Hi,
My norton internet security tells me the trojan startpage is present on my computer but does not remove it. I am not an expert and I have just analysed my computer with hijackthis. I can not access my mailbox anymore and my startpage is a "about:blank" page.
Here is the result. Coul someone tell me which lines have to be removed and which not. Thanks in advance :

Logfile of HijackThis v1.99.0
Scan saved at 1646, on 06/02/2005
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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\ccEvtMgr.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\PROGRA~1\Wanadoo\TaskbarIcon.exe
C:\PROGRA~1\Wanadoo\CnxMon.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccProxy.exe
C:\Program Files\Norton Internet Security\Norton AntiVirus\navapsvc.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe
C:\Program Files\Norton Internet Security\Norton AntiVirus\SAVScan.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Alcatel\SpeedTouch USB\Dragdiag.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\Fichiers communs\Microsoft Shared\Works Shared\WkUFind.exe
C:\PROGRA~1\MESSAG~1\StartMessager.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\Fichiers communs\RTE\RTEGPRS.exe
C:\Program Files\Messenger\msmsgs.exe
c:\progra~1\intern~1\iexplore.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpohmr08.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpotdd01.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Fichiers communs\Microsoft Shared\Works Shared\wkcalrem.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpoevm08.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\Bin\hpoSTS08.exe
C:\WINDOWS\System32\wuauclt.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\WINDOWS\System32\rsvp.exe
C:\Documents and Settings\Nicolas\Mes documents\Mes fichiers reçus\pikachu.exe
C:\WINDOWS\system32\ntvdm.exe
C:\Documents and Settings\Nicolas\Local Settings\Temp\Répertoire temporaire 2 pour hijackthis.zip\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.jwogtjtwmkyrgnsnj.net/bl1...WVuZ3d0kr.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\DOCUME~1\Nicolas\LOCALS~1\Temp\sp.dll/sp.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Wanadoo
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {14784E33-318B-B83E-E6B1-49332F4C0242} - C:\DOCUME~1\Nicolas\APPLIC~1\MagsNew\builddelete.e xe
O2 - BHO: Web assistant - {9ECB9560-04F9-4bbc-943D-298DDF1699E1} - C:\Program Files\Fichiers communs\Symantec Shared\AdBlocking\NISShExt.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: (no name) - {B187A3A7-9F98-4F77-BB5B-F397A96C3AFB} - C:\WINDOWS\System32\minn.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: Web assistant - {0B53EAC3-8D69-4b9e-9B19-A37C9A5676A7} - C:\Program Files\Fichiers communs\Symantec Shared\AdBlocking\NISShExt.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [SSC_UserPrompt] C:\Program Files\Fichiers communs\Symantec Shared\Security Center\UsrPrmpt.exe
O4 - HKLM\..\Run: [WorksFUD] C:\Program Files\Microsoft Works\wkfud.exe
O4 - HKLM\..\Run: [WOOWATCH] C:\PROGRA~1\Wanadoo\Watch.exe
O4 - HKLM\..\Run: [WOOTASKBARICON] C:\PROGRA~1\Wanadoo\TaskbarIcon.exe
O4 - HKLM\..\Run: [WooCnxMon] C:\PROGRA~1\Wanadoo\CnxMon.exe
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe
O4 - HKLM\..\Run: [SpeedTouch USB Diagnostics] "C:\Program Files\Alcatel\SpeedTouch USB\Dragdiag.exe" /icon
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [Microsoft Works Update Detection] C:\Program Files\Fichiers communs\Microsoft Shared\Works Shared\WkUFind.exe
O4 - HKLM\..\Run: [Microsoft Works Portfolio] C:\Program Files\Microsoft Works\WksSb.exe /AllUsers
O4 - HKLM\..\Run: [MessagerStarter Wanadoo] C:\PROGRA~1\MESSAG~1\StartMessager.exe Messager Wanadoo
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [boob axis mpeg copy] C:\Documents and Settings\All Users\Application Data\nounrdrboobaxis\Mp3Support.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [RTEGPRS] "C:\Program Files\Fichiers communs\RTE\RTEGPRS.exe" tray
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [Great poke] C:\DOCUME~1\Nicolas\APPLIC~1\STYLES~1\Hole Remote Bat.exe
O4 - Global Startup: hp psc 1000 series.lnk = ?
O4 - Global Startup: hpoddt01.exe.lnk = ?
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: Rappels du Calendrier Microsoft Works.lnk = ?
O8 - Extra context menu item: &Google Search - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsearch.html
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MI1933~1\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: Pages liées - res://C:\Program Files\Google\GoogleToolbar1.dll/cmbacklinks.html
O8 - Extra context menu item: Pages similaires - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsimilar.html
O8 - Extra context menu item: Version de la page actuelle disponible dans le cache Google - res://C:\Program Files\Google\GoogleToolbar1.dll/cmcache.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2_03\bin\npjpi142_03.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2_03\bin\npjpi142_03.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra 'Tools' menuitem: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra button: Wanadoo - {1462651F-F4BA-4C76-A001-C4284D0FE16E} - http://www.wanadoo.fr (file missing) (HKCU)
O12 - Plugin for .mov: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin.dll
O16 - DPF: {10003000-1000-0000-1000-000000000000} - ms-its:mhtml:file://C:\foo.mht!http://bin.wordsx.cc/E5_90_Rnk0hZUYo...::/on-line.exe
O16 - DPF: {205FF73B-CA67-11D5-99DD-444553540006} (CInstall Class) - http://www.errorguard.com/installation/Install.cab
O16 - DPF: {7584C670-2274-4EFB-B00B-D6AABA6D3850} (Microsoft RDP Client Control (redist)) - http://univ-r.u-strasbg.fr/TSWeb/msrdp.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{150F69DE-CA6F-4F31-BC39-83D3778FEF09}: NameServer = 217.19.192.131 217.19.192.132
O17 - HKLM\System\CS1\Services\Tcpip\..\{150F69DE-CA6F-4F31-BC39-83D3778FEF09}: NameServer = 217.19.192.131 217.19.192.132
O17 - HKLM\System\CS2\Services\Tcpip\..\{150F69DE-CA6F-4F31-BC39-83D3778FEF09}: NameServer = 217.19.192.131 217.19.192.132
O18 - Filter: text/html - {5F648B03-0F72-435F-AB03-D457DA1C7432} - C:\WINDOWS\System32\minn.dll
O18 - Filter: text/plain - {5F648B03-0F72-435F-AB03-D457DA1C7432} - C:\WINDOWS\System32\minn.dll
O23 - Service: Symantec Event Manager - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Network Proxy - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccProxy.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 Internet Security\Norton AntiVirus\navapsvc.exe
O23 - Service: DDE réseau - Unknown - C:\WINDOWS\system32\netdde.exe
O23 - Service: DSDM DDE réseau - Unknown - C:\WINDOWS\system32\netdde.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: Pml Driver HPZ12 - HP - C:\WINDOWS\System32\HPZipm12.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 Internet Security\Norton AntiVirus\SAVScan.exe
O23 - Service: ScriptBlocking Service - Symantec Corporation - C:\PROGRA~1\FICHIE~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: Prise en charge des cartes à puces - Unknown - C:\WINDOWS\System32\SCardSvr.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: SymWMI Service - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\Security Center\SymWSC.exe
O23 - Service: Journaux et alertes de performance - Unknown - C:\WINDOWS\system32\smlogsvc.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

Hello,
Please download and install APM from here. Also download and install Ad-aware from here.

Once you have installed Ad-aware, run the program and in the bottom right hand corner click Check For Updates. Update Ad-aware following the prompts and then close the program, we will use it later.

Now disconnect from the internet, restart Hijack This and put a checkmark next to the following entries:

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.jwogtjtwmkyrgnsnj.net/bl...tWVuZ3d0kr.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\DOCUME~1\Nicolas\LOCALS~1\Temp\sp.dll/sp.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Wanadoo
O2 - BHO: (no name) - {14784E33-318B-B83E-E6B1-49332F4C0242} - C:\DOCUME~1\Nicolas\APPLIC~1\MagsNew\builddelete.e xe
O2 - BHO: (no name) - {B187A3A7-9F98-4F77-BB5B-F397A96C3AFB} - C:\WINDOWS\System32\minn.dll
O4 - HKLM\..\Run: [boob axis mpeg copy] C:\Documents and Settings\All Users\Application Data\nounrdrboobaxis\Mp3Support.exe
O4 - HKCU\..\Run: [Great poke] C:\DOCUME~1\Nicolas\APPLIC~1\STYLES~1\Hole Remote Bat.exe
O16 - DPF: {10003000-1000-0000-1000-000000000000} - ms-its:mhtml:file://C:\foo.mht!http://bin.wordsx.cc/E5_90_Rnk0hZUY...m::/on-line.exe
O16 - DPF: {205FF73B-CA67-11D5-99DD-444553540006} (CInstall Class) - http://www.errorguard.com/installation/Install.cab
O18 - Filter: text/html - {5F648B03-0F72-435F-AB03-D457DA1C7432} - C:\WINDOWS\System32\minn.dll
O18 - Filter: text/plain - {5F648B03-0F72-435F-AB03-D457DA1C7432} - C:\WINDOWS\System32\minn.dll

Now click Fix Checked

After you have done that, start APM.

In the top Window select explorer.exe
After this, in the bottom Windows find minn.dll
Right click minn.dll and choose Unload.
Click OK

Delete the following files and folders. If you can't delete them in Normal Mode, Boot into Safe Mode:
C:\WINDOWS\System32\minn.dll
C:\DOCUME~1\Nicolas\APPLIC~1\MagsNew
C:\Documents and Settings\All Users\Application Data\nounrdrboobaxis
C:\DOCUME~1\Nicolas\APPLIC~1\STYLES~1

Now Start Ad-aware

Click Start, select Perform Smart System Scan and then click Next.

When the scan has finished, put a checkmark next to all spyware found (or right click and click Select All) and then click Next to remove it. You will be asked to confirm the removal, confirm it. You will be returned to the start screen of Ad-aware. Close Ad-aware.

Reboot your PC.

Download Crap Cleaner from here. Install it and then run it to clean your temporary folders.

Post a fresh Hijack This log.

Ok thank you very much for your answer.
As the problem is on my brother's computer I will try this during this week and then I will post a new log (on tuesday or wednesday)
Once again thank you.

Can I just warn that this infection will morph.

The entries in the log which will morph are these:

O2 - BHO: (no name) - {B187A3A7-9F98-4F77-BB5B-F397A96C3AFB} - C:\WINDOWS\System32\minn.dll
O18 - Filter: text/html - {5F648B03-0F72-435F-AB03-D457DA1C7432} - C:\WINDOWS\System32\minn.dll
O18 - Filter: text/plain - {5F648B03-0F72-435F-AB03-D457DA1C7432} - C:\WINDOWS\System32\minn.dll

So fix these entries even with a different .dll file. And remember, you will of course have to unload the morphed file in APM if it has morphed.

OK, thanks for this precision. I will try all this this evening and then post a new log....

I've followed all your instructions carrefully. I now have access to my mailbox and I can change my startpage again BUT my log seems not to have changed... only the main startpage has changed into "http://www.google.fr" which is actually my startpage. The about:blank page remains everywhere else. I cannot understand why. Do I have to re-start the highjackthis log cleaning ?
Thanks for your help.

Logfile of HijackThis v1.99.0
Scan saved at 19:25:30, on 08/02/2005
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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\ccEvtMgr.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\PROGRA~1\Wanadoo\TaskbarIcon.exe
C:\PROGRA~1\Wanadoo\CnxMon.exe
C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccProxy.exe
C:\Program Files\Alcatel\SpeedTouch USB\Dragdiag.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\Fichiers communs\Microsoft Shared\Works Shared\WkUFind.exe
C:\Program Files\Norton Internet Security\Norton AntiVirus\navapsvc.exe
C:\PROGRA~1\MESSAG~1\StartMessager.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe
C:\Program Files\Norton Internet Security\Norton AntiVirus\SAVScan.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\Fichiers communs\RTE\RTEGPRS.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpohmr08.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpotdd01.exe
C:\Program Files\Fichiers communs\Microsoft Shared\Works Shared\wkcalrem.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpoevm08.exe
C:\WINDOWS\System32\HPZipm12.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\Bin\hpoSTS08.exe
C:\WINDOWS\System32\wuauclt.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Documents and Settings\Nicolas\Local Settings\Temp\Répertoire temporaire 1 pour hijackthis.zip\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://hpafcnmurelqcmnac.com/bl1fEWG...tWVuZ3d0kr.jsp
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.fr/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\DOCUME~1\Nicolas\LOCALS~1\Temp\sp.dll/sp.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {7D6FF6F2-8992-46BF-AB77-856FDB8AE5E2} - C:\WINDOWS\System32\minn.dll (file missing)
O2 - BHO: Web assistant - {9ECB9560-04F9-4bbc-943D-298DDF1699E1} - C:\Program Files\Fichiers communs\Symantec Shared\AdBlocking\NISShExt.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: Web assistant - {0B53EAC3-8D69-4b9e-9B19-A37C9A5676A7} - C:\Program Files\Fichiers communs\Symantec Shared\AdBlocking\NISShExt.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [SSC_UserPrompt] C:\Program Files\Fichiers communs\Symantec Shared\Security Center\UsrPrmpt.exe
O4 - HKLM\..\Run: [WorksFUD] C:\Program Files\Microsoft Works\wkfud.exe
O4 - HKLM\..\Run: [WOOWATCH] C:\PROGRA~1\Wanadoo\Watch.exe
O4 - HKLM\..\Run: [WOOTASKBARICON] C:\PROGRA~1\Wanadoo\TaskbarIcon.exe
O4 - HKLM\..\Run: [WooCnxMon] C:\PROGRA~1\Wanadoo\CnxMon.exe
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe
O4 - HKLM\..\Run: [SpeedTouch USB Diagnostics] "C:\Program Files\Alcatel\SpeedTouch USB\Dragdiag.exe" /icon
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [Microsoft Works Update Detection] C:\Program Files\Fichiers communs\Microsoft Shared\Works Shared\WkUFind.exe
O4 - HKLM\..\Run: [Microsoft Works Portfolio] C:\Program Files\Microsoft Works\WksSb.exe /AllUsers
O4 - HKLM\..\Run: [MessagerStarter Wanadoo] C:\PROGRA~1\MESSAG~1\StartMessager.exe Messager Wanadoo
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [MSConfig] C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe /auto
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [RTEGPRS] "C:\Program Files\Fichiers communs\RTE\RTEGPRS.exe" tray
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - Global Startup: hp psc 1000 series.lnk = ?
O4 - Global Startup: hpoddt01.exe.lnk = ?
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: Rappels du Calendrier Microsoft Works.lnk = ?
O8 - Extra context menu item: &Google Search - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsearch.html
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MI1933~1\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: Pages liées - res://C:\Program Files\Google\GoogleToolbar1.dll/cmbacklinks.html
O8 - Extra context menu item: Pages similaires - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsimilar.html
O8 - Extra context menu item: Version de la page actuelle disponible dans le cache Google - res://C:\Program Files\Google\GoogleToolbar1.dll/cmcache.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2_03\bin\npjpi142_03.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2_03\bin\npjpi142_03.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra 'Tools' menuitem: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra button: Wanadoo - {1462651F-F4BA-4C76-A001-C4284D0FE16E} - http://www.wanadoo.fr (file missing) (HKCU)
O12 - Plugin for .mov: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin.dll
O16 - DPF: {7584C670-2274-4EFB-B00B-D6AABA6D3850} (Microsoft RDP Client Control (redist)) - http://univ-r.u-strasbg.fr/TSWeb/msrdp.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{150F69DE-CA6F-4F31-BC39-83D3778FEF09}: NameServer = 217.19.192.132 217.19.192.131
O17 - HKLM\System\CS1\Services\Tcpip\..\{150F69DE-CA6F-4F31-BC39-83D3778FEF09}: NameServer = 217.19.192.132 217.19.192.131
O23 - Service: Symantec Event Manager - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Network Proxy - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccProxy.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 Internet Security\Norton AntiVirus\navapsvc.exe
O23 - Service: DDE réseau - Unknown - C:\WINDOWS\system32\netdde.exe
O23 - Service: DSDM DDE réseau - Unknown - C:\WINDOWS\system32\netdde.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: Pml Driver HPZ12 - HP - C:\WINDOWS\System32\HPZipm12.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 Internet Security\Norton AntiVirus\SAVScan.exe
O23 - Service: ScriptBlocking Service - Symantec Corporation - C:\PROGRA~1\FICHIE~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: Prise en charge des cartes à puces - Unknown - C:\WINDOWS\System32\SCardSvr.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: SymWMI Service - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\Security Center\SymWSC.exe
O23 - Service: Journaux et alertes de performance - Unknown - C:\WINDOWS\system32\smlogsvc.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

Close all browser windows, restart Hijack This and put a checkmark next to the following entries:

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://hpafcnmurelqcmnac.com/bl1fEW...htWVuZ3d0kr.jsp
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\DOCUME~1\Nicolas\LOCALS~1\Temp\sp.dll/sp.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
O2 - BHO: (no name) - {7D6FF6F2-8992-46BF-AB77-856FDB8AE5E2} - C:\WINDOWS\System32\minn.dll (file missing)

Click Fix Checked

Run CCleaner again.

Reboot and post a fresh log. If the entries still continue to reappear, I have a trick up my sleeve.

Hello,
Here is my new log :

Logfile of HijackThis v1.99.0
Scan saved at 18:31:39, on 10/02/2005
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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\ccEvtMgr.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Fichiers communs\Symantec Shared\Security Center\UsrPrmpt.exe
C:\WINDOWS\system32\spoolsv.exe
C:\PROGRA~1\Wanadoo\TaskbarIcon.exe
C:\PROGRA~1\Wanadoo\CnxMon.exe
C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe
C:\Program Files\Alcatel\SpeedTouch USB\Dragdiag.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\Fichiers communs\Microsoft Shared\Works Shared\WkUFind.exe
C:\PROGRA~1\MESSAG~1\StartMessager.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe
C:\Program Files\Fichiers communs\Symantec Shared\ccProxy.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\Norton Internet Security\Norton AntiVirus\navapsvc.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Fichiers communs\RTE\RTEGPRS.exe
C:\WINDOWS\System32\nvsvc32.exe
c:\progra~1\intern~1\iexplore.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\Norton Internet Security\Norton AntiVirus\SAVScan.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpohmr08.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpotdd01.exe
C:\Program Files\Fichiers communs\Microsoft Shared\Works Shared\wkcalrem.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpoevm08.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\Bin\hpoSTS08.exe
C:\WINDOWS\System32\wuauclt.exe
C:\Documents and Settings\Nicolas\Local Settings\Temp\Répertoire temporaire 1 pour hijackthis.zip\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.fstrumwzgezrwxgecqsogil.n...tWVuZ3d0kr.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.fr/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {14784E33-318B-B83E-E6B1-49332F4C0242} - C:\DOCUME~1\Nicolas\APPLIC~1\MagsNew\ballblue.exe
O2 - BHO: Web assistant - {9ECB9560-04F9-4bbc-943D-298DDF1699E1} - C:\Program Files\Fichiers communs\Symantec Shared\AdBlocking\NISShExt.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: Web assistant - {0B53EAC3-8D69-4b9e-9B19-A37C9A5676A7} - C:\Program Files\Fichiers communs\Symantec Shared\AdBlocking\NISShExt.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O4 - HKLM\..\Run: [SSC_UserPrompt] C:\Program Files\Fichiers communs\Symantec Shared\Security Center\UsrPrmpt.exe
O4 - HKLM\..\Run: [WorksFUD] C:\Program Files\Microsoft Works\wkfud.exe
O4 - HKLM\..\Run: [WOOWATCH] C:\PROGRA~1\Wanadoo\Watch.exe
O4 - HKLM\..\Run: [WOOTASKBARICON] C:\PROGRA~1\Wanadoo\TaskbarIcon.exe
O4 - HKLM\..\Run: [WooCnxMon] C:\PROGRA~1\Wanadoo\CnxMon.exe
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe
O4 - HKLM\..\Run: [SpeedTouch USB Diagnostics] "C:\Program Files\Alcatel\SpeedTouch USB\Dragdiag.exe" /icon
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [Microsoft Works Update Detection] C:\Program Files\Fichiers communs\Microsoft Shared\Works Shared\WkUFind.exe
O4 - HKLM\..\Run: [Microsoft Works Portfolio] C:\Program Files\Microsoft Works\WksSb.exe /AllUsers
O4 - HKLM\..\Run: [MessagerStarter Wanadoo] C:\PROGRA~1\MESSAG~1\StartMessager.exe Messager Wanadoo
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [boob axis mpeg copy] C:\Documents and Settings\All Users\Application Data\nounrdrboobaxis\Bore Error.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [RTEGPRS] "C:\Program Files\Fichiers communs\RTE\RTEGPRS.exe" tray
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [Great poke] C:\DOCUME~1\Nicolas\APPLIC~1\STYLES~1\Hole Remote Bat.exe
O4 - Global Startup: hp psc 1000 series.lnk = ?
O4 - Global Startup: hpoddt01.exe.lnk = ?
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: Rappels du Calendrier Microsoft Works.lnk = ?
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MI1933~1\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2_03\bin\npjpi142_03.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2_03\bin\npjpi142_03.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra 'Tools' menuitem: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra button: Wanadoo - {1462651F-F4BA-4C76-A001-C4284D0FE16E} - http://www.wanadoo.fr (file missing) (HKCU)
O12 - Plugin for .mov: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin.dll
O16 - DPF: {7584C670-2274-4EFB-B00B-D6AABA6D3850} (Microsoft RDP Client Control (redist)) - http://univ-r.u-strasbg.fr/TSWeb/msrdp.cab
O23 - Service: Symantec Event Manager - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Network Proxy - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\ccProxy.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 Internet Security\Norton AntiVirus\navapsvc.exe
O23 - Service: DDE réseau - Unknown - C:\WINDOWS\system32\netdde.exe
O23 - Service: DSDM DDE réseau - Unknown - C:\WINDOWS\system32\netdde.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: Pml Driver HPZ12 - HP - C:\WINDOWS\System32\HPZipm12.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 Internet Security\Norton AntiVirus\SAVScan.exe
O23 - Service: ScriptBlocking Service - Symantec Corporation - C:\PROGRA~1\FICHIE~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: Prise en charge des cartes à puces - Unknown - C:\WINDOWS\System32\SCardSvr.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: SymWMI Service - Symantec Corporation - C:\Program Files\Fichiers communs\Symantec Shared\Security Center\SymWSC.exe
O23 - Service: Journaux et alertes de performance - Unknown - C:\WINDOWS\system32\smlogsvc.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

The first line keeps on reappearing each time with another address :
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.fstrumwzgezrwxgecqsogil.n...tWVuZ3d0kr.htm

Concerning the other lines, no idea if the log is approximately clean nor, or not.
Thank you for all your help...