Log hijackthis!

Bonjour,

mon pc redémarre brutalement plusieurs fois par jour, le menu options dossiers est disparu et les disques dur ne s'ouvrent pas.

j'ai fait une analyse antivirus et un scan hijackthis dont le rapport est:

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Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 07:43:08, on 02/01/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16705)
Boot mode: Normal

Running processes:
D:\WINDOWS\System32\smss.exe
D:\WINDOWS\system32\winlogon.exe
D:\WINDOWS\system32\services.exe
D:\WINDOWS\system32\lsass.exe
D:\WINDOWS\system32\svchost.exe
D:\WINDOWS\System32\svchost.exe
D:\Program Files\Avast4\aswUpdSv.exe
D:\Program Files\Avast4\ashServ.exe
D:\WINDOWS\Explorer.EXE
D:\PROGRA~1\Avast4\ashDisp.exe
D:\WINDOWS\system32\ctfmon.exe
D:\Program Files\Menara\dslmon.exe
D:\Program Files\Avast4\ashWebSv.exe
D:\Program Files\DAP\DAP.EXE
D:\Documents and Settings\Benjabbour.UNICORNI-E9D39E\Mes documents\My Completed Downloads\HiJackThis.exe
D:\Program Files\Mozilla Firefox\firefox.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = https://www.google.fr/?gws_rd=ssl
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr/?ocid=iehp
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
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
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Menara
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: (no name) - {E312764E-7706-43F1-8DAB-FCDD2B1E416D} - (no file)
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Program Files\Real\RealPlayer\rpbrowserrecordplugin.dll
O2 - BHO: RoboForm - {724d43a9-0d85-11d4-9908-00400523e39a} - D:\Program Files\Siber Systems\AI RoboForm\roboform.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - D:\Program Files\Java\jre6\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - D:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: MegaIEMn - {bf00e119-21a3-4fd1-b178-3b8537e75c92} - D:\Program Files\Megaupload\Mega Manager\MegaIEMn.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - D:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: (no name) - {E312764E-7706-43F1-8DAB-FCDD2B1E416D} - (no file)
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - D:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O3 - Toolbar: &RoboForm - {724d43a0-0d85-11d4-9908-00400523e39a} - D:\Program Files\Siber Systems\AI RoboForm\roboform.dll
O4 - HKLM\..\Run: [avast!] D:\PROGRA~1\Avast4\ashDisp.exe
O4 - HKCU\..\Run: [ctfmon.exe] D:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [ccleaner] "D:\Program Files\CCleaner\CCleaner.exe" /AUTO
O4 - Global Startup: DSLMON.lnk = D:\Program Files\Menara\dslmon.exe
O7 - HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System, DisableRegedit=1
O8 - Extra context menu item: &Clean Traces - D:\Program Files\DAP\Privacy Package\dapcleanerie.htm
O8 - Extra context menu item: &Download with &DAP - D:\Program Files\DAP\dapextie.htm
O8 - Extra context menu item: Barre RoboForm - file://D:\Program Files\Siber Systems\AI RoboForm\RoboFormComShowToolbar.html
O8 - Extra context menu item: Download &all with DAP - D:\Program Files\DAP\dapextie2.htm
O8 - Extra context menu item: Enregistrer le formulaire - file://D:\Program Files\Siber Systems\AI RoboForm\RoboFormComSavePass.html
O8 - Extra context menu item: Personnaliser le menu - file://D:\Program Files\Siber Systems\AI RoboForm\RoboFormComCustomizeIEMenu.html
O8 - Extra context menu item: Remplir le formulaire - file://D:\Program Files\Siber Systems\AI RoboForm\RoboFormComFillForms.html
O9 - Extra button: Remplir - {320AF880-6646-11D3-ABEE-C5DBF3571F46} - file://D:\Program Files\Siber Systems\AI RoboForm\RoboFormComFillForms.html
O9 - Extra 'Tools' menuitem: Remplir le formulaire - {320AF880-6646-11D3-ABEE-C5DBF3571F46} - file://D:\Program Files\Siber Systems\AI RoboForm\RoboFormComFillForms.html
O9 - Extra button: Enregistrer - {320AF880-6646-11D3-ABEE-C5DBF3571F49} - file://D:\Program Files\Siber Systems\AI RoboForm\RoboFormComSavePass.html
O9 - Extra 'Tools' menuitem: Enregistrer le formulaire - {320AF880-6646-11D3-ABEE-C5DBF3571F49} - file://D:\Program Files\Siber Systems\AI RoboForm\RoboFormComSavePass.html
O9 - Extra button: Barre RoboForm - {724d43aa-0d85-11d4-9908-00400523e39a} - file://D:\Program Files\Siber Systems\AI RoboForm\RoboFormComShowToolbar.html
O9 - Extra 'Tools' menuitem: Barre RoboForm - {724d43aa-0d85-11d4-9908-00400523e39a} - file://D:\Program Files\Siber Systems\AI RoboForm\RoboFormComShowToolbar.html
O9 - Extra button: Traduction - {7A2EFD41-E6B3-11D2-89E3-00E0292EE574} - D:\Program Files\PROMT5\PROMTIE4\promtie5.htm
O9 - Extra 'Tools' menuitem: Traduire - {7A2EFD41-E6B3-11D2-89E3-00E0292EE574} - D:\Program Files\PROMT5\PROMTIE4\promtie5.htm
O9 - Extra button: (no name) - {7A2EFD41-E6B3-11D2-89E3-00E0292EE575} - D:\Program Files\PROMT5\PROMTIE4\options.htm
O9 - Extra 'Tools' menuitem: Personnaliser les options de traduction - {7A2EFD41-E6B3-11D2-89E3-00E0292EE575} - D:\Program Files\PROMT5\PROMTIE4\options.htm
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - D:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - D:\Program Files\Messenger\msmsgs.exe
O9 - Extra button: Traduction - {7A2EFD41-E6B3-11D2-89E3-00E0292EE574} - D:\Program Files\PROMT5\PROMTIE4\promtie5.htm (HKCU)
O9 - Extra 'Tools' menuitem: Traduire - {7A2EFD41-E6B3-11D2-89E3-00E0292EE574} - D:\Program Files\PROMT5\PROMTIE4\promtie5.htm (HKCU)
O9 - Extra button: (no name) - {7A2EFD41-E6B3-11D2-89E3-00E0292EE575} - D:\Program Files\PROMT5\PROMTIE4\options.htm (HKCU)
O9 - Extra 'Tools' menuitem: Personnaliser les options de traduction - {7A2EFD41-E6B3-11D2-89E3-00E0292EE575} - D:\Program Files\PROMT5\PROMTIE4\options.htm (HKCU)
O14 - IERESET.INF: START_PAGE_URL=http://www.files-ftp.com/~unicorni/phpBB2/index.php
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://www.update.microsoft.com/...
O17 - HKLM\System\CCS\Services\Tcpip\..\{C7754802-6CC4-4C0B-96C0-14E7B4E3AB76}: NameServer = 212.217.0.14 196.217.246.210
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - D:\Program Files\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - D:\Program Files\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - D:\Program Files\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - D:\Program Files\Avast4\ashWebSv.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - D:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: Ma-Config Service (maconfservice) - CybelSoft - D:\Program Files\ma-config.com\maconfservice.exe
O23 - Service: ServiceLayer - Nokia. - D:\Program Files\PC Connectivity Solution\ServiceLayer.exe
O23 - Service: StarWind AE Service (StarWindServiceAE) - Rocket Division Software - D:\Program Files\Alcohol 120\StarWind\StarWindServiceAE.exe
O23 - Service: VideoAcceleratorService - Speedbit Ltd. - D:\PROGRA~1\SPEEDB~1\VideoAcceleratorService.exe