Spyware et Autres

Bonjour,
J'ai un PC en réseau (XP SP2) qui affichait au démarrage un fond d'écran bleu et un message sur fond jaune : "Warning, spyware detected on your computer. Install an antivirus or spyware remover to clean yoour computer.
J'ai passé Avant, Spyboot, ComboFix (voir rapport ci-joint) et finalement HijackThis (rapport en fin de mail).
Le message sur fond jaune a disparu mais pas le fond d'écran bleu

Comment faire pour nettoyer correctement ce PC?

RAPPORT COMBOFIX
ComboFix 08-08-21.02 - chareyron 2008-08-22 15:39:54.1 - NTFSx86
Microsoft Windows XP Professionnel 5.1.2600.2.1252.1.1036.18.211 [GMT 2:00]
Endroit: E:\ComboFix.exe
* Création d'un nouveau point de restauration

[color=red][b]AVERTISSEMENT - LA CONSOLE DE RÉCUPÉRATION N'EST PAS INSTALLÉE SUR CETTE MACHINE !![/b][/color]
.

(((((((((((((((((((((((((((((((((((( Autres suppressions ))))))))))))))))))))))))))))))))))))))))))))))))
.

C:\Documents and Settings\All Users\Bureau\Antivirus XP 2008.lnk
C:\Documents and Settings\All Users\Menu Démarrer\Programmes\Antivirus XP 2008
C:\Documents and Settings\All Users\Menu Démarrer\Programmes\Antivirus XP 2008.lnk
C:\Documents and Settings\All Users\Menu Démarrer\Programmes\Antivirus XP 2008\Antivirus XP 2008.lnk
C:\Documents and Settings\All Users\Menu Démarrer\Programmes\Antivirus XP 2008\How to Register Antivirus XP 2008.lnk
C:\Documents and Settings\All Users\Menu Démarrer\Programmes\Antivirus XP 2008\License Agreement.lnk
C:\Documents and Settings\All Users\Menu Démarrer\Programmes\Antivirus XP 2008\Register Antivirus XP 2008.lnk
C:\Documents and Settings\All Users\Menu Démarrer\Programmes\Antivirus XP 2008\Uninstall.lnk
C:\Documents and Settings\chareyron\Application Data\rhcg7uj0e743
C:\Documents and Settings\chareyron\Cookies\chareyron@bluestreak[2].txt
C:\Documents and Settings\chareyron\Cookies\chareyron@edt02[2].txt
C:\Documents and Settings\chareyron\Cookies\chareyron@tracker.affistats[2].txt
C:\Documents and Settings\chareyron\Cookies\chareyron@trafiz[1].txt
C:\Documents and Settings\LocalService\Application Data\wsnpoem
C:\Documents and Settings\LocalService\Application Data\wsnpoem\audio.dll
C:\Program Files\rhcg7uj0e743
C:\WINDOWS\system32\blphcl7uj0e743.scr
C:\WINDOWS\system32\kernel.dll
C:\WINDOWS\system32\phcl7uj0e743.bmp
C:\WINDOWS\system32\PPHCL7UJ0E743.EXE.0.AVB
C:\WINDOWS\system32\PPHCL7UJ0E743.EXE.1.AVB
C:\WINDOWS\system32\PPHCL7UJ0E743.EXE.2.AVB
C:\WINDOWS\system32\PPHCL7UJ0E743.EXE.3.AVB
C:\WINDOWS\system32\wsnpoem
C:\WINDOWS\system32\wsnpoem\audio.dll
C:\WINDOWS\system32\wsnpoem\video.dll

.
((((((((((((((((((((((((((((( Fichiers créés 2008-07-22 to 2008-08-22 ))))))))))))))))))))))))))))))))))))
.

2008-08-06 10:03 . 2008-08-13 12:01 <REP> d-------- C:\Program Files\Registry Easy

.
(((((((((((((((((((((((((((((((((( Compte-rendu de Find3M ))))))))))))))))))))))))))))))))))))))))))))))))
.
2008-07-09 12:12 --------- d-----w C:\Program Files\CD-Rom Weka
2008-07-09 12:12 --------- d-----w C:\Documents and Settings\chareyron\Application Data\wekacd
.

((((((((((((((((((((((((((((((((( Point de chargement Reg )))))))))))))))))))))))))))))))))))))))))))))))))
.
.
*Note* les éléments vides & les éléments initiaux légitimes ne sont pas listés
REGEDIT4

[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"CTFMON.EXE"="C:\WINDOWS\system32\ctfmon.exe" [2004-08-05 13:00 15360]
"updateMgr"="C:\Program Files\Adobe\Acrobat 7.0\Reader\AdobeUpdateManager.exe" [2006-03-30 16:45 313472]
"swg"="C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe" [2007-06-14 11:44 68856]

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"IgfxTray"="C:\WINDOWS\system32\igfxtray.exe" [2005-04-05 00:22 94208]
"HotKeysCmds"="C:\WINDOWS\system32\hkcmd.exe" [2005-04-05 00:19 77824]
"Persistence"="C:\WINDOWS\system32\igfxpers.exe" [2005-04-05 00:23 114688]
"SunJavaUpdateSched"="C:\Program Files\Java\jre1.6.0_03\bin\jusched.exe" [2007-09-25 02:11 132496]
"DVDLauncher"="C:\Program Files\CyberLink\PowerDVD\DVDLauncher.exe" [2005-12-09 21:29 49152]
"DLA"="C:\WINDOWS\System32\DLA\DLACTRLW.EXE" [2005-09-08 06:20 122940]
"ISUSPM Startup"="C:\PROGRA~1\FICHIE~1\INSTAL~1\UPDATE~1\ISUSPM.exe" [2004-07-27 17:50 221184]
"ISUSScheduler"="C:\Program Files\Fichiers communs\InstallShield\UpdateService\issch.exe" [2004-07-27 17:50 81920]
"Realtime Monitor"="C:\Program Files\CA\eTrustITM\realmon.exe" [2005-12-10 01:57 274432]
"M14MAJ"="C:\M1432\m14maj.exe" [2007-12-13 13:20 208896]

[HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Run]
"CTFMON.EXE"="C:\WINDOWS\system32\CTFMON.EXE" [2004-08-05 13:00 15360]

C:\Documents and Settings\All Users\Menu D‚marrer\Programmes\D‚marrage\
Lancement rapide d'Adobe Reader.lnk - C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe [2005-09-23 22:05:26 29696]

[HKEY_USERS\.default\software\microsoft\windows\currentversion\policies\system]
"NoDispBackgroundPage"= 1 (0x1)
"NoDispScrSavPage"= 1 (0x1)

[HKEY_LOCAL_MACHINE\software\microsoft\windows\currentversion\group policy\state\S-1-5-21-607000485-22570598-312552118-1332\Scripts\Logon\[u]0[/u]\[u]0[/u]]
"Script"=Printers.vbs

[HKEY_LOCAL_MACHINE\software\microsoft\windows\currentversion\group policy\state\S-1-5-21-607000485-22570598-312552118-2257\Scripts\Logon\[u]0[/u]\[u]0[/u]]
"Script"=Printers.vbs

[HKEY_LOCAL_MACHINE\software\microsoft\security center\Monitoring\ComputerAssociatesAntiVirus]
"DisableMonitoring"=dword:00000001

[HKLM\~\services\sharedaccess\parameters\firewallpolicy\standardprofile]
"EnableFirewall"= 0 (0x0)

[HKLM\~\services\sharedaccess\parameters\firewallpolicy\standardprofile\AuthorizedApplications\List]
"%windir%\\system32\\sessmgr.exe"=
"C:\\Program Files\\CA\\SharedComponents\\iTechnology\\igateway.exe"=
"C:\\Program Files\\CA\\eTrustITM\\InoRpc.exe"=
"C:\\Program Files\\CA\\eTrustITM\\Realmon.exe"=
"C:\\Program Files\\CA\\eTrustITM\\Shellscn.exe"=

[HKLM\~\services\sharedaccess\parameters\firewallpolicy\standardprofile\IcmpSettings]
"AllowInboundEchoRequest"= 1 (0x1)

R1 GhPciScan;GhostPciScanner;C:\Program Files\Symantec\Norton Ghost 2003\ghpciscan.sys [2002-08-14 15:11]
R3 USBSTOR;Pilote de stockage de masse USB;C:\WINDOWS\system32\DRIVERS\USBSTOR.SYS [2004-08-03 23:08]
S3 OracleOraHome81ClientCache;OracleOraHome81ClientCache;C:\oracle\ora81\BIN\ONRSD.EXE [2000-10-19 11:55]

*Newly Created Service* - CATCHME
*Newly Created Service* - PROCEXP90
.
Contenu du dossier 'Scheduled Tasks/Tâches planifiées'

2008-08-13 C:\WINDOWS\Tasks\Schedule Task Weekly.job
- C:\Program Files\Registry Easy\RE.exe [2008-07-17 15:49]

2008-08-14 C:\WINDOWS\Tasks\Vérifier les mises à jour de Windows Live Toolbar.job
- C:\Program Files\Windows Live Toolbar\MSNTBUP.EXE [2006-09-27 18:39]
.
- - - - ORPHANS REMOVED - - - -

HKCU-Run-MsnMsgr - C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe

.
------- Supplementary Scan -------
.
FireFox -: Profile - C:\Documents and Settings\chareyron\Application Data\Mozilla\Firefox\Profiles\u0ej7u85.default\
FireFox -: prefs.js - STARTUP.HOMEPAGE - hxxp://en-us.start.mozilla.com/firefox?client=firefox-a&rls=org.mozilla:fr:official
.

**************************************************************************

catchme 0.3.1361 W2K/XP/Vista - rootkit/stealth malware detector by Gmer, http://www.gmer.net
Rootkit scan 2008-08-22 15:41:29
Windows 5.1.2600 Service Pack 2 NTFS

Balayage processus cachés ...

Balayage caché autostart entries ...

Balayage des fichiers cachés ...

C:\DOCUME~1\CHAREY~1\LOCALS~1\Temp\TMP4352$.TMP

Scan terminé avec succès
Les fichiers cachés: 1

**************************************************************************
.
Temps d'accomplissement: 2008-08-22 15:42:16
ComboFix-quarantined-files.txt 2008-08-22 13:42:13

Pre-Run: 71,540,973,568 octets libres
Post-Run: 71,750,213,632 octets libres

123

RAPPORT HJIACKTHIS
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 15:43, on 2008-08-22
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\SYSTEM32\DNTUS26.EXE
C:\WINDOWS\SYSTEM32\DWRCS.EXE
C:\PROGRA~1\Symantec\NORTON~1\GHOSTS~2.EXE
C:\Program Files\CA\SharedComponents\iTechnology\igateway.exe
C:\Program Files\CA\eTrustITM\InoRpc.exe
C:\Program Files\CA\eTrustITM\InoRT.exe
C:\Program Files\CA\eTrustITM\InoTask.exe
C:\Program Files\Fichiers communs\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\WINDOWS\SYSTEM32\DWRCST.exe
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxpers.exe
C:\Program Files\Java\jre1.6.0_03\bin\jusched.exe
C:\Program Files\CyberLink\PowerDVD\DVDLauncher.exe
C:\WINDOWS\System32\DLA\DLACTRLW.EXE
C:\Program Files\Fichiers communs\InstallShield\UpdateService\issch.exe
C:\Program Files\CA\eTrustITM\realmon.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\WINDOWS\explorer.exe
E:\HiJackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr/?redirfallthru=http%3a%2f%2fwww.msn.fr%2fimg%2ffr%2ffr-fr%2fdivertissement%2fcelebrites%2fgalery%2fwentworth02.jpg%3f
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.dell.com/fr-fr?c=fr&l=fr&s=gen&redirect=1
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = 192.0.1.254:80
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = 192.0.1.*;srv-ad;mairie;serv-bdc;srv-ci;<local>
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\System32\DLA\DLASHX_W.DLL
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar3.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\2.0.301.7164\swg.dll
O2 - BHO: Windows Live Toolbar Helper - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\Windows Live Toolbar\msntb.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O3 - Toolbar: Windows Live Toolbar - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\Windows Live Toolbar\msntb.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar3.dll
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [Persistence] C:\WINDOWS\system32\igfxpers.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_03\bin\jusched.exe"
O4 - HKLM\..\Run: [DVDLauncher] "C:\Program Files\CyberLink\PowerDVD\DVDLauncher.exe"
O4 - HKLM\..\Run: [DLA] C:\WINDOWS\System32\DLA\DLACTRLW.EXE
O4 - HKLM\..\Run: [ISUSPM Startup] C:\PROGRA~1\FICHIE~1\INSTAL~1\UPDATE~1\ISUSPM.exe -startup
O4 - HKLM\..\Run: [ISUSScheduler] "C:\Program Files\Fichiers communs\InstallShield\UpdateService\issch.exe" -start
O4 - HKLM\..\Run: [Realtime Monitor] "C:\Program Files\CA\eTrustITM\realmon.exe" -s
O4 - HKLM\..\Run: [M14MAJ] C:\M1432\m14maj.exe /AUTODETEC /AUTOMAJ /SILENT
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [updateMgr] "C:\Program Files\Adobe\Acrobat 7.0\Reader\AdobeUpdateManager.exe" AcRdB7_0_8 -reboot 1
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.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: Lancement rapide d'Adobe Reader.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O8 - Extra context menu item: &Windows Live Search - res://C:\Program Files\Windows Live Toolbar\msntb.dll/search.htm
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Ouvrir dans un nouvel onglet d'arrière-plan - res://C:\Program Files\Windows Live Toolbar\Components\fr-fr\msntabres.dll.mui/229?7fcbc5310fbd491bbc2c06e69b0f432c
O8 - Extra context menu item: Ouvrir dans un nouvel onglet de premier plan - res://C:\Program Files\Windows Live Toolbar\Components\fr-fr\msntabres.dll.mui/230?7fcbc5310fbd491bbc2c06e69b0f432c
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: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.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: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://www.update.microsoft.com/...
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://www.update.microsoft.com/...
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain = genas.dom
O17 - HKLM\Software\..\Telephony: DomainName = genas.dom
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: Domain = genas.dom
O23 - Service: DameWare NT Utilities 2.6 (DNTUS26) - DameWare Development LLC - C:\WINDOWS\SYSTEM32\DNTUS26.EXE
O23 - Service: DameWare Mini Remote Control (DWMRCS) - DameWare Development LLC - C:\WINDOWS\SYSTEM32\DWRCS.EXE
O23 - Service: GhostStartService - Symantec Corporation - C:\PROGRA~1\Symantec\NORTON~1\GHOSTS~2.EXE
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: iTechnology iGateway 4.0 (iGateway) - Computer Associates International, Inc. - C:\Program Files\CA\SharedComponents\iTechnology\igateway.exe
O23 - Service: Service RPC eTrust ITM (InoRPC) - Computer Associates International, Inc. - C:\Program Files\CA\eTrustITM\InoRpc.exe
O23 - Service: Service en temps réel eTrust ITM (InoRT) - Computer Associates International, Inc. - C:\Program Files\CA\eTrustITM\InoRT.exe
O23 - Service: Service des jobs eTrust ITM (InoTask) - Computer Associates International, Inc. - C:\Program Files\CA\eTrustITM\InoTask.exe
O23 - Service: Intel NCS NetService (NetSvc) - Intel(R) Corporation - C:\Program Files\Intel\PROSetWired\NCS\Sync\NetSvc.exe
O23 - Service: OracleOraHome81ClientCache - Unknown owner - C:\oracle\ora81\BIN\ONRSD.EXE