Trojan crypt.XPACK.gen / win32.backdoor.small

Bonjour,

Le scan d'ANTIVIR donne le TR/Crypt.XPACK.gen présent dans:
winnt\system32\asfspice.exe
winnt\system32\cru629.dat
Documents and Settings\all users.aawqff

Le scan de Adaware 2008 donne la présence de:
win32.backdoor.small (malware niveau élevé) dans winnt\system32\cru629.dat

Malgré la requête de les mettre en quarantaine ou de les enlever, je les retrouve au scan suivant.

voici le log de Hijackthis:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 22:04:17, on 19/07/2008
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)
Boot mode: Normal

Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\csrss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\Program Files\a-squared Free\a2service.exe
C:\Program Files\Avira\AntiVir PersonalEdition Classic\sched.exe
C:\Program Files\Avira\AntiVir PersonalEdition Classic\avguard.exe
C:\Program Files\Symantec\Norton Ghost 2003\GhostStartService.exe
C:\PROGRA~1\Iomega\System32\AppServices.exe
C:\Program Files\AVM\NetWAYS\NETWSERV.EXE
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\Program Files\Spyware Doctor\pctsAuxs.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\UMonit2K.exe
C:\Program Files\Ahead\InCD\InCD.exe
C:\Program Files\Iomega\AutoDisk\ADUserMon.exe
C:\Program Files\Java\j2re1.4.2_05\bin\jusched.exe
C:\WINNT\system32\mspmspsv.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\WINNT\system32\svchost.exe
C:\Program Files\Common Files\Logitech\QCDriver2\LVCOMS.EXE
C:\Program Files\Iomega\AutoDisk\ADService.exe
C:\WINNT\system32\sistray.EXE
C:\WINNT\system32\keyhook.exe
C:\WINNT\system32\RunDll32.exe
C:\Program Files\Avira\AntiVir PersonalEdition Classic\avgnt.exe
C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
C:\Program Files\Spyware Doctor\pctsTray.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\Program Files\Kodak\KODAK Software Updater\7288971\Program\Kodak Software Updater.exe
C:\Program Files\Kodak\Kodak EasyShare software\bin\EasyShare.exe
C:\Program Files\Wireless LAN Utility\SiWake.exe
C:\Program Files\Wireless LAN Utility\SISCFG.exe
C:\Program Files\Yahoo!\Messenger\ymsgr_tray.exe
C:\Program Files\AVM\NetWAYS\AVMIKE.EXE
C:\WINNT\system32\wuauclt.exe
C:\Program Files\AVM\NetWAYS\CERTSRV.EXE
C:\WINNT\system32\ZoneLabs\vsmon.exe
C:\Program Files\Spyware Doctor\pctsSvc.exe
C:\WINNT\System32\svchost.exe
C:\Program Files\Lavasoft\Ad-Aware\aawservice.exe
C:\WINNT\system32\WISPTIS.EXE
C:\WINNT\explorer.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\Microsoft Office\OFFICE11\WINWORD.EXE
C:\HJT\scan.exe

O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\System32\msdxm.ocx
O3 - Toolbar: MSN - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\MSN Apps\MSN Toolbar\MSN Toolbar\01.02.5000.1021\fr-be\msntb.dll
O3 - Toolbar: WordReferenceEnFr - {5776A2BC-D803-47F6-9DC0-8344DB8D604C} - C:\Program Files\langues\WordReferenceEnFr\tbu1AB\wordreferenceEnFr.dll (file missing)
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar3.dll
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [Gene USB Monitor] C:\WINNT\system32\UMonit2K.exe
O4 - HKLM\..\Run: [NeroCheck] C:\WINNT\system32\\NeroCheck.exe
O4 - HKLM\..\Run: [InCD] C:\Program Files\Ahead\InCD\InCD.exe
O4 - HKLM\..\Run: [ADUserMon] C:\Program Files\Iomega\AutoDisk\ADUserMon.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_05\bin\jusched.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [LVCOMS] C:\Program Files\Common Files\Logitech\QCDriver2\LVCOMS.EXE
O4 - HKLM\..\Run: [QuickTime Task] "C:\program files\quicktime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [SiS Tray] C:\WINNT\system32\sistray.EXE
O4 - HKLM\..\Run: [SiS Windows KeyHook] C:\WINNT\system32\keyhook.exe
O4 - HKLM\..\Run: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKLM\..\Run: [avgnt] "C:\Program Files\Avira\AntiVir PersonalEdition Classic\avgnt.exe" /min
O4 - HKLM\..\Run: [ZoneAlarm Client] "C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKLM\..\Run: [ISTray] "C:\Program Files\Spyware Doctor\pctsTray.exe"
O4 - HKLM\..\RunServicesOnce: [washindex] C:\Program Files\Washer\washidx.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [Yahoo! Pager] C:\Program Files\Yahoo!\Messenger\ypager.exe -quiet
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKUS\.DEFAULT\..\Run: [internat.exe] internat.exe (User 'Default user')
O4 - HKUS\.DEFAULT\..\RunOnce: [^SetupICWDesktop] C:\Program Files\Internet Explorer\Connection Wizard\icwconn1.exe /desktop (User 'Default user')
O4 - Global Startup: KODAK Software Updater.lnk = C:\Program Files\Kodak\KODAK Software Updater\7288971\Program\Kodak Software Updater.exe
O4 - Global Startup: Logiciel Kodak EasyShare.lnk = C:\Program Files\Kodak\Kodak EasyShare software\bin\EasyShare.exe
O4 - Global Startup: SiWake.lnk = C:\Program Files\Wireless LAN Utility\SiWake.exe
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINNT\System32\msjava.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINNT\System32\msjava.dll
O9 - Extra button: Run WinHTTrack - {36ECAF82-3300-8F84-092E-AFF36D6C7040} - F:\ProgrammesF\WinHTTrack\WinHTTrackIEBar.dll (file missing)
O9 - Extra 'Tools' menuitem: Launch WinHTTrack - {36ECAF82-3300-8F84-092E-AFF36D6C7040} - F:\ProgrammesF\WinHTTrack\WinHTTrackIEBar.dll (file missing)
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\WINNT\bdoscandel.exe
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner v8 - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\WINNT\bdoscandel.exe
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: ppctlcab - http://69.44.122.156/scanner/ppctlcab.cab
O16 - DPF: {2359626E-7524-4F87-B04E-22CD38A0C88C} (ICSScannerLight Class) - http://download.zonelabs.com/bin/free/cm/ICSCM.cab
O16 - DPF: {2FC9A21E-2069-4E47-8235-36318989DB13} (PPSDKActiveXScanner.MainScreen) - http://69.44.122.156/scanner/axscanner.cab
O16 - DPF: {56336BCB-3D8A-11D6-A00B-0050DA18DE71} (RdxIE Class) - http://software-dl.real.com/28bbcaa8d20e81795a05/netzip/RdxIE601_fr.cab
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://www.bitdefender.fr/scan_fr/scan8/oscan8.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/...
O16 - DPF: {7F8C8173-AD80-4807-AA75-5672F22B4582} (ICSScanner Class) - https://www.zonealarm.com/
O16 - DPF: {9B03C5F1-F5AB-47EE-937D-A8EDA626F876} (Anonymizer Anti-Spyware Scanner) - https://www.zonealarm.com/
O16 - DPF: {A18962F6-E6ED-40B1-97C9-1FB36F38BFA8} (Aurigma Image Uploader 3.5 Control) - http://www.extrafilm.be/net/Import/ImageUploader3.cab
O16 - DPF: {A73BAEFA-EE65-494D-BEDB-DD3E5A34FA98} (Image Uploader) - http://www.extrafilm.be/ImageUploader4.cab
O20 - AppInit_DLLs: C:\WINNT\system32\cru629.dat
O23 - Service: a-squared Free Service (a2free) - Emsi Software GmbH - C:\Program Files\a-squared Free\a2service.exe
O23 - Service: Lavasoft Ad-Aware Service (aawservice) - Lavasoft - C:\Program Files\Lavasoft\Ad-Aware\aawservice.exe
O23 - Service: AntiVir PersonalEdition Classic Scheduler (AntiVirScheduler) - Avira GmbH - C:\Program Files\Avira\AntiVir PersonalEdition Classic\sched.exe
O23 - Service: AntiVir PersonalEdition Classic Guard (AntiVirService) - Avira GmbH - C:\Program Files\Avira\AntiVir PersonalEdition Classic\avguard.exe
O23 - Service: Application Management AppMgmtClipSrv (AppMgmtClipSrv) - Unknown owner - C:\WINNT\system32\asfsipce.exe (file missing)
O23 - Service: Microsoft ASPI Manager (aspimgr) - Unknown owner - C:\WINNT\system32\aspimgr.exe (file missing)
O23 - Service: AVM IKE Service for NetWAYS ISDN (avmike) - AVM Berlin - C:\Program Files\AVM\NetWAYS\AVMIKE.EXE
O23 - Service: AVM CERT Service for NetWAYS ISDN (certsrv) - Unknown owner - C:\Program Files\AVM\NetWAYS\CERTSRV.EXE
O23 - Service: Logical Disk Manager Administrative Service (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: GhostStartService - Symantec Corporation - C:\Program Files\Symantec\Norton Ghost 2003\GhostStartService.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Iomega App Services - Iomega Corporation - C:\PROGRA~1\Iomega\System32\AppServices.exe
O23 - Service: Kodak Camera Connection Software (KodakCCS) - Eastman Kodak Company - C:\WINNT\system32\drivers\KodakCCS.exe
O23 - Service: AVM NetWAYS ISDN (NetWAYS Service) - Unknown owner - C:\Program Files\AVM\NetWAYS\NETWSERV.EXE
O23 - Service: AVM Crypt Service for NetWAYS ISDN (nwcrypt) - Unknown owner - C:\Program Files\AVM\NetWAYS\NWCRYPT.EXE
O23 - Service: PC Tools Auxiliary Service (sdAuxService) - PC Tools - C:\Program Files\Spyware Doctor\pctsAuxs.exe
O23 - Service: PC Tools Security Service (sdCoreService) - PC Tools - C:\Program Files\Spyware Doctor\pctsSvc.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINNT\system32\ZoneLabs\vsmon.exe
O23 - Service: Iomega Active Disk (_IOMEGA_ACTIVE_DISK_SERVICE_) - Iomega Corporation - C:\Program Files\Iomega\AutoDisk\ADService.exe
O24 - Desktop Component 0: (no name) - http://books.google.com/images/cleardot.gif