win32 horst b

salut voila a chaque demarage de mon pc avast dectecte un trojan et impossible de le suprimer voici le rapport de hjackthLogfile of HijackThis v1.99.1
Scan saved at 19:02:24, on 11/04/2006
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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\drivers\CDAC11BA.EXE
C:\Program Files\Securitoo\av_fw\fswsclds.exe
C:\PROGRA~1\Iomega\System32\AppServices.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\MsPMSPSv.exe
C:\Program Files\Iomega\AutoDisk\ADService.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\Roxio\Easy CD Creator 6\AudioCentral\RxMon.exe
C:\Program Files\Iomega\AutoDisk\ADUserMon.exe
C:\Program Files\Iomega\DriveIcons\ImgIcon.exe
C:\Program Files\HP\hpcoretech\hpcmpmgr.exe
C:\Program Files\Roxio\Easy CD Creator 6\AudioCentral\Playlist.exe
C:\Program Files\TechCity Solutions\AliceSAV\AliceAgent.exe
C:\Program Files\Picasa2\PicasaMediaDetector.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\PROGRA~1\AGNITUM\TAUSCA~1.7\taumon.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\WinZip\WZQKPICK.EXE
C:\Program Files\Yahoo!\Messenger\ymsgr_tray.exe
C:\Program Files\HP\Digital Imaging\bin\hpqgalry.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\SANDRA\Bureau\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.aliceadsl.fr/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://fr.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://fr.rd.yahoo.com/customize/ie/defaults/su/ymsgr6/...*http://fr.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://fr.rd.yahoo.com/customize/ie/defaults/sb/ymsgr6/...*http://www.yahoo.com/ext/search/search.html
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://fr.yahoo.com
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://fr.rd.yahoo.com/customize/ycomp/defaults/su/*http://fr.yahoo.com
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Alice ADSL
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = localhost
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn18\yt.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O4 - HKLM\..\Run: [Windows Update] C:\WINDOWS\System32\lvdlsa.exe
O4 - HKLM\..\Run: [RoxioEngineUtility] "C:\Program Files\Fichiers communs\Roxio Shared\System\EngUtil.exe"
O4 - HKLM\..\Run: [RoxioAudioCentral] "C:\Program Files\Roxio\Easy CD Creator 6\AudioCentral\RxMon.exe"
O4 - HKLM\..\Run: [ADUserMon] C:\Program Files\Iomega\AutoDisk\ADUserMon.exe
O4 - HKLM\..\Run: [Iomega Drive Icons] C:\Program Files\Iomega\DriveIcons\ImgIcon.exe
O4 - HKLM\..\Run: [HP Component Manager] "C:\Program Files\HP\hpcoretech\hpcmpmgr.exe"
O4 - HKLM\..\Run: [PL2210Z] C:\WINDOWS\P221ZI98.exe
O4 - HKLM\..\Run: [AliceSAV] C:\Program Files\TechCity Solutions\AliceSAV\AliceAgent.exe
O4 - HKLM\..\Run: [Picasa Media Detector] C:\Program Files\Picasa2\PicasaMediaDetector.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [Eye On Network] C:\Program Files\Eye On Network\Eye On Network.exe
O4 - HKLM\..\Run: [Tau Monitor] C:\PROGRA~1\AGNITUM\TAUSCA~1.7\taumon.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Yahoo! Pager] "C:\Program Files\Yahoo!\Messenger\ypager.exe" -quiet
O4 - HKCU\..\Run: [Blwm] C:\Documents and Settings\SANDRA\Application Data\eest.exe
O4 - Startup: Yahoo! Widget Engine.lnk = C:\Program Files\Yahoo!\WidgetEngine\YahooWidgetEngine.exe
O4 - Global Startup: Microsoft Recherche accélérée.lnk = C:\Program Files\Microsoft Office\Office\FINDFAST.EXE
O4 - Global Startup: Démarrage rapide du logiciel HP Image Zone.lnk = C:\Program Files\HP\Digital Imaging\bin\hpqthb08.exe
O4 - Global Startup: WinZip Quick Pick.lnk = C:\Program Files\WinZip\WZQKPICK.EXE
O8 - Extra context menu item: &Traduire à partir de l'anglais - res://c:\program files\google\GoogleToolbar2.dll/cmwordtrans.html
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~3\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Pages liées - res://c:\program files\google\GoogleToolbar2.dll/cmbacklinks.html
O8 - Extra context menu item: Pages similaires - res://c:\program files\google\GoogleToolbar2.dll/cmsimilar.html
O8 - Extra context menu item: Recherche &Google - res://c:\program files\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: Version de la page actuelle disponible dans le cache Google - res://c:\program files\google\GoogleToolbar2.dll/cmcache.html
O9 - Extra button: Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\PROGRA~1\YAHOO!\COMMON\yhexbmesfr.dll
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\PROGRA~1\YAHOO!\COMMON\yhexbmesfr.dll
O9 - Extra button: Messager Wanadoo - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\PROGRA~1\WANADO~1\Wanadoo Messager.exe (file missing)
O9 - Extra 'Tools' menuitem: Messager Wanadoo - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\PROGRA~1\WANADO~1\Wanadoo Messager.exe (file missing)
O16 - DPF: teleir_cert - https://static.ir.dgi.minefi.gouv.fr/secure/connexion/a...
O16 - DPF: {505098FD-5D61-4BC2-9B82-F969D0E932A2} (EGEGAUTH Class) - http://akamai.downloadv3.com/binaries/P2EClient/EGAUTH_...
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://v5.windowsupdate.microsoft.com/v5consumer/V5Cont...
O16 - DPF: {EF99BD32-C1FB-11D2-892F-0090271D4F88} (Yahoo! Toolbar) - http://us.dl1.yimg.com/download.companion.yahoo.com/dl/...
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - Unknown owner - 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: C-DillaCdaC11BA - Macrovision - C:\WINDOWS\system32\drivers\CDAC11BA.EXE
O23 - Service: F-Secure Windows Security Center Legacy Detection Service (Fswsclds) - F-Secure Corporation - C:\Program Files\Securitoo\av_fw\fswsclds.exe
O23 - Service: Iomega App Services - Iomega Corporation - C:\PROGRA~1\Iomega\System32\AppServices.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\System32\HPZipm12.exe
O23 - Service: Windows Log - Unknown owner - C:\WINDOWS\system32\nvsvcd.exe
O23 - Service: Iomega Active Disk (_IOMEGA_ACTIVE_DISK_SERVICE_) - Iomega Corporation - C:\Program Files\Iomega\AutoDisk\ADService.exe

is si qq un peut m aider merci