Virus ou pas virus? complément

Bonjour,
j'ai un petit soucis.Sur MA clé USB et sur mon DD externe,il y a des dossiers de raccourcis (video,musique,picture,password,image et new folder) difficile a supprimer.et quand j'y arrive,ça revient a chaque fois lorsque je rebranche la clé ou le DD. Aussi, si mes clé ou dd externe contiennent des dossiers audio, vidéo, images, photos, ces derniers sont transformés en raccourcis et donc du coup je ne peux plus avoir accès à ces fichiers.

là,j'ai besoin d'un coup de pouce.
merci d'avance.

ps: J'ai fait un test avec hijackthis voilà le rapport


Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 12:54:32, on 27/07/2010
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Safe mode

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\Explorer.EXE
C:\Program Files\Auslogics\Auslogics Disk Defrag\DiskDefrag.exe
C:\Documents and Settings\Jean Hugues ZETTOR\Bureau\HiJackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://y.lo.st/
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = http=127.0.0.1:7180
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = 127.0.0.1:7180;maj.wanadoo.fr
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Search USA Toolbar - {48405d3d-2674-4cd8-b1ef-9a719443bd3f} - C:\Program Files\Search_USA\tbSea0.dll (file missing)
O3 - Toolbar: Search USA Toolbar - {48405d3d-2674-4cd8-b1ef-9a719443bd3f} - C:\Program Files\Search_USA\tbSea0.dll (file missing)
O4 - HKLM\..\Run: [HP Software Update] C:\Program Files\HP\HP Software Update\HPWuSchd2.exe
O4 - HKLM\..\RunServices: [RegisterDropHandler] C:\PROGRA~1\TEXTBR~1.0\Bin\REGIST~1.EXE
O4 - HKCU\..\Run: [DAEMON Tools] "C:\Program Files\DAEMON Tools\daemon.exe" -lang 1033
O4 - HKCU\..\Run: [swg] "C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe"
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [Hsekihumevixi] rundll32.exe "C:\WINDOWS\msipsc.dll",Startup
O4 - HKCU\..\Run: [youfot] C:\Documents and Settings\Jean Hugues ZETTOR\youfot.exe
O4 - HKCU\..\Run: [foudu] C:\Documents and Settings\Jean Hugues ZETTOR\foudu.exe
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - S-1-5-18 Startup: OpenOffice.org 2.0.lnk = P:\OpenOffice.org 2.0\program\quickstart.exe (User 'SYSTEM')
O4 - .DEFAULT Startup: OpenOffice.org 2.0.lnk = P:\OpenOffice.org 2.0\program\quickstart.exe (User 'Default user')
O4 - Startup: OpenOffice.org 2.0.lnk = P:\OpenOffice.org 2.0\program\quickstart.exe
O4 - Global Startup: Contrôleur de calendrier Ulead.lnk = C:\Program Files\Ulead Systems\Ulead Photo Express 4.0 SE\CalCheck.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: Photo Express Calendar Checker SE.lnk = C:\Program Files\Ulead Systems\Ulead Photo Express 2 SE\CalCheck.exe
O4 - Global Startup: Adobe Gamma Loader.exe.lnk = C:\Program Files\Fichiers communs\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: WinZip Quick Pick.lnk = C:\Program Files\WinZip\WZQKPICK.EXE
O4 - Global Startup: HP Digital Imaging Monitor.lnk = C:\Program Files\HP\Digital Imaging\bin\hpqtra08.exe
O4 - Global Startup: Démarrage rapide du logiciel HP Image Zone.lnk = C:\Program Files\HP\Digital Imaging\bin\hpqthb08.exe
O8 - Extra context menu item: &Search - http://edits.mywebsearch.com/toolbaredits/menusearch.jhtml?p=ZRman000
O8 - Extra context menu item: Add to Google Photos Screensa&ver - res://C:\WINDOWS\system32\GPhotos.scr/200
O8 - Extra context menu item: Afficher l'image non compressée - res://C:\PROGRA~1\Booster Wanadoo\wanadoo_booster.exe/227
O8 - Extra context menu item: Afficher toutes les images non compressées - res://C:\PROGRA~1\Booster Wanadoo\wanadoo_booster.exe/250
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: Google Sidewiki... - res://C:\Program Files\Google\Google Toolbar\Component\GoogleToolbarDynamic_mui_en_89D8574934B26AC4.dll/cmsidewiki.html
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
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://download.microsoft.com/download/E/5/6/E5611B10-0D6D-4117-8430-A67417AA88CD/LegitCheckControl.cab
O20 - Winlogon Notify: !SASWinLogon - C:\Program Files\SUPERAntiSpyware\SASWINLO.DLL
O23 - Service: a-squared Free Service (a2free) - Emsi Software GmbH - C:\Program Files\a-squared Free\a2service.exe
O23 - Service: ArcSoft Connect Daemon (ACDaemon) - ArcSoft Inc. - C:\Program Files\Fichiers communs\ArcSoft\Connection Service\Bin\ACService.exe
O23 - Service: Acer Media Server - Acer Inc. - C:\Program Files\acer\Acer eConsole\MediaServerService.exe
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 - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: EpsonBidirectionalService - Unknown owner - C:\Program Files\Fichiers communs\EPSON\EBAPI\eEBSVC.exe
O23 - Service: EPSON Printer Status Agent2 (EPSONStatusAgent2) - SEIKO EPSON CORPORATION - C:\Program Files\Fichiers communs\EPSON\EBAPI\SAgent2.exe
O23 - Service: France Telecom Routing Table Service (FTRTSVC) - France Telecom - C:\WINDOWS\System32\FTRTSVC.exe
O23 - Service: Google Software Updater (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: PIXMA Extended Survey Program (IJPLMSVC) - Unknown owner - C:\Program Files\Canon\IJPLM\IJPLMSVC.EXE
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: License Management Service ESD - Unknown owner - C:\Program Files\Fichiers communs\element5 Shared\Service\Licence Manager ESD.exe (file missing)
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe