Durante una pulizia con Ccleaner, all'improvviso MSE mi ha individuato e messo in quarantena il trojan Exploit:HTML/IframeRef.gen che ho subito eliminato.

Poi ho passato Malawarebytes, JRT e ADW Cleaner, ma tutto negativo, infine altro passaggio con MSE ancora negativo.

Per scrupolo mi date un occhio al log di Hijack


Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 19:51:04, on 07/04/2015
Platform: Windows 7 SP1 (WinNT 6.00.3505)
MSIE: Internet Explorer v11.0 (11.00.9600.17689)
Boot mode: Normal

Running processes:
C:\Program Files (x86)\Canon\Quick Menu\CNQMMAIN.EXE
C:\Program Files (x86)\Canon\Quick Menu\CNQMUPDT.EXE
C:\Program Files (x86)\Canon\Quick Menu\CNQMSWCS.exe
C:\Windows\SysWOW64\cmd.exe
C:\Program Files (x86)\Trend Micro\HiJackThis\HiJackThis.exe
C:\Program Files (x86)\Mozilla Firefox\firefox.exe
C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\reg.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/p/?LinkId=255141
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://go.microsoft.com/fwlink/p/?LinkId=255141
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: Canon Easy-WebPrint EX BHO - {3785D0AD-BFFF-47F6-BF5B-A587C162FED9} - C:\Program Files (x86)\Canon\Easy-WebPrint EX\ewpexbho.dll
O2 - BHO: PXCIEaddin - {42DFA04F-0F16-418e-B80C-AB97A5AFAD39} - C:\Program Files (x86)\Tracker Software\PDF-XChange 4\PXCIEAddin4.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files (x86)\Java\jre1.8.0_40\bin\ssv.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files (x86)\Java\jre1.8.0_40\bin\jp2ssv.dll
O4 - HKLM\..\Run: [WIRELESS-KB-LED-STATUS] C:\Program Files (x86)\Wireless Keyboard Driver\LedStatusApp.exe
O4 - HKLM\..\Run: [NUSB3MON] "C:\Program Files (x86)\Renesas Electronics\USB 3.0 Host Controller Driver\Application\nusb3mon.exe"
O4 - HKLM\..\Run: [CanonQuickMenu] C:\Program Files (x86)\Canon\Quick Menu\CNQMMAIN.EXE /logon
O4 - HKLM\..\Run: [Controllo del Calendario di Ulead Photo Express] C:\Program Files (x86)\Ulead Systems\Ulead Photo Express 5 SE\calcheck.exe
O4 - HKCU\..\Run: [MyDriveConnect.exe] "C:\Program Files (x86)\MyDrive Connect\MyDriveConnect.exe"
O4 - HKCU\..\Run: [TomTomHOME.exe] "C:\Program Files (x86)\TomTom HOME 2\TomTomHOMERunner.exe"
O4 - HKUS\S-1-5-21-1937300064-3510929270-2938044212-1000-{ED1FC765-E35E-4C3D-BF15-2C2B11260CE4}-0\..\Run: [MyDriveConnect.exe] "C:\Program Files (x86)\MyDrive Connect\MyDriveConnect.exe" (User '?')
O4 - HKUS\S-1-5-21-1937300064-3510929270-2938044212-1000-{ED1FC765-E35E-4C3D-BF15-2C2B11260CE4}-0\..\Run: [TomTomHOME.exe] "C:\Program Files (x86)\TomTom HOME 2\TomTomHOMERunner.exe" (User '?')
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~2\MICROS~2\Office12\REFIEBAR.DLL
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O17 - HKLM\System\CCS\Services\Tcpip\..\{A701AD69-608A-46AF-A726-53D6CAAC8E74}: NameServer = 8.8.8.8
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~2\COMMON~1\Skype\SKYPE4~1.DLL
O20 - Winlogon Notify: SDWinLogon - SDWinLogon.dll (file missing)
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: CLHNServiceForPowerDVD - Unknown owner - C:\Program Files (x86)\CyberLink\PowerDVD11\Kernel\DMP\CLHNServiceForPowerDVD.exe
O23 - Service: CyberLink PowerDVD 11.0 Monitor Service - CyberLink - C:\Program Files (x86)\CyberLink\PowerDVD11\Common\MediaServer\CLMSMonitorService.exe
O23 - Service: CyberLink PowerDVD 11.0 Service - CyberLink - C:\Program Files (x86)\CyberLink\PowerDVD11\Common\MediaServer\CLMSServerForPDVD11.exe
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\Windows\System32\lsass.exe (file missing)
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\Windows\system32\fxssvc.exe (file missing)
O23 - Service: Foxit Cloud Safe Update Service (FoxitCloudUpdateService) - Foxit Software Inc. - C:\Program Files (x86)\Foxit Software\Foxit Reader\Foxit Cloud\FCUpdateService.exe
O23 - Service: NVIDIA GeForce Experience Service (GfExperienceService) - NVIDIA Corporation - C:\Program Files\NVIDIA Corporation\GeForce Experience Service\GfExperienceService.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: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Program Files (x86)\Common Files\LightScribe\LSSrvc.exe
O23 - Service: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
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 Network Service (NvNetworkService) - NVIDIA Corporation - C:\Program Files (x86)\NVIDIA Corporation\NetService\NvNetworkService.exe
O23 - Service: NVIDIA Streamer Service (NvStreamSvc) - NVIDIA Corporation - C:\Program Files\NVIDIA Corporation\NvStreamSrv\nvstreamsvc.exe
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\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: Spybot-S&D 2 Scanner Service (SDScannerService) - Safer-Networking Ltd. - C:\Program Files (x86)\Spybot - Search & Destroy 2\SDFSSvc.exe
O23 - Service: Spybot-S&D 2 Updating Service (SDUpdateService) - Safer-Networking Ltd. - C:\Program Files (x86)\Spybot - Search & Destroy 2\SDUpdSvc.exe
O23 - Service: Spybot-S&D 2 Security Center Service (SDWSCService) - Safer-Networking Ltd. - C:\Program Files (x86)\Spybot - Search & Destroy 2\SDWSCSvc.exe
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: NVIDIA Stereoscopic 3D Driver Service (Stereo Service) - NVIDIA Corporation - C:\Program Files (x86)\NVIDIA Corporation\3D Vision\nvSCPAPISvr.exe
O23 - Service: SureThing Labelflash service - MicroVision Development, Inc. - C:\Program Files (x86)\Common Files\SureThing Shared\stllssvr.exe
O23 - Service: TomTomHOMEService - TomTom - C:\Program Files (x86)\TomTom HOME 2\TomTomHOMEService.exe
O23 - Service: TOSHIBA Bluetooth Service - TOSHIBA CORPORATION - C:\Program Files (x86)\Toshiba\Bluetooth Toshiba Stack\TosBtSrv.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 - C:\Program Files (x86)\Windows Media Player\wmpnetwk.exe (file missing)

--
End of file - 9208 bytes

MSE ha fatto il suo lavoro egregiamente, alcuni antivirus non lo rilevano o non riescono ad eliminarlo.
Il log è pulito ma è meglio togliere alcuni sw dall'Avvio perchè non servono, i programmi rimangono intatti.

Chiudi tutti i programmi e disconnesso da internet,
Lancia HijackThis e clicca sul secondo pulsante Do a system scan only
inserisci il segno di spunta nel quadratino davanti alle righe sotto indicate, una volta seleziona clicca il tasto Fix checked per procedere all'eliminazione, comparirà una finestra clicca su SI per accettare e l'operazione è conclusa.

O4 - HKLM\..\Run: [WIRELESS-KB-LED-STATUS] C:\Program Files (x86)\Wireless Keyboard Driver\LedStatusApp.exe
O4 - HKLM\..\Run: [CanonQuickMenu] C:\Program Files (x86)\Canon\Quick Menu\CNQMMAIN.EXE /logon
O4 - HKLM\..\Run: [Controllo del Calendario di Ulead Photo Express] C:\Program Files (x86)\Ulead Systems\Ulead Photo Express 5 SE\calcheck.exe

O4 - HKCU\..\Run: [MyDriveConnect.exe] "C:\Program Files (x86)\MyDrive Connect\MyDriveConnect.exe"

O4 - HKCU\..\Run: [TomTomHOME.exe] "C:\Program Files (x86)\TomTom HOME 2\TomTomHOMERunner.exe"

O4 - HKUS\S-1-5-21-1937300064-3510929270-2938044212-1000-{ED1FC765-E35E-4C3D-BF15-2C2 B11260CE4}-0\..\Run: [MyDriveConnect.exe] "C:\Program Files (x86)\MyDrive Connect\MyDriveConnect.exe" (User '?')

O4 - HKUS\S-1-5-21-1937300064-3510929270-2938044212-1000-{ED1FC765-E35E-4C3D-BF15-2C2 B11260CE4}-0\..\Run: [TomTomHOME.exe] "C:\Program Files (x86)\TomTom HOME 2\TomTomHOMERunner.exe" (User '?')

Poi pulisci con Ccleaner compreso il Registro.
Controlla fra i motori di ricerca che non ci sia qualche motore sconosciuto ed eventualmente elimina.
Ciao