Agent-iu, adan-094, adan078. Need help

<gras>Bonjour à tous,

Depuis quelques temps, je suis la cible de :
- agent-iu
- adan-094
- adan-078

Je suis sous Windows XP pro protégé par avast. J'ai Ad-Adware SE Personal, CCleaner, a-squared SartCenter et Spybot 
J'ai essayé de me desinfecter avec divers antivirus et antispyware, mais sans succés... 
Ce matin, j'ais fait un log avec hijackthis que je joints 

Logfile of HijackThis v1.99.1
Scan saved at 09:29:01, on 21/05/2006
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\csrss.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\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\Program Files\Gazel-NT\vstartx.exe
C:\Program Files\Gazel-NT\gisdnlog.exe
C:\Program Files\Java\j2re1.4.2_05\bin\jusched.exe
C:\Program Files\Gazel-NT\gsyno.exe
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\WINDOWS\system32\spool\drivers\w32x86\3\hpztsb07.exe
C:\Program Files\Alwil Software\Avast4\ashDisp.exe
C:\Program Files\QuickTime\qttask.exe
C:\PROGRA~1\PestPatrol\PPControl.exe
C:\PROGRA~1\PestPatrol\PPMemCheck.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\PROGRA~1\PestPatrol\CookiePatrol.exe
C:\Program Files\Netscape\Netscape\Netscp.exe
C:\WINDOWS\Explorer.exe
C:\Program Files\SpywareGuard\sgmain.exe
C:\Program Files\SpywareGuard\sgbhp.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Documents and Settings\Administrateur\Mes documents\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.orange.fr/portail
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
N3 - Netscape 7: # Mozilla User Preferences
// This is a generated file!

user_pref("aim.session.firsttime", false);
user_pref("browser.activation.checkedNNFlag", true);
user_pref("browser.bookmarks.added_static_root", true);
user_pref("browser.history.last_page_visited", "https://siam.ac-limoges.fr/siam/");
user_pref("browser.search.defaultengine", "engine://C%3A%5CPROGRA%7E1%5CNetscape%5CNetscape%5Csearchplugins%5CNetscape_France.src");
user_pref("browser.startup.homepage_override.mstone", "rv:1.0.2");
user_pref("browser.tabs.forceHide", true);
user_pref("browser.turbo.showDialog", true);
user_pref("intl.charsetmenu.browser.cache", "windows-1252, UTF-8, ISO-8859-1");
user_pref("ldap_2.prefs_migrated", true);
user_pref("mail.smtpservers", "");
user_pref("mail.ui.folderpane.version", 2);
user_pref("mailnews.global_html_domains.version", 2);
user_pref("mailnews.html_domains", "netscape.net,netscape.com,aol.com,cs.com,yahoo.com,hotmail.com,msn.com");
user_pref("mailnews.ui.threadpane.version", 2);
user_pref("pr
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: SpywareGuard Download Protection - {4A368E80-174F-4872-96B5-0B27DDD11DB2} - C:\Program Files\SpywareGuard\dlprotect.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\system32\msdxm.ocx
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_05\bin\jusched.exe
O4 - HKLM\..\Run: [GazelDisplay] "C:\Program Files\Gazel-NT\gsyno.exe" -h
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe"  -osboot
O4 - HKLM\..\Run: [HPDJ Taskbar Utility] C:\WINDOWS\system32\spool\drivers\w32x86\3\hpztsb07.exe
O4 - HKLM\..\Run: [driver64] backd.exe
O4 - HKLM\..\Run: [avast!] "C:\Program Files\Alwil Software\Avast4\ashDisp.exe"
O4 - HKLM\..\Run: [Watch] C:\PROGRA~1\AvA\Watch.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [PestPatrol Control Center] C:\PROGRA~1\PestPatrol\PPControl.exe
O4 - HKLM\..\Run: [PPMemCheck] C:\PROGRA~1\PestPatrol\PPMemCheck.exe
O4 - HKLM\..\Run: [CookiePatrol] C:\PROGRA~1\PestPatrol\CookiePatrol.exe
O4 - HKLM\..\Run: [WTFCTF1] install2.exe
O4 - HKLM\..\Run: [ClamWin] "C:\Program Files\ClamWin\bin\ClamTray.exe" --logon
O4 - HKLM\..\Run: [dmkry.exe] C:\WINDOWS\system32\dmkry.exe
O4 - HKLM\..\Run: [hgqhp.exe] C:\WINDOWS\system32\hgqhp.exe
O4 - HKCU\..\Run: [Mozilla Quick Launch] "C:\Program Files\Netscape\Netscape\Netscp.exe" -turbo
O4 - HKCU\..\Run: [NBJ] "C:\Program Files\Ahead\Nero BackItUp\NBJ.exe"
O4 - HKCU\..\Run: [MsNetHelper] zxc.exe
O4 - HKCU\..\Run: [media64] SetupExeDll.exe
O4 - Startup: SpywareGuard.lnk = C:\Program Files\SpywareGuard\sgmain.exe
O4 - Global Startup: Lancement rapide d'Adobe Reader.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions present
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
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\Microsoft Office\Office10\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: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\system32\msjava.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\system32\msjava.dll
O16 - DPF: {56336BCB-3D8A-11D6-A00B-0050DA18DE71} (RdxIE Class) - http://software-dl.real.com/15555c5e2c3f083ab605/netzip/RdxIE601_fr.cab
O16 - DPF: {5CA8D349-C6E7-11D4-8166-009027DF3BB2} (France Telecom MDDK ActiveX Control) - http://accueil.ava.serveur-ava.com/stkid_data/ocx/mDKid.cab
O16 - DPF: {85D1F3B2-2A21-11D7-97B9-0010DC2A6243} (SecureLogin class) - http://secure2.comned.com/signuptemplates/securelogin-devel.cab
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://acs.pandasoftware.com/activescan/as5free/asinst.cab
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: Démarrage Gazel (Gazel Startup) - Unknown owner - C:\Program Files\Gazel-NT\vstartx.exe" /s (file missing)
O23 - Service: Journal des connexions RNIS (GisdnLog) - Unknown owner - C:\Program Files\Gazel-NT\gisdnlog.exe" -s (file missing)

En vous remerciant de bien voiloir me répondre.</gras