Help pour analyse de logfile de hijackthis

Bonjour,

Peut-on m'aider à analyser ce logfile de hijackthis pour éliminer un logiciel malveillant qui installe des sites indésirables sur mon ordinateur? Merci beaucoup.

Logfile of HijackThis v1.99.1
Scan saved at 22:09:20, on 23/10/2018
Platform: Unknown Windows (WinNT 6.01.3505 SP1)
MSIE: Internet Explorer v11.0 (11.00.9600.18838)

Running processes:
C:\Windows\vVX3000.exe
C:\Program Files (x86)\AVAST Software\Avast Cleanup\TuneupUI.exe
C:\Program Files\AVAST Software\Avast\AvastUI.exe
C:\Users\Gil\AppData\Local\Temp\Temp1_hijackthis.zip\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = https://fr.yahoo.com/?fr=hp-avast&type=avastbcl
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = https://fr.yahoo.com/?fr=hp-avast&type=avastbcl
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = https://fr.yahoo.com/?fr=hp-avast&type=avastbcl
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 =
F2 - REG:system.ini: UserInit=C:\Windows\system32\userinit.exe
O1 - Hosts: 0.0.0.1 mssplus.mcafee.com
O2 - BHO: Canon Easy-WebPrint EX BHO - {3785D0AD-BFFF-47F6-BF5B-A587C162FED9} - C:\Program Files (x86)\Canon\Easy-WebPrint EX\ewpexbho.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
O4 - HKLM\..\Run: [HP Software Update] c:\Program Files (x86)\HP\HP Software Update\HPWuSchd2.exe
O4 - HKLM\..\Run: [LifeCam] "C:\Program Files (x86)\Microsoft LifeCam\LifeExp.exe"
O4 - HKLM\..\Run: [FbNotifications] C:\Program Files (x86)\Goto.Games\Funbridge2\FbNotificationsComServer.exe
O4 - HKLM\..\Run: [Dropbox] "C:\Program Files (x86)\Dropbox\Client\Dropbox.exe" /systemstartup
O4 - HKLM\..\Run: [CanonQuickMenu] C:\Program Files (x86)\Canon\Quick Menu\CNQMMAIN.EXE /logon
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files (x86)\Windows Live\Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [SUPERAntiSpyware] C:\Program Files\SUPERAntiSpyware\SUPERAntiSpyware.exe
O4 - HKCU\..\Run: [GarminExpressTrayApp] "C:\Program Files (x86)\Garmin\Express Tray\ExpressTray.exe"
O4 - HKCU\..\Run: [AvastBrowserAutoLaunch_764309DE53945BE02FC2D57802969BE4] "C:\Program Files (x86)\AVAST Software\Browser\Application\AvastBrowser.exe" --check-run=src=logon --auto-launch-at-startup --profile-directory="Default" --restore-last-session
O4 - Startup: Webshots.lnk = C:\Program Files (x86)\Webshots\3.1.5.7619\Launcher.exe
O4 - Global Startup: Avast Cleanup Premium.lnk = C:\Program Files (x86)\AVAST Software\Avast Cleanup\TuneupUI.exe
O8 - Extra context menu item: Add to Google Photos Screensa&ver - res://C:\Windows\system32\GPhotos.scr/200
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
O10 - Unknown file in Winsock LSP: c:\windows\system32\nlaapi.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\napinsp.dll
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
O11 - Options group: [INTERNATIONAL] International
O13 - Gopher Prefix:
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\Program Files (x86)\Windows Live\Messenger\msgrapp.dll
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\Program Files (x86)\Windows Live\Messenger\msgrapp.dll
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - (no file)
O18 - Protocol: wlmailhtml - {03C514A3-1EFB-4856-9F99-10D7BE1653C0} - C:\Program Files (x86)\Windows Live\Mail\mailcomm.dll
O18 - Protocol: wlpg - {E43EF6CD-A37A-4A9B-9E6F-83F89B8E6324} - C:\Program Files (x86)\Windows Live\Photo Gallery\AlbumDownloadProtocolHandler.dll
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: aswbIDSAgent - AVAST Software - C:\Program Files\AVAST Software\Avast\x64\aswidsagenta.exe
O23 - Service: Service %1!s! Update (avast) (avast) - Unknown owner - C:\Program Files (x86)\AVAST Software\Browser\Update\AvastBrowserUpdate.exe" /svc (file missing)
O23 - Service: Avast Antivirus (avast! Antivirus) - AVAST Software - C:\Program Files\AVAST Software\Avast\AvastSvc.exe
O23 - Service: Service %1!s! Update (avastm) (avastm) - Unknown owner - C:\Program Files (x86)\AVAST Software\Browser\Update\AvastBrowserUpdate.exe" /medsvc (file missing)
O23 - Service: Avast Cleanup Premium (CleanupPSvc) - AVAST Software - C:\Program Files (x86)\AVAST Software\Avast Cleanup\TuneupSvc.exe
O23 - Service: DbxSvc - Unknown owner - C:\Windows\system32\DbxSvc.exe (file missing)
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: Service Google Update (gupdate) (gupdate) - Unknown owner - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe" /svc (file missing)
O23 - Service: Service Google Update (gupdatem) (gupdatem) - Unknown owner - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe" /medsvc (file missing)
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files (x86)\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files (x86)\Common Files\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: @%SystemRoot%\system32\ieetwcollectorres.dll,-1000 (IEEtwCollectorService) - Unknown owner - C:\Windows\system32\IEEtwCollector.exe (file missing)
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: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: NVIDIA Display Driver Service (nvsvc) - Unknown owner - C:\Windows\system32\nvvsvc.exe (file missing)
O23 - Service: @%systemroot%\system32\psbase.dll,-300 (ProtectedStorage) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%SystemRoot%\system32\qwave.dll,-1 (QWAVE) - Unknown owner - %windir%\system32\svchost.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: @%SystemRoot%\system32\seclogon.dll,-7001 (seclogon) - Unknown owner - %windir%\system32\svchost.exe (file missing)
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: SAMSUNG Mobile Connectivity Service (ss_conn_service) - DEVGURU Co., LTD. - C:\Program Files (x86)\Samsung\USB Drivers\27_ssconn\conn\ss_conn_service.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: @%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 - %PROGRAMFILES%\Windows Media Player\wmpnetwk.exe (file missing)