System alert!

Bonjour,
j'ai consulter les messages des autres personnes qui ont eu à faire au virus "System alert!" qui affiche en permanence un message dans le bas de l'écran...

Pourriez-vous m'aider svp

voici le résultat de l'analyse avec SmitfraudFix.exe :
SmitFraudFix v2.127

Rapport fait à 17:46:46,78, 13/04/2007
Executé à partir de C:\Documents and Settings\alexandre\Mes documents\logiciels telecharg‚s\SmitfraudFix
OS: Microsoft Windows XP [version 5.1.2600] - Windows_NT
Le type du système de fichiers est NTFS
Fix executé en mode normal

»»»»»»»»»»»»»»»»»»»»»»»» C:\

»»»»»»»»»»»»»»»»»»»»»»»» C:\WINDOWS

»»»»»»»»»»»»»»»»»»»»»»»» C:\WINDOWS\system

»»»»»»»»»»»»»»»»»»»»»»»» C:\WINDOWS\Web

»»»»»»»»»»»»»»»»»»»»»»»» C:\WINDOWS\system32

»»»»»»»»»»»»»»»»»»»»»»»» C:\WINDOWS\system32\LogFiles

»»»»»»»»»»»»»»»»»»»»»»»» C:\Documents and Settings\alexandre

»»»»»»»»»»»»»»»»»»»»»»»» C:\Documents and Settings\alexandre\Application Data

»»»»»»»»»»»»»»»»»»»»»»»» Menu Démarrer

»»»»»»»»»»»»»»»»»»»»»»»» C:\DOCUME~1\ALEXAN~1\Favoris

»»»»»»»»»»»»»»»»»»»»»»»» Bureau

»»»»»»»»»»»»»»»»»»»»»»»» C:\Program Files

»»»»»»»»»»»»»»»»»»»»»»»» Clés corrompues

»»»»»»»»»»»»»»»»»»»»»»»» Eléments du bureau

»»»»»»»»»»»»»»»»»»»»»»»» Sharedtaskscheduler
!!!Attention, les clés qui suivent ne sont pas forcément infectées!!!

SrchSTS.exe by S!Ri
Search SharedTaskScheduler's .dll

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler]
"{abef791f-947e-4cdf-83c3-e72a240afb67}"="frisbee"

[HKEY_CLASSES_ROOT\CLSID\{abef791f-947e-4cdf-83c3-e72a240afb67}\InProcServer32]
@="C:\WINDOWS\system32\ygjun.dll"

[HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{abef791f-947e-4cdf-83c3-e72a240afb67}\InProcServer32]
@="C:\WINDOWS\system32\ygjun.dll"

»»»»»»»»»»»»»»»»»»»»»»»» AppInit_DLLs
!!!Attention, les clés qui suivent ne sont pas forcément infectées!!!

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows]
"AppInit_DLLs"=""

»»»»»»»»»»»»»»»»»»»»»»»» Winlogon.System
!!!Attention, les clés qui suivent ne sont pas forcément infectées!!!

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
"System"=""

»»»»»»»»»»»»»»»»»»»»»»»» pe386-msguard-lzx32

»»»»»»»»»»»»»»»»»»»»»»»» Recherche infection wininet.dll

»»»»»»»»»»»»»»»»»»»»»»»» Fin

et voici le rapport de HijackThis.exe :

Logfile of HijackThis v1.99.1
Scan saved at 17:48:03, on 13/04/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16414)

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\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\Intel\Wireless\Bin\WLKeeper.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\brss01a.exe
C:\PROGRA~1\FICHIE~1\AOL\ACS\AOLacsd.exe
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
C:\WINDOWS\system32\Brmfrmps.exe
c:\PROGRA~1\mcafee.com\vso\mcvsrte.exe
C:\Program Files\Dell\NICCONFIGSVC\NICCONFIGSVC.exe
C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\AOLbox\Gateway\wlancfg.exe
c:\PROGRA~1\mcafee.com\vso\mcshield.exe
C:\WINDOWS\system32\igfxsrvc.exe
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxpers.exe
C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe
C:\WINDOWS\stsystra.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Intel\Wireless\bin\ZCfgSvc.exe
C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe
C:\Program Files\CyberLink\PowerDVD\DVDLauncher.exe
C:\Program Files\Dell\Media Experience\DMXLauncher.exe
C:\WINDOWS\system32\dla\tfswctrl.exe
C:\Program Files\Fichiers communs\InstallShield\UpdateService\issch.exe
C:\Program Files\Fichiers communs\AOL\ACS\AOLDial.exe
C:\Program Files\ScanSoft\PaperPort\pptd40nt.exe
C:\Program Files\Brother\ControlCenter2\brctrcen.exe
C:\PROGRA~1\mcafee.com\vso\mcvsshld.exe
c:\progra~1\mcafee.com\vso\mcvsescn.exe
C:\WINDOWS\system32\ctfmon.exe
C:\PROGRA~1\Intel\Wireless\Bin\Dot1XCfg.exe
C:\Program Files\NetWaiting\netWaiting.exe
c:\program files\mcafee.com\agent\mcagent.exe
C:\Program Files\Digital Line Detect\DLG.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\WINDOWS\explorer.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
c:\progra~1\mcafee.com\vso\mcvsftsn.exe
C:\Program Files\Messenger\msmsgs.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Brother\Brmfcmon\brmfcwnd.exe
C:\WINDOWS\NOTEPAD.EXE
C:\Documents and Settings\alexandre\Mes documents\logiciels telechargés\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = https://www.msn.com/fr-fr/?redirfallthru=http%3a%2f%2fwww.msn.fr%2fmeteo%2f%3f
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: Adobe PDF Reader Link Helper - {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: (no name) - {A6ACAE64-F798-4930-AD86-BD3FB32038DB} - C:\Program Files\Video ActiveX Object\isadd.dll (file missing)
O3 - Toolbar: AOL Toolbar - {4982D40A-C53B-4615-B15B-B5B5E98D167C} - C:\Program Files\AOL Toolbar\toolbar.dll
O3 - Toolbar: McAfee VirusScan - {BA52B914-B692-46c4-B683-905236F6F655} - c:\progra~1\mcafee.com\vso\mcvsshl.dll
O3 - Toolbar: Protection Bar - {84938242-5C5B-4A55-B6B9-A1507543B418} - C:\Program Files\Video ActiveX Object\iesplugin.dll (file missing)
O4 - HKLM\..\Run: [igfxtray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [igfxhkcmd] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [igfxpers] C:\WINDOWS\system32\igfxpers.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe
O4 - HKLM\..\Run: [SigmatelSysTrayApp] stsystra.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [ShowLOMControl]
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: [DVDLauncher] "C:\Program Files\CyberLink\PowerDVD\DVDLauncher.exe"
O4 - HKLM\..\Run: [DMXLauncher] C:\Program Files\Dell\Media Experience\DMXLauncher.exe
O4 - HKLM\..\Run: [dla] C:\WINDOWS\system32\dla\tfswctrl.exe
O4 - HKLM\..\Run: [ISUSPM Startup] "C:\Program Files\Fichiers communs\InstallShield\UpdateService\ISUSPM.exe" -startup
O4 - HKLM\..\Run: [ISUSScheduler] "C:\Program Files\Fichiers communs\InstallShield\UpdateService\issch.exe" -start
O4 - HKLM\..\Run: [AOLDialer] C:\Program Files\Fichiers communs\AOL\ACS\AOLDial.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [CloneCDTray] "C:\Program Files\SlySoft\CloneCD\CloneCDTray.exe" /s
O4 - HKLM\..\Run: [SSBkgdUpdate] "C:\Program Files\Fichiers communs\Scansoft Shared\SSBkgdUpdate\SSBkgdupdate.exe" -Embedding -boot
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: [SetDefPrt] C:\Program Files\Brother\Brmfl04a\BrStDvPt.exe
O4 - HKLM\..\Run: [ControlCenter2.0] C:\Program Files\Brother\ControlCenter2\brctrcen.exe /autorun
O4 - HKLM\..\Run: [MSKDetectorExe] C:\Program Files\McAfee\SpamKiller\MSKDetct.exe /uninstall
O4 - HKLM\..\Run: [VSOCheckTask] "c:\PROGRA~1\mcafee.com\vso\mcmnhdlr.exe" /checktask
O4 - HKLM\..\Run: [VirusScan Online] "c:\PROGRA~1\mcafee.com\vso\mcvsshld.exe"
O4 - HKLM\..\Run: [MCAgentExe] c:\PROGRA~1\mcafee.com\agent\mcagent.exe
O4 - HKLM\..\Run: [MCUpdateExe] C:\PROGRA~1\McAfee.com\Agent\mcupdate.exe
O4 - HKLM\..\Run: [RealTray] C:\Program Files\Real\RealPlayer\RealPlay.exe SYSTEMBOOTHIDEPLAYER
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [ModemOnHold] C:\Program Files\NetWaiting\netWaiting.exe
O4 - Global Startup: AOL 9.0 Icône AOL.lnk = C:\Program Files\AOL 9.0\aoltray.exe
O4 - Global Startup: Digital Line Detect.lnk = ?
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
O4 - Global Startup: Status Monitor.lnk = C:\Program Files\Brother\Brmfcmon\BrMfcWnd.exe
O8 - Extra context menu item: &Recherche AOL Toolbar - res://C:\Program Files\AOL Toolbar\toolbar.dll/SEARCH.HTML
O8 - Extra context menu item: Ouvrir l'image dans &Microsoft PhotoDraw - res://C:\PROGRA~1\MICROS~3\Office\1036\phdintl.dll/phdContext.htm
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: AOL Toolbar - {4982D40A-C53B-4615-B15B-B5B5E98D167C} - C:\Program Files\AOL Toolbar\toolbar.dll
O9 - Extra 'Tools' menuitem: AOL Toolbar - {4982D40A-C53B-4615-B15B-B5B5E98D167C} - C:\Program Files\AOL Toolbar\toolbar.dll
O9 - Extra button: (no name) - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - (no file)
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
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
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {14B87622-7E19-4EA8-93B3-97215F77A6BC} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab31267.cab
O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) - http://security.symantec.com/sscv6/SharedContent/vc/bin/AvSniff.cab
O16 - DPF: {4ED9DDF0-7479-4BBE-9335-5A1EDB1D8A21} (McAfee.com Operating System Class) - http://download.av.fr.aol.com/molbin/shared/mcinsctl/fr/4,0,0,84/mcinsctl.cab
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://by109fd.bay109.hotmail.msn.com/resources/MsnPUpld.cab
O16 - DPF: {55027008-315F-4F45-BBC3-8BE119764741} (Slide Image Uploader Control) - http://www.slide.com/uploader/SlideImageUploader.cab
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common/bin/cabsa.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsClient.cab31267.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://messenger.zone.msn.com/binary/ZIntro.cab47946.cab
O16 - DPF: {BCC0FF27-31D9-4614-A68E-C18E1ADA4389} (DwnldGroupMgr Class) - http://download.av.fr.aol.com/molbin/shared/mcgdmgr/fr/1,0,0,21/mcgdmgr.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
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxdev.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: AOL Connectivity Service (AOL ACS) - America Online, Inc. - C:\PROGRA~1\FICHIE~1\AOL\ACS\AOLacsd.exe
O23 - Service: AVG Anti-Spyware Guard - Anti-Malware Development a.s. - C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: Brother Popup Suspend service for Resource manager (brmfrmps) - Unknown owner - C:\WINDOWS\system32\Brmfrmps.exe" -service (file missing)
O23 - Service: BrSplService (Brother XP spl Service) - brother Industries Ltd - C:\WINDOWS\system32\brsvc01a.exe
O23 - Service: Intel(R) PROSet/Wireless Event Log (EvtEng) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
O23 - Service: McAfee.com McShield (McShield) - Unknown owner - c:\PROGRA~1\mcafee.com\vso\mcshield.exe
O23 - Service: McAfee SecurityCenter Update Manager (mcupdmgr.exe) - Networks Associates Technology, Inc - C:\PROGRA~1\McAfee.com\Agent\mcupdmgr.exe
O23 - Service: McAfee.com VirusScan Online Realtime Engine (MCVSRte) - Networks Associates Technology, Inc - c:\PROGRA~1\mcafee.com\vso\mcvsrte.exe
O23 - Service: NICCONFIGSVC - Dell Inc. - C:\Program Files\Dell\NICCONFIGSVC\NICCONFIGSVC.exe
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: Sony SPTI Service (SPTISRV) - Sony Corporation - C:\PROGRA~1\FICHIE~1\SONYSH~1\AVLib\Sptisrv.exe
O23 - Service: Service de lancement de WlanCfg (Wlancfg) - Inventel - C:\Program Files\AOLbox\Gateway\wlancfg.exe
O23 - Service: Intel(R) PROSet/Wireless SSO Service (WLANKEEPER) - Intel(R) Corporation - C:\Program Files\Intel\Wireless\Bin\WLKeeper.exe

Merci d'avence pour la réponse...