Attaque virale : analyse de log hijackthis

Bonjour,
Je n'ai plus de connexion internet. Mon modem fonctionne mais lorsque je lance une connexion j'ai le message d'erreur suivant : "impossible de connecter l'entrée de l'annuaire téléphonique. Erreur 756 : cette connexion est déjà en cours de numérotation."
Puis,
"Erreur lors de la connexion à Free ADSL. Déconnecté. Erreur 721 : l'ordinateur distant n'a pas répondu."
Je vous communique le log hijackthis afin que vous puissiez m'aider. J'ai fait un scan avec tous les antivirus disponibles sur mon ordinateur et mis en quarantaine tous les virus détectés, mais je ne peux pas faire de mise à jour et ils datent un peu.

Logfile of HijackThis v1.99.1
Scan saved at 22:06:19, on 2007-08-12
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16473)

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\svchost.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
C:\WINDOWS\system32\CTsvcCDA.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\slserv.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\MsPMSPSv.exe
C:\Program Files\ADSL Autoconnect\ADSL Autoconnect.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\PROGRA~1\MUSICM~1\MUSICM~1\mm_tray.exe
C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mmtask.exe
C:\Program Files\Java\jre1.6.0_01\bin\jusched.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\Program Files\Creative\Sync Manager Unicode\CTSyncU.exe
C:\Program Files\SAGEM\SAGEM F@st800\DSLMON.exe
C:\Program Files\Logitech\SetPoint\SetPoint.exe
C:\Program Files\Fichiers communs\Logitech\KHAL\KHALMNPR.EXE
C:\Program Files\Windows Media Player\WMPNSCFG.exe
C:\Program Files\Creative\MediaSource5\MtdAcqu.exe
C:\Program Files\Fichiers communs\Real\Update_OB\evntsvc.exe
C:\Program Files\Lavasoft\Ad-Aware SE Personal\Ad-Aware.exe
C:\Hijackthis Version Française\VERSION TRADUITE ORIGINALE.EXE

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,SearchAssistant = http://search.bearshare.com/sidebar.html?src=ssb
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://search.bearshare.com/sidebar.html?src=ssb
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://search.bearshare.com/sidebar.html?src=ssb
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.free.fr/freebox/index.html
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 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://search.bearshare.com/sidebar.html?src=ssb
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: (no name) - {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_01\bin\ssv.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\2.0.301.7164\swg.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [REGSHAVE] C:\Program Files\REGSHAVE\REGSHAVE.EXE /AUTORUN
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [DLCCCATS] rundll32 C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\DLCCtime.dll,_RunDLLEntry@16
O4 - HKLM\..\Run: [TkBellExe] C:\Program Files\Fichiers communs\Real\Update_OB\evntsvc.exe -osboot
O4 - HKLM\..\Run: [MMTray] C:\PROGRA~1\MUSICM~1\MUSICM~1\mm_tray.exe
O4 - HKLM\..\Run: [mmtask] "C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mmtask.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_01\bin\jusched.exe"
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [CTSyncU.exe] "C:\Program Files\Creative\Sync Manager Unicode\CTSyncU.exe"
O4 - HKCU\..\Run: [MtdAcqu] "C:\Program Files\Creative\MediaSource5\MtdAcqu.exe" /s
O4 - Global Startup: DSLMON.lnk = C:\Program Files\SAGEM\SAGEM F@st800\DSLMON.exe
O4 - Global Startup: Logitech SetPoint.lnk = C:\Program Files\Logitech\SetPoint\SetPoint.exe
O8 - Extra context menu item: Easy-WebPrint Ajouter à la liste d'impressions - res://C:\Program Files\Canon\Easy-WebPrint\Resource.dll/RC_AddToList.html
O8 - Extra context menu item: Easy-WebPrint Impression rapide - res://C:\Program Files\Canon\Easy-WebPrint\Resource.dll/RC_HSPrint.html
O8 - Extra context menu item: Easy-WebPrint Imprimer - res://C:\Program Files\Canon\Easy-WebPrint\Resource.dll/RC_Print.html
O8 - Extra context menu item: Easy-WebPrint Prévisualiser - res://C:\Program Files\Canon\Easy-WebPrint\Resource.dll/RC_Preview.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
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
O11 - Options group: [INTERNATIONAL] International*
O14 - IERESET.INF: START_PAGE_URL=https://www.free.fr/freebox/index.html
O16 - DPF: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - http://www.kaspersky.com/kos/eng/partner/default/kavwebscan_unicode.cab
O16 - DPF: {193C772A-87BE-4B19-A7BB-445B226FE9A1} (ewidoOnlineScan Control) - http://download.ewido.net/ewidoOnlineScan.cab
O16 - DPF: {B9A296D4-38AC-4566-8168-F7ACAF7D35E6} (Eyeball Video Session Control) - https://validate.perfdrive.com/captcha?ssa=ed90355c-3df0-4901-92c7-eafb196e9669&ssb=1geembf4k14e2ahe4f3e10ffl&ssc=http%3A%2F%2Fimlive.com%2F%2FChatSource%2FgVideoContol.cab&ssd=077882054534644&sse=ok@p@p@ldlcfbic&ssf=82b22d70d5d026f8c801936ad32dfec711ba4ea2&ssg=8708fca6-ad18-4b54-a7ab-1e39c7069431&ssh=f0d38db8-7194-4568-9a36-7c2dc6309e64&ssi=fbf56cec-ba0f-42da-80c2-0435ea8a0945&ssj=3de4bef7-1f21-46b9-a688-1fcb5c0107a5&ssk=support@shieldsquare.com&ssl=577920921770&ssm=15639081243192451102106187843328&ssn=1f4bda54a2560999d4eb5ccd70e034ff0bfcc36ba1dc-8044-48e1-a6ccaf&sso=69123e03-788a92c6aff053a28a73fa3b57ff53959ee147963c008d95&ssp=38191491051580944058158095633977316&ssq=41120751699472449149516994397786202646352&ssr=OTEuMjA5LjM1LjIxOA==&sss=Mozilla/5.0%20(compatible;%20Yahoo!%20Slurp;%20http://help.yahoo.com/help/us/ysearch/slurp)&sst=Mozilla/5.0%20(X11;%20Linux%20x86_64)%20AppleWebKit/537.36%20(KHTML,%20like%20Gecko)%20Chrome/74.0.3729.131%20Safari/537.36&ssu=Mozilla/4.0%20(compatible;%20MSIE%208.0;%20Windows%2
O16 - DPF: {BB87C3EA-AFC2-401F-84E8-0C166F2B0DA3} (OggPlayer Class) - http://static.one2one.com/class/WMOggPlayer.cab
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O18 - Filter: text/html - {2AB289AE-4B90-4281-B2AE-1F4BB034B647} - (no file)
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: ADSLAutoconnect - Unknown owner - C:\Program Files\ADSL Autoconnect\ADSL Autoconnect.exe" -z (file missing)
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - 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: AVG Anti-Spyware Guard - Anti-Malware Development a.s. - C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\system32\CTsvcCDA.exe
O23 - Service: dlcc_device - Unknown owner - C:\WINDOWS\system32\dlcccoms.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Sunbelt Kerio Personal Firewall 4 (KPF4) - Sunbelt Software - C:\Program Files\Sunbelt Software\Personal Firewall\kpf4ss.exe
O23 - Service: SC Test Branding Service 1 - SC Test Branding 1 - C:\Program Files\Fichiers communs\SC Test Branding 1 Shared\Service\SCTestService1.exe
O23 - Service: SmartLinkService (SLService) - - C:\WINDOWS\SYSTEM32\slserv.exe

Avez-vous une idée sur l'origine de mon problème ? et une idée pour m'aider à m'en sortir ?
Avec mes remerciements