOOKIT] C:\PROGRA~1\Wanadoo\Shell.exe appLaunchClientZone.shl|DEFAULT=cnx|PARAM=
O4 - HKCU\..\Run: [ItLauncherAutoStart] C:\PROGRA~1\JEUXCL~1\bin\ITLAUN~1.EXE -Embedding /AutoStart
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [Skype] "C:\Program Files\Skype\Phone\Skype.exe" /nosplash /minimized
O4 - HKCU\..\Run: [WMPNSCFG] C:\Program Files\Windows Media Player\WMPNSCFG.exe
O4 - Global Startup: LUMIX Simple Viewer.lnk = ?
O8 - Extra context menu item: &Recherche AOL Toolbar - res://C:\Program Files\AOL Toolbar\toolbar.dll/SEARCH.HTML
O8 - Extra context menu item: Recherche sur eBay - res://C:\Program Files\eBay\eBay Toolbar2\eBayTb.dll/RCSearch.html
O8 - Extra context menu item: Télécharger avec Star Downloader - C:\Jeux\PM\Star Downloader\sdie.htm
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - %windir%\bdoscandel.exe (file missing)
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner v8 - {85d1f590-48f4-11d9-9669-0800200c9a66} - %windir%\bdoscandel.exe (file missing)
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\System32\Shdocvw.dll
O14 - IERESET.INF: START_PAGE_URL=http://www.connect-we.fr/
O16 - DPF: {084DAC27-6FA3-4F55-9005-033F2F102F5C} (ITPPDiagIE Class) - http://data.jeuxclassiques.com/npwwg.cab
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://martinecoustumer.spaces.live.com//PhotoUpload/MsnPUpld.cab
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://www.bitdefender.fr/scan_fr/scan8/oscan8.cab
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/...
O16 - DPF: {7FC1B346-83E6-4774-8D20-1A6B09B0E737} (Windows Live Photo Upload Control) - http://ludomaton.spaces.live.com/PhotoUpload/MsnPUpld.cab
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://acs.pandasoftware.com/activescan/as5free/asinst.cab
O16 - DPF: {BCC0FF27-31D9-4614-A68E-C18E1ADA4389} - http://download.mcafee.com/molbin/shared/mcgdmgr/fr/1,0,0,20/mcgdmgr.cab
O16 - DPF: {BFF1950D-B1B4-4AE8-B842-B2CCF06D9A1B} (Zylom Games Player) - http://game01.zylom.com/activex/zylomgamesplayer.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FICHIE~1\Skype\SKYPE4~1.DLL
O20 - AppInit_DLLs: C:\PROGRA~1\Google\GOOGLE~4\GOEC62~1.DLL
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: BrSplService (Brother XP spl Service) - brother Industries Ltd - C:\WINDOWS\System32\brsvc01a.exe
O23 - Service: France Telecom Routing Table Service (FTRTSVC) - France Telecom - C:\WINDOWS\System32\FTRTSVC.exe
O23 - Service: GoogleDesktopManager - Google - C:\Program Files\Google\Google Desktop Search\GoogleDesktop.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: lxct_device - - C:\WINDOWS\system32\lxctcoms.exe
O23 - Service: PC Tools Auxiliary Service (sdAuxService) - PC Tools - C:\Program Files\Spyware Doctor\svcntaux.exe
O23 - Service: PC Tools Security Service (sdCoreService) - PC Tools - C:\Program Files\Spyware Doctor\swdsvc.exe


Merci par avance à ceux qui auront la patience de se pencher sur mon cas.

-Juliane561-