Désolé, je viens d'avoir une étincelle d'intelligence...
Voici(peut-être) le rapport HiJack:
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 16:41:54, on 18/01/2013
Platform: Unknown Windows (WinNT 6.01.3505 SP1)
MSIE: Internet Explorer v9.00 (9.00.8112.16457)
Boot mode: Normal
Running processes:
C:\Program Files (x86)\CyberLink\YouCam\YCMMirage.exe
C:\Program Files (x86)\AVG\AVG2013\avgui.exe
C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe
C:\Program Files (x86)\Hosts_Anti_Adwares_PUPs\HOSTS_Anti-Adware_main.exe
C:\Users\philippe\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\philippe\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\philippe\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\philippe\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\philippe\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\philippe\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\philippe\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Users\philippe\Downloads\pjjoint_uploader (1).exe
C:\Users\philippe\AppData\Local\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Trend Micro\HijackThis\HijackThis.exe
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL =
http://g.uk.msn.com/HPNOT/3
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page =
http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
http://r.orange.fr/r/Ohome_portail?ref=O_OI_defaultPage
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL =
http://g.uk.msn.com/HPNOT/3
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 =
http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page =
http://g.uk.msn.com/HPNOT/3
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = C:\Windows\SysWOW64\blank.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: ToolbarOrange.InitToolbarBHO - {1d970ed5-3eda-438d-bffd-715931e2775b} - mscoree.dll (file missing)
O2 - BHO: AMD SteadyVideo BHO - {6C680BAE-655C-4E3D-8FC4-E6A520C3D928} - C:\Program Files (x86)\amd\SteadyVideo\SteadyVideo.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files (x86)\Java\jre7\bin\ssv.dll
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live ID - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - C:\Program Files (x86)\Google\Google Toolbar\GoogleToolbar_32.dll
O2 - BHO: SkypeIEPluginBHO - {AE805869-2E5C-4ED4-8F7B-F1F7851A4497} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files (x86)\Java\jre7\bin\jp2ssv.dll
O2 - BHO: HP Network Check Helper - {E76FD755-C1BA-4DCB-9F13-99BD91223ADE} - C:\Program Files (x86)\Hewlett-Packard\HP Support Framework\Resources\HPNetworkCheck\HPNetworkCheckPlugin.dll
O3 - Toolbar: Google Toolbar - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - C:\Program Files (x86)\Google\Google Toolbar\GoogleToolbar_32.dll
O4 - HKLM\..\Run: [AVG_UI] "C:\Program Files (x86)\AVG\AVG2013\avgui.exe" /TRAYONLY
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [HOSTS Anti-Adware_PUPs] C:\Program Files (x86)\Hosts_Anti_Adwares_PUPs\HOSTS_Anti-Adware_main.exe
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-19\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-20\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'SERVICE RÉSEAU')
O8 - Extra context menu item: ajouter cette page à vos favoris Orange - C:\Users\philippe\AppData\Roaming\Orange\OrangeInside\src\addfavorites_html\addfavorites.html
O8 - Extra context menu item: envoyer le texte sélectionné par sms - C:\Users\philippe\AppData\Roaming\Orange\OrangeInside\src\sendsmsselectedtext_html\sendsmsselectedtext.html
O8 - Extra context menu item: envoyer par sms - C:\Users\philippe\AppData\Roaming\Orange\OrangeInside\src\sendsms_html\sendsms.html
O8 - Extra context menu item: envoyer un mail - C:\Users\philippe\AppData\Roaming\Orange\OrangeInside\src\sendmail_html\sendmail.html
O8 - Extra context menu item: orange.fr - C:\Users\philippe\AppData\Roaming\Orange\OrangeInside\src\orange_html\orange.html
O8 - Extra context menu item: rechercher le texte sélectionné - C:\Users\philippe\AppData\Roaming\Orange\OrangeInside\src\selectedsearch_html\selectedsearch.html
O8 - Extra context menu item: traduire la page - C:\Users\philippe\AppData\Roaming\Orange\OrangeInside\src\translate_html\translate.html
O8 - Extra context menu item: traduire le texte sélectionné - C:\Users\philippe\AppData\Roaming\Orange\OrangeInside\src\translateSelectedText_html\translateSelectedText.html
O9 - Extra button: @C:\Program Files (x86)\Windows Live\Writer\WindowsLiveWriterShortcuts.dll,-1004 - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files (x86)\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: @C:\Program Files (x86)\Windows Live\Writer\WindowsLiveWriterShortcuts.dll,-1003 - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files (x86)\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: @C:\Program Files (x86)\Hewlett-Packard\HP Support Framework\Resources\HPNetworkCheck\HPNetworkCheckPlugin.dll,-103 - {25510184-5A38-4A99-B273-DCA8EEF6CD08} - C:\Program Files (x86)\Hewlett-Packard\HP Support Framework\Resources\HPNetworkCheck\NCLauncherFromIE.exe
O9 - Extra 'Tools' menuitem: @C:\Program Files (x86)\Hewlett-Packard\HP Support Framework\Resources\HPNetworkCheck\HPNetworkCheckPlugin.dll,-102 - {25510184-5A38-4A99-B273-DCA8EEF6CD08} - C:\Program Files (x86)\Hewlett-Packard\HP Support Framework\Resources\HPNetworkCheck\NCLauncherFromIE.exe
O9 - Extra button: Skype Click to Call - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O9 - Extra 'Tools' menuitem: Skype Click to Call - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O9 - Extra button: @C:\Program Files (x86)\Evernote\Evernote\Resource.dll,-101 - {A95fe080-8f5d-11d2-a20b-00aa003c157a} - res://C:\Program Files (x86)\Evernote\Evernote\EvernoteIE.dll/204 (file missing)
O9 - Extra 'Tools' menuitem: @C:\Program Files (x86)\Evernote\Evernote\Resource.dll,-101 - {A95fe080-8f5d-11d2-a20b-00aa003c157a} - res://C:\Program Files (x86)\Evernote\Evernote\EvernoteIE.dll/204 (file missing)
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - (no file)
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - (no file)
O10 - Unknown file in Winsock LSP: c:\program files (x86)\common files\microsoft shared\windows live\wlidnsp.dll
O10 - Unknown file in Winsock LSP: c:\program files (x86)\common files\microsoft shared\windows live\wlidnsp.dll
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O13 - Gopher Prefix:
O17 - HKLM\System\CCS\Services\Tcpip\..\{8D79BEF7-0046-4FAA-A67A-E7D5938E9227}: NameServer = 91.121.19.195,80.120.246.129
O18 - Protocol: skype-ie-addon-data - {91774881-D725-4E58-B298-07617B9B86A8} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~2\COMMON~1\Skype\SKYPE4~1.DLL
O18 - Protocol: wlpg - {E43EF6CD-A37A-4A9B-9E6F-83F89B8E6324} - C:\Program Files (x86)\Windows Live\Photo Gallery\AlbumDownloadProtocolHandler.dll
O18 - Filter: video/mp4 - {20C75730-7C25-476B-95DC-C65810F9E489} - C:\Program Files (x86)\amd\SteadyVideo\VideoMIMEFilter.dll
O18 - Filter: video/x-flv - {20C75730-7C25-476B-95DC-C65810F9E489} - C:\Program Files (x86)\amd\SteadyVideo\VideoMIMEFilter.dll
O23 - Service: Adobe Acrobat Update Service (AdobeARMservice) - Adobe Systems Incorporated - C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\armsvc.exe
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\Windows\SysWOW64\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\Windows\System32\alg.exe (file missing)
O23 - Service: AMD External Events Utility - Unknown owner - C:\Windows\system32\atiesrxx.exe (file missing)
O23 - Service: AVGIDSAgent - AVG Technologies CZ, s.r.o. - C:\Program Files (x86)\AVG\AVG2013\avgidsagent.exe
O23 - Service: AVG WatchDog (avgwd) - AVG Technologies CZ, s.r.o. - C:\Program Files (x86)\AVG\AVG2013\avgwdsvc.exe
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\Windows\System32\lsass.exe (file missing)
O23 - Service: Easybits Services for Windows (ezSharedSvc) - EasyBits Software AS - C:\Windows\System32\ezSharedSvcHost.exe
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\Windows\system32\fxssvc.exe (file missing)
O23 - Service: GamesAppService - WildTangent, Inc. - C:\Program Files (x86)\WildTangent Games\App\GamesAppService.exe
O23 - Service: Service Google Update (gupdate) (gupdate) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Service Google Update (gupdatem) (gupdatem) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Google Software Updater (gusvc) - Google - C:\Program Files (x86)\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: HOSTS Anti-PUPs - Unknown owner - C:\Program Files (x86)\Hosts_Anti_Adwares_PUPs\HOSTS_Anti-Adware.exe
O23 - Service: HP Support Assistant Service - Hewlett-Packard Company - C:\Program Files (x86)\Hewlett-Packard\HP Support Framework\hpsa_service.exe
O23 - Service: HP Auto (HPAuto) - Hewlett-Packard - C:\Program Files\Hewlett-Packard\HP Auto\HPAuto.exe
O23 - Service: HP Client Services (HPClientSvc) - Hewlett-Packard Company - C:\Program Files\Hewlett-Packard\HP Client Services\HPClientServices.exe
O23 - Service: HP Connection Manager 4 Service (hpCMSrv) - Hewlett-Packard Development Company L.P. - C:\Program Files (x86)\Hewlett-Packard\HP Connection Manager\hpCMSrv.exe
O23 - Service: HP Quick Synchronization Service (HPDrvMntSvc.exe) - Hewlett-Packard Company - C:\Program Files (x86)\Hewlett-Packard\Shared\HPDrvMntSvc.exe
O23 - Service: HP Software Framework Service (hpqwmiex) - Hewlett-Packard Company - C:\Program Files (x86)\Hewlett-Packard\Shared\hpqWmiEx.exe
O23 - Service: HPWMISVC - Hewlett-Packard Development Company, L.P. - C:\Program Files (x86)\Hewlett-Packard\HP Quick Launch\HPWMISVC.exe
O23 - Service: IconMan_R - Realsil Microelectronics Inc. - C:\Program Files (x86)\Realtek\Realtek PCIE Card Reader\RIconMan.exe
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @comres.dll,-2797 (MSDTC) - Unknown owner - C:\Windows\System32\msdtc.exe (file missing)
O23 - Service: @mqutil.dll,-6102 (MSMQ) - Unknown owner - C:\Windows\system32\mqsvc.exe (file missing)
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: Orange update Core Service - France Telecom SA - C:\Program Files (x86)\Orange\OrangeUpdate\Service\OUCore.exe
O23 - Service: @%systemroot%\system32\psbase.dll,-300 (ProtectedStorage) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%systemroot%\system32\Locator.exe,-2 (RpcLocator) - Unknown owner - C:\Windows\system32\locator.exe (file missing)
O23 - Service: @%SystemRoot%\system32\samsrv.dll,-1 (SamSs) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: Skype Updater (SkypeUpdate) - Skype Technologies - C:\Program Files (x86)\Skype\Updater\Updater.exe
O23 - Service: @%SystemRoot%\system32\snmptrap.exe,-3 (SNMPTRAP) - Unknown owner - C:\Windows\System32\snmptrap.exe (file missing)
O23 - Service: @%systemroot%\system32\spoolsv.exe,-1 (Spooler) - Unknown owner - C:\Windows\System32\spoolsv.exe (file missing)
O23 - Service: @%SystemRoot%\system32\sppsvc.exe,-101 (sppsvc) - Unknown owner - C:\Windows\system32\sppsvc.exe (file missing)
O23 - Service: @%SystemRoot%\system32\stlang64.dll,-10101 (STacSV) - IDT, Inc. - C:\Program Files\IDT\WDM\STacSV64.exe
O23 - Service: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\Windows\system32\UI0Detect.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vaultsvc.dll,-1003 (VaultSvc) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vds.exe,-100 (vds) - Unknown owner - C:\Windows\System32\vds.exe (file missing)
O23 - Service: @%systemroot%\system32\vssvc.exe,-102 (VSS) - Unknown owner - C:\Windows\system32\vssvc.exe (file missing)
O23 - Service: vToolbarUpdater13.3.2 - Unknown owner - C:\Program Files (x86)\Common Files\AVG Secure Search\vToolbarUpdater\13.3.2\ToolbarUpdater.exe
O23 - Service: @%SystemRoot%\system32\Wat\WatUX.exe,-601 (WatAdminSvc) - Unknown owner - C:\Windows\system32\Wat\WatAdminSvc.exe (file missing)
O23 - Service: @%systemroot%\system32\wbengine.exe,-104 (wbengine) - Unknown owner - C:\Windows\system32\wbengine.exe (file missing)
O23 - Service: @%Systemroot%\system32\wbem\wmiapsrv.exe,-110 (wmiApSrv) - Unknown owner - C:\Windows\system32\wbem\WmiApSrv.exe (file missing)
O23 - Service: @%PROGRAMFILES%\Windows Media Player\wmpnetwk.exe,-101 (WMPNetworkSvc) - Unknown owner - C:\Program Files (x86)\Windows Media Player\wmpnetwk.exe (file missing)
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End of file - 14532 bytes