Virus: About:blank + startpage

Bonjour à tous,

depuis quelques temps, j'ai certains virus dont je ne suis pas capable de me débarasser. En fait j'en ai deux qui sont sans doute reliés: About:blank et startpage. J'ai scanné mon ordi avec Spybot + adaware + norton anti virus et rien ne fonctionne. En lisant sur ccm j'ai appris qu'avec hijackthis je peux régler mon problème donc voici le scan que j'ai obtenu, si un pro peut me dire quoi faire suite à ce résultat:

Logfile of HijackThis v1.99.0
Scan saved at 17:47:07, on 2005-02-03
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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.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\ccEvtMgr.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\System32\NILaunch.exe
C:\Program Files\QuickTime\qttask.exe
C:\WINDOWS\System32\spool\drivers\w32x86\3\hpztsb05.exe
C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mm_tray.exe
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\WINDOWS\system32\ctfmon.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
E:\lotus\smartctr\suitest.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
E:\lotus\organize\easyclip.exe
C:\Program Files\Yahoo!\Messenger\ymsgr_tray.exe
C:\Program Files\Fichiers communs\Microsoft Shared\VS7Debug\mdm.exe
C:\Program Files\Norton AntiVirus\navapsvc.exe
C:\Program Files\Norton AntiVirus\IWP\NPFMntor.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Fichiers communs\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\WINDOWS\System32\MsPMSPSv.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\WinRAR\WinRAR.exe
C:\DOCUME~1\steve\LOCALS~1\Temp\Rar$EX02.690\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\DOCUME~1\steve\LOCALS~1\Temp\sp.dll/sp.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://red.clientapps.yahoo.com/customize/ie/defaults/stp/ymsgr*http://my.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://red.clientapps.yahoo.com/customize/ie/defaults/su/ymsgr/*http://www.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,SearchAssistant = http://www.websearch.com/ie.aspx?tb_id=50031
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,CustomizeSearch = res://C:\PROGRA~1\Toolbar\toolbar.dll/sa
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\DOCUME~1\steve\LOCALS~1\Temp\sp.dll/sp.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = res://C:\PROGRA~1\Toolbar\toolbar.dll/sa
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://red.clientapps.yahoo.com/customize/ie/defaults/su/ymsgr/*http://www.yahoo.com
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
F2 - REG:system.ini: UserInit=C:\WINDOWS\System32\Userinit.exe
O2 - BHO: (no name) - {34AE6800-B442-20E8-8757-60557CD52849} - C:\WINDOWS\System32\dyij.dll (file missing)
O2 - BHO: PCTools Site Guard - {5C8B2A36-3DB1-42A4-A3CB-D426709BBFEB} - D:\Steven\SPYWAR~1\tools\iesdsg.dll (file missing)
O2 - BHO: (no name) - {65FA3806-B11A-74BB-8757-60557CD47B1E} - C:\WINDOWS\System32\zzmo.dll (file missing)
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O2 - BHO: (no name) - {FB2230AB-CB5B-44A0-929C-AF4556AF59D6} - C:\WINDOWS\system32\ceoc.dll
O2 - BHO: OsbornTech Popup Blocker - {FF1BF4C7-4E08-4A28-A43F-9D60A9F7A880} - C:\WINDOWS\System32\mshelper.dll (file missing)
O3 - Toolbar: (no name) - {339BB23F-A864-48C0-A59F-29EA915965EC} - (no file)
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O4 - HKLM\..\Run: [Net-It Launcher] C:\WINDOWS\System32\NILaunch.exe
O4 - HKLM\..\Run: [CloneCDElbyCDFL] "e:\Elaborate Bytes\CloneCD\ElbyCheck.exe" /L ElbyCDFL
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [HPDJ Taskbar Utility] C:\WINDOWS\System32\spool\drivers\w32x86\3\hpztsb05.exe
O4 - HKLM\..\Run: [MessengerPlus2] "C:\Program Files\Messenger Plus! 2\MsgPlus.exe"
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [MMTray] C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mm_tray.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [popupeclair] C:\Program Files\Popup Eclair\popupeclair.exe
O4 - HKCU\..\Run: [Yahoo! Pager] C:\Program Files\Yahoo!\Messenger\ypager.exe -quiet
O4 - HKCU\..\Run: [Spyware Vanisher] d:\spywarevanisher-free\FreeScanner.exe -FastScan
O4 - Startup: Lotus SuiteStart.lnk = E:\lotus\smartctr\suitest.exe
O4 - Startup: Lotus QuickStart.lnk = E:\lotus\wordpro\ltsstart.exe
O4 - Startup: Lotus Organizer EasyClip.lnk = E:\lotus\organize\easyclip.exe
O4 - Startup: Alarms.LNK = C:\DTS\PROGRAMS\DTSALARM.EXE
O4 - Startup: PowerReg Scheduler.exe
O4 - Global Startup: Microsoft Office.lnk = E:\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://E:\MICROS~1\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: Yahoo! Dictionary - file:///C:\Program Files\Yahoo!\Common/ycdict.htm
O8 - Extra context menu item: Yahoo! Search - file:///C:\Program Files\Yahoo!\Common/ycsrch.htm
O9 - Extra button: Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\Program Files\Yahoo!\Messenger\yhexbmes0411.dll
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\Program Files\Yahoo!\Messenger\yhexbmes0411.dll
O9 - Extra button: AOL Instant Messenger (SM) - {AC9E2541-2814-11d5-BC6D-00B0D0A1DE45} - C:\Program Files\AIM95\aim.exe (file missing)
O9 - Extra button: (no name) - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - (no file)
O9 - Extra button: Popup Eclair Bypass - {ECC5777A-6E88-BFCE-13CE-81F134789E7B} - C:\Program Files\Popup Eclair\addbypass.exe (file missing)
O9 - Extra 'Tools' menuitem: Popup Eclair Bypass - {ECC5777A-6E88-BFCE-13CE-81F134789E7B} - C:\Program Files\Popup Eclair\addbypass.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
O12 - Plugin for .mpeg: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin3.dll
O16 - DPF: FreedomAudio - http://download.worldchessnetwork.com/freedomaudio/freedominstaller.cab
O16 - DPF: JT's Blocks - http://download.games.yahoo.com/games/clients/y/blt1_x.cab
O16 - DPF: Yahoo! Backgammon - http://download.games.yahoo.com/games/clients/y/at0_x.cab
O16 - DPF: Yahoo! Chat - http://us.chat1.yimg.com/us.yimg.com/i/chat/applet/c381/chat.cab
O16 - DPF: Yahoo! Chess - http://download.games.yahoo.com/games/clients/y/ct0_x.cab
O16 - DPF: Yahoo! Games Roomlist - http://us.games2.yimg.com/download.yahoo.com/games/clients/y/akamai_test21_x.cab
O16 - DPF: Yahoo! Go - http://download.games.yahoo.com/games/clients/y/gt2_x.cab
O16 - DPF: Yahoo! Pool 2 - http://download.games.yahoo.com/games/clients/y/pote_x.cab
O16 - DPF: {00B71CFB-6864-4346-A978-C0A14556272C} (Checkers Class) - http://messenger.zone.msn.com/binary/msgrchkr.cab
O16 - DPF: {084DAC27-6FA3-4F55-9005-033F2F102F5C} (ITPPDiagIE Class) - http://downloads.winwise.fr/Common/npwwg.cab
O16 - DPF: {1C78AB3F-A857-482E-80C0-3A1E5238A565} - ms-its:mhtml:file://C:\ss.MHT!http://toolbar.isearch.com/install/00012/chm.chm::/files/initial.cab
O16 - DPF: {1D4DB7D2-6EC9-47A3-BD87-1E41684E07BB} - http://ak.imgfarm.com/images/nocache/funwebproducts/ei/CursorManiaInitialSetup1.0.0.8.cab
O16 - DPF: {2917297F-F02B-4B9D-81DF-494B6333150B} (Minesweeper Flags Class) - http://messenger.zone.msn.com/binary/MineSweeper.cab
O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) - http://security.symantec.com/sscv6/SharedContent/vc/bin/AvSniff.cab
O16 - DPF: {41F17733-B041-4099-A042-B518BB6A408C} - http://a1540.g.akamai.net/7/1540/52/20011004/qtinstall.info.apple.com/qt503/fr/win/QuickTimeInstaller.exe
O16 - DPF: {4ED9DDF0-7479-4BBE-9335-5A1EDB1D8A21} - http://bin.mcafee.com/molbin/shared/mcinsctl/en-us/4,0,0,76/mcinsctl.cab
O16 - DPF: {56336BCB-3D8A-11D6-A00B-0050DA18DE71} (RdxIE Class) - http://software-dl.real.com/1761bc38a9e10efd3806/netzip/RdxIE601.cab
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common/bin/cabsa.cab
O16 - DPF: {665585FD-2068-4C5E-A6D3-53AC3270ECD4} (FileSharingCtrl Class) - http://appdirectory.messenger.msn.com/AppDirectory/P4Apps/FileSharing/en/filesharingctrl.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsClient.cab
O16 - DPF: {9EB320CE-BE1D-4304-A081-4B4665414BEF} - http://www.mt-download.com/MediaTicketsInstaller.cab
O16 - DPF: {A17E30C4-A9BA-11D4-8673-60DB54C10000} (YahooYMailTo Class) - http://us.dl1.yimg.com/download.yahoo.com/dl/installs/yse/ymmapi_416.dll
O16 - DPF: {C2FCEF52-ACE9-11D3-BEBD-00105AA9B6AE} (Symantec RuFSI Registry Information Class) - http://security.symantec.com/SSC/SharedContent/common/bin/cabsa.cab
O16 - DPF: {D18F962A-3722-4B59-B08D-28BB9EB2281E} (PhotosCtrl Class) - http://photos.yahoo.com/ocx/us/yexplorer1_9us.cab
O16 - DPF: {EF791A6B-FC12-4C68-99EF-FB9E207A39E6} (McFreeScan Class) - http://download.mcafee.com/molbin/iss-loc/vso/en-us/tools/mcfscan/1,5,0,4312/mcfscan.cab
O16 - DPF: {F58E1CEF-A068-4C15-BA5E-587CAF3EE8C6} (MSN Chat Control 4.5) - http://fdl.msn.com/public/chat/msnchat45.cab
O16 - DPF: {F6BF0D00-0B2A-4A75-BF7B-F385591623AF} (Solitaire Showdown Class) - http://messenger.zone.msn.com/binary/SolitaireShowdown.cab
O18 - Filter: text/html - {DD19430D-32B7-4B12-AC03-0FDA52206D9F} - C:\WINDOWS\system32\ceoc.dll
O18 - Filter: text/plain - {DD19430D-32B7-4B12-AC03-0FDA52206D9F} - C:\WINDOWS\system32\ceoc.dll
O23 - Service: AVG7 Alert Manager Server - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: Symantec Event Manager - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Settings Manager - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.exe
O23 - Service: Service d'administration du Gestionnaire de disque logique - Unknown - C:\WINDOWS\System32\dmadmin.exe
O23 - Service: Journal des événements - Unknown - C:\WINDOWS\system32\services.exe
O23 - Service: Service COM de gravage de CD IMAPI - Unknown - C:\WINDOWS\System32\imapi.exe
O23 - Service: Partage de Bureau à distance NetMeeting - Unknown - C:\WINDOWS\System32\mnmsrvc.exe
O23 - Service: Service Norton AntiVirus Auto-Protect - Symantec Corporation - C:\Program Files\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton AntiVirus Firewall Monitor Service - Symantec Corporation - C:\Program Files\Norton AntiVirus\IWP\NPFMntor.exe
O23 - Service: NVIDIA Driver Helper Service - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: Plug-and-Play - Unknown - C:\WINDOWS\system32\services.exe
O23 - Service: Gestionnaire de session d'aide sur le Bureau à distance - Unknown - C:\WINDOWS\system32\sessmgr.exe
O23 - Service: SAVScan - Symantec Corporation - C:\Program Files\Norton AntiVirus\SAVScan.exe
O23 - Service: ScriptBlocking Service - Symantec Corporation - C:\PROGRA~1\FICHIE~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: Carte à puce - Unknown - C:\WINDOWS\System32\SCardSvr.exe
O23 - Service: Symantec Network Drivers Service - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec SPBBCSvc - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\SPBBC\SPBBCSvc.exe
O23 - Service: Symantec Core LC - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\CCPD-LC\symlcsvc.exe
O23 - Service: Journaux et alertes de performance - Unknown - C:\WINDOWS\system32\smlogsvc.exe
O23 - Service: Telnet - Unknown - C:\WINDOWS\System32\tlntsvr.exe
O23 - Service: Cliché instantané de volume - Unknown - C:\WINDOWS\System32\vssvc.exe
O23 - Service: Carte de performance WMI - Unknown - C:\WINDOWS\System32\wbem\wmiapsrv.exe

Comme je ne suis pas un pro, j'ai besoin de savoir en détails la marche à suivre pour la suite.... Merci