Virus : PC ralenti et log Hijackthis fournie

Bonsoir
Mon PC semble infecté, des grosses lenteurs et surtout un débit vers l'extérieur qui monopolise la bande passante.
J'ai realisé un log de Hijackthis. Merci de votre aide.

Logfile of HijackThis v1.99.1
Scan saved at 22:33:30, on 31/10/2006
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINNT\system32\cisvc.exe
C:\WINNT\system32\drivers\dcfssvc.exe
C:\WINNT\System32\svchost.exe
C:\WINNT\system32\nvsvc32.exe
F:\Program Files\kodak\KODAK EASYSHARE Software\bin\ptssvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\System32\tcpsvcs.exe
C:\WINNT\System32\snmp.exe
C:\Program Files\Alwil Software\Avast4\setup\avast.setup
C:\WINNT\system32\stisvc.exe
C:\WINNT\system32\ZoneLabs\vsmon.exe
C:\WINNT\Explorer.EXE
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\WF2K.EXE
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\WINNT\system32\RUNDLL32.EXE
C:\WINNT\system32\Isass.exe
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Zone Labs\ZoneAlarm\zapro.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\Administrateur\Bureau\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer,SearchURL = http://www.google.fr/keyword/%s
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.google.fr/toolbar/ie8/sidebar.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.google.fr/?gws_rd=ssl
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = localhost
O2 - BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - (no file)
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} - (no file)
O3 - Toolbar: Barre d'outils MSN - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\MSN Toolbar\01.01.2607.0\fr\msntb.dll
O4 - HKLM\..\Run: [WinFoxV2] C:\WINNT\system32\WF2K.EXE
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [LogitechVideoRepair] C:\Program Files\Logitech\Video\ISStart.exe
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINNT\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [Local Security Authority Service] C:\WINNT\system32\Isass.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINNT\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.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: Ouvrir le cadre dans une nouvelle fenêtre - C:\WINNT\web\OpenFrame.htm
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINNT\system32\shdocvw.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINNT\system32\shdocvw.dll
O9 - Extra button: ICQ 4.1 - {B863453A-26C3-4e1f-A54D-A2CD196348E9} - F:\Program Files\ICQLite\ICQLite.exe
O9 - Extra 'Tools' menuitem: ICQ Lite - {B863453A-26C3-4e1f-A54D-A2CD196348E9} - F:\Program Files\ICQLite\ICQLite.exe
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINNT\System32\Shdocvw.dll
O12 - Plugin for .pdf: C:\Program Files\Internet Explorer\PLUGINS\nppdf32.dll
O14 - IERESET.INF: START_PAGE_URL=https://www.free.fr/freebox/index.html
O16 - DPF: ppctlcab -
O16 - DPF: teleir_cert -
O16 - DPF: {0E5F0222-96B9-11D3-8997-00104BD12D94} -
O16 - DPF: {15B782AF-55D8-11D1-B477-006097098764} -
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} -
O16 - DPF: {2FC9A21E-2069-4E47-8235-36318989DB13} -
O16 - DPF: {30528230-99F7-4BB4-88D8-FA1D4F56A2AB} -
O16 - DPF: {3BFFE033-BF43-11D5-A271-00A024A51325} (iNotes6 Class) - https://fedhub.airfrance.fr/idp/eyJ2c2lkIjoidXJuOmlkcDpwcmQ6YWZyOnBmOmRtemk6c3Ryb25nIn0/SSO.saml2?SAMLRequest=lZJfT8IwFMXf%2BRRL39m6miE0QILwMqIhbsY%2FvJiu7UJl7WZvF8VPb4eL8oAm9qEP956e87s3nS5atzOZfG0luGDlL2WYU7WZoZ1zDdAoKqXYtUXIlC0tM1yGpY2UaCJ5WBNOqn36UivxuG43utrzVfPG9e3o6WF72JgrvdGZk3o%2F4hfZoSCJSQ2O8nwTAtMVQUG6mqFnghMei6IoJ5NEkFJyLkWCxSUbE9%2FASTxmwksBWpkacMy4GSKY4CEmQ5zcxQnFExqPtyi4lxaO6CTEKHjXlYEZaq2hNQMF1DAtgTpO88XNNfUa2tja1byu0HwQ%2BDM1ENNjkP16TX3hbwcGIG23LzTvZNB4T0FZaSloKvSHmkY%2Fpn1Kv20pjrtf1sbJdxcsa90wq6Dj18oo3eoeq0cj9FS%2FrHx0JstvUPIv0F9lnPLO2ZezfNHBn4%2FtR4nOzjIfTKPTfzX%2FBA%3D%3D&RelayState=9f1e961a74788f8724702c25888484a5aaa08d23&SigAlg=http%3A%2F%2Fwww.w3.org%2F2001%2F04%2Fxmldsig-more%23rsa-sha256&Signature=UmUIBDdfgGMmYk5vOcvDMzYXNbUmI4iQC9VVrxXqIn8NfMXxIWiZjYxNvbS5jCooE6N2xerYJ0iucHrFbCgeTfsJ19%2FnYwfl65lpvlU%2FfLyKhUnsDgMpxGeJ7%2BbdMmQ0Du7hpS4m0b4PyW3AY6%2FYtj%2FF4bVWYHS0EHz4bKspk1fF7MU7cdzUjkA2Wdgcx6SMtHG0nlf6O6ql69lkG88CNVqmjCtAhq56ZZPDTOqIv0%2B9oMvUvHVgkUEIU8MKTAfzrgntZFBgdSh2fPpTRrWjJWWudj
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} -
O16 - DPF: {8FFBE65D-2C9C-4669-84BD-5829DC0B603C} -
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://acs.pandasoftware.com/activescan/as5free/asinst.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} -
O16 - DPF: {CAFEEFAC-0014-0001-0001-ABCDEFFEDCBA} -
O16 - DPF: {CAFEEFAC-0014-0002-0005-ABCDEFFEDCBA} -
O16 - DPF: {CAFEEFAC-0014-0002-0006-ABCDEFFEDCBA} -
O16 - DPF: {CAFEEFAC-0015-0000-0004-ABCDEFFEDCBA} -
O16 - DPF: {EF99BD32-C1FB-11D2-892F-0090271D4F88} -
O20 - Winlogon Notify: WRNotifier - WRLogonNTF.dll (file missing)
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: Dcfssvc - Eastman Kodak Company - C:\WINNT\system32\drivers\dcfssvc.exe
O23 - Service: Service d'administration du Gestionnaire de disque logique (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINNT\system32\nvsvc32.exe
O23 - Service: Pml Driver HPH11 - HP - C:\WINNT\system32\HPHipm11.exe
O23 - Service: ptssvc - KODAK - F:\Program Files\kodak\KODAK EASYSHARE Software\bin\ptssvc.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs Inc. - C:\WINNT\system32\ZoneLabs\vsmon.exe