Virus MSN (encore!)

Bonjour,
J'ai moi aussi reçu le virus dont tout le monde parle actuellement: avast a détecté le Win32:PurityScan-Q[Trj] et je n'arrive pas à le supprimer.
Je suis un boulet du PC, je ne comprends pas grand chose à ce qu'il se dit sur les forums. J'ai tout de même réussi à comprendre qu'il fallait que je lance MSNFix, ce que j'ai fait, mais le virus n'a pas disparu. Alors j'ai lancé Hijackthis, le rapport donne ca:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 19:05:15, on 27/02/2008
Platform: Windows Vista (WinNT 6.00.1904)
MSIE: Internet Explorer v7.00 (7.00.6000.16609)
Boot mode: Normal

Running processes:
C:\Users\ZO7369~1\AppData\Local\Temp\winlogon.exe
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Windows\system32\taskeng.exe
C:\Program Files\Java\jre1.6.0_02\bin\jusched.exe
C:\Windows\System32\WLTRAY.EXE
C:\Program Files\Common Files\InstallShield\UpdateService\issch.exe
C:\Program Files\Common Files\Roxio Shared\9.0\SharedCOM\RoxWatchTray9.exe
C:\Program Files\CyberLink\PowerDVD DX\PDVDDXSrv.exe
C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe
C:\Program Files\Alwil Software\Avast4\ashDisp.exe
C:\Program Files\Google\GoogleToolbarNotifier\1.2.1128.5462\GoogleToolbarNotifier.exe
C:\Program Files\JavaCore\JavaCore.exe
C:\Program Files\ATI Technologies\ATI.ACE\CLI.EXE
C:\Windows\System32\?ecurity\r?gsvr32.exe
C:\Program Files\Digital Line Detect\DLG.exe
C:\Program Files\Dell\QuickSet\quickset.exe
C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe
C:\Program Files\ATI Technologies\ATI.ACE\CLI.exe
C:\Program Files\ATI Technologies\ATI.ACE\CLI.exe
C:\Program Files\Common Files\Roxio Shared\9.0\SharedCOM\CPSHelpRunner.exe
C:\Windows\system32\wbem\unsecapp.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Windows\System32\mobsync.exe
C:\Windows\system32\SearchFilterHost.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = https://www.bing.com/?FORM=TOOLBR&cc=fr&toHttps=1&redig=4527FFF1C12746FC9EDB535C75E80ECC
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?FORM=TOOLBR&cc=fr&toHttps=1&redig=4527FFF1C12746FC9EDB535C75E80ECC
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://actus.sfr.fr
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 =
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = https://www.bing.com/?FORM=TOOLBR&cc=fr&toHttps=1&redig=4527FFF1C12746FC9EDB535C75E80ECC
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Internet Explorer avec Club-Internet
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
F2 - REG:system.ini: UserInit=C:\Windows\system32\userinit.exe,C:\Users\ZO7369~1\AppData\Local\Temp\winlogon.exe
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Skype add-on (mastermind) - {22BF413B-C6D2-4d91-82A9-A0F997BA588C} - C:\PROGRA~1\Skype\Phone\IEPlugin\SKYPEI~1.DLL
O2 - BHO: EoRezoBHO - {64F56FC1-1272-44CD-BA6E-39723696E350} - C:\Program Files\eoRezo\EoAdv\EoRezobho.dll (file missing)
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_02\bin\ssv.dll
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O2 - BHO: Browser Address Error Redirector - {CA6319C0-31B7-401E-A518-A07C3DB8F777} - C:\Program Files\BAE\BAE.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: Barre d'outils MSN - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\MSN Toolbar\01.01.2607.0\fr\msntb.dll
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_02\bin\jusched.exe"
O4 - HKLM\..\Run: [ATICCC] "C:\Program Files\ATI Technologies\ATI.ACE\CLIStart.exe"
O4 - HKLM\..\Run: [Broadcom Wireless Manager UI] C:\Windows\system32\WLTRAY.exe
O4 - HKLM\..\Run: [ISUSScheduler] "C:\Program Files\Common Files\InstallShield\UpdateService\issch.exe" -start
O4 - HKLM\..\Run: [RoxWatchTray] "C:\Program Files\Common Files\Roxio Shared\9.0\SharedCOM\RoxWatchTray9.exe"
O4 - HKLM\..\Run: [PDVDDXSrv] "C:\Program Files\CyberLink\PowerDVD DX\PDVDDXSrv.exe"
O4 - HKLM\..\Run: [Google Desktop Search] "C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe" /startup
O4 - HKLM\..\Run: [ECenter] c:\dell\E-Center\EULALauncher.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [ISUSPM Startup] c:\PROGRA~1\COMMON~1\INSTAL~1\UPDATE~1\isuspm.exe -startup
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [Streams Drivers] C:\Users\ZO7369~1\AppData\Local\Temp\winlogon.exe
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\1.2.1128.5462\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [JavaCore] C:\Program Files\JavaCore\JavaCore.exe
O4 - HKCU\..\Run: [xInsIDE] C:\Program Files\xInsIDE\xInsIDE.exe
O4 - HKCU\..\Run: [NoDNS] C:\Program Files\\NoDNS\\NoDNS.exe
O4 - HKCU\..\Run: [WinTouch] C:\Users\Zoé\AppData\Roaming\WinTouch\WinTouch.exe
O4 - HKCU\..\Run: [SfKg6w] C:\Users\Zoé\AppData\Roaming\Microsoft\Windows\rayiou.exe
O4 - HKCU\..\Run: [Ieuu] "C:\Users\ZO7369~1\AppData\Roaming\ASEMBL~1\alg.exe" -vt yazb
O4 - HKCU\..\Run: [Zbvttzi] C:\Windows\System32\?ecurity\r?gsvr32.exe
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-19\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'SERVICE RÉSEAU')
O4 - Global Startup: Digital Line Detect.lnk = C:\Program Files\Digital Line Detect\DLG.exe
O4 - Global Startup: QuickSet.lnk = ?
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~3\Office10\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: Skype - {77BF5300-1474-4EC7-9980-D32B190E9B07} - C:\PROGRA~1\Skype\Phone\IEPlugin\SKYPEI~1.DLL
O13 - Gopher Prefix:
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
O20 - AppInit_DLLs: C:\PROGRA~1\Google\GOOGLE~1\GOEC62~1.DLL
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Ati External Event Utility - ATI Technologies Inc. - C:\Windows\system32\Ati2evxx.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: DSBrokerService - Unknown owner - C:\Program Files\DellSupport\brkrsvc.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\Common Files\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: Service de l'iPod (iPod Service) - Unknown owner - C:\Program Files\iPod\bin\iPodService.exe (file missing)
O23 - Service: RoxMediaDB9 - Sonic Solutions - C:\Program Files\Common Files\Roxio Shared\9.0\SharedCOM\RoxMediaDB9.exe
O23 - Service: Roxio Hard Drive Watcher 9 (RoxWatch9) - Sonic Solutions - C:\Program Files\Common Files\Roxio Shared\9.0\SharedCOM\RoxWatch9.exe
O23 - Service: stllssvr - MicroVision Development, Inc. - C:\Program Files\Common Files\SureThing Shared\stllssvr.exe
O23 - Service: XAudioService - Conexant Systems, Inc. - C:\Windows\system32\DRIVERS\xaudio.exe