Controllo log mbr e HJT. Possibile Rootkit?

[FrankSix]

Ciao a tutti, su notebook HP con Windows 7 da qualche tempo si nota rallentamento all'avvio. Ho fatto scansioni con Avast, MalwareBytes e HItManPro. Tutto pulito.
Dopo controllo con mbr.exe il log risultante è:

Stealth MBR rootkit/Mebroot/Sinowal/TDL4 detector 0.4.2 by Gmer, http://www.gmer.net
Windows 6.1.7601

device: opened successfully
user: error reading MBR
error: Read Handle non valido.
kernel: error reading MBR

Per completezza allego anche il log di HJT:

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 12:07:45, on 30/06/2012
Platform: Windows 7 SP1 (WinNT 6.00.3505)
MSIE: Internet Explorer v9.00 (9.00.8112.16446)
Boot mode: Normal

Running processes:
C:\Windows\System32\spool\drivers\x64\3\CNAP2LAK.EXE
C:\Program Files (x86)\Common Files\LightScribe\LightScribeControlPanel.exe
C:\Windows\system32\spool\DRIVERS\x64\3\CNAP2RPK.EXE
C:\Windows\system32\spool\DRIVERS\x64\3\CNABCSWK.EXE
C:\Program Files (x86)\Intel\Intel(R) Rapid Storage Technology\IAStorIcon.exe
C:\Program Files (x86)\Hewlett-Packard\HP Quick Launch\HPMSGSVC.exe
C:\Program Files\AVAST Software\Avast\AvastUI.exe
C:\Program Files\Motorola\Bluetooth\btplayerctrl.exe
C:\Users\Vincenti\Downloads\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://g.uk.msn.com/HPCON/6
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://g.uk.msn.com/HPCON/6
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://g.uk.msn.com/HPCON/6
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/HPCON/6
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=userinit.exe
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: QFX Software KeyScrambler - {2B9F5787-88A5-4945-90E7-C4B18563BC5E} - C:\Program Files (x86)\KeyScrambler\KeyScramblerIE.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files (x86)\Oracle\JavaFX 2.1 Runtime\bin\ssv.dll
O2 - BHO: avast! WebRep - {8E5E2654-AD2D-48bf-AC2D-D17F00898D06} - C:\Program Files\AVAST Software\Avast\aswWebRepIE.dll
O2 - BHO: Windows Live ID Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files (x86)\Oracle\JavaFX 2.1 Runtime\bin\jp2ssv.dll
O3 - Toolbar: avast! WebRep - {8E5E2654-AD2D-48bf-AC2D-D17F00898D06} - C:\Program Files\AVAST Software\Avast\aswWebRepIE.dll
O4 - HKLM\..\Run: [IAStorIcon] C:\Program Files (x86)\Intel\Intel(R) Rapid Storage Technology\IAStorIcon.exe
O4 - HKLM\..\Run: [HP Quick Launch] C:\Program Files (x86)\Hewlett-Packard\HP Quick Launch\HPMSGSVC.exe
O4 - HKLM\..\Run: [Easybits Recovery] C:\Program Files (x86)\EasyBits For Kids\ezRecover.exe
O4 - HKLM\..\Run: [avast] "C:\Program Files\AVAST Software\Avast\avastUI.exe" /nogui
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe"
O4 - HKCU\..\Run: [LightScribe Control Panel] C:\Program Files (x86)\Common Files\LightScribe\LightScribeControlPanel.exe -hidden
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-19\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-20\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'SERVIZIO DI RETE')
O9 - Extra button: Inserisci blog - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files (x86)\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: Inserisci &blog in Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files (x86)\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: (no name) - {5C106A59-CC3C-4caa-81A4-6D909B5ACE23} - C:\Program Files (x86)\KeyScrambler\KeyScramblerIE.dll
O9 - Extra 'Tools' menuitem: &KeyScrambler Options - {5C106A59-CC3C-4caa-81A4-6D909B5ACE23} - C:\Program Files (x86)\KeyScrambler\KeyScramblerIE.dll
O9 - Extra button: @C:\Program Files\Motorola\Bluetooth\btmshell.dll,-137 - {bd707fe6-39f6-4bda-9265-86a76719bdc5} - C:\Program Files\Motorola\Bluetooth\btmiesend.htm
O9 - Extra 'Tools' menuitem: @C:\Program Files\Motorola\Bluetooth\btmshell.dll,-137 - {bd707fe6-39f6-4bda-9265-86a76719bdc5} - C:\Program Files\Motorola\Bluetooth\btmiesend.htm
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
O16 - DPF: {C3F79A2B-B9B4-4A66-B012-3EE46475B072} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/Me ... b56907.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{03D40980-5564-4266-BB31-59F705DB40DB}: NameServer = 83.224.70.94 83.224.66.138
O17 - HKLM\System\CS1\Services\Tcpip\..\{03D40980-5564-4266-BB31-59F705DB40DB}: NameServer = 83.224.70.94 83.224.66.138
O17 - HKLM\System\CS2\Services\Tcpip\..\{03D40980-5564-4266-BB31-59F705DB40DB}: NameServer = 83.224.70.94 83.224.66.138
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~2\COMMON~1\Skype\SKYPE4~1.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: Andrea RT Filters Service (AERTFilters) - Andrea Electronics Corporation - C:\Program Files\Realtek\Audio\HDA\AERTSr64.exe
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\Windows\System32\alg.exe (file missing)
O23 - Service: avast! Antivirus - AVAST Software - C:\Program Files\AVAST Software\Avast\AvastSvc.exe
O23 - Service: Bluetooth Device Manager - Motorola, Inc. - C:\Program Files\Motorola\Bluetooth\devmgrsrv.exe
O23 - Service: Bluetooth Media Service - Motorola, Inc. - C:\Program Files\Motorola\Bluetooth\audiosrv.exe
O23 - Service: Bluetooth OBEX Service - Motorola, Inc. - C:\Program Files\Motorola\Bluetooth\obexsrv.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: FLEXnet Licensing Service - Acresso Software Inc. - C:\Program Files (x86)\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: FLEXnet Licensing Service 64 - Acresso Software Inc. - C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService64.exe
O23 - Service: GameConsoleService - WildTangent, Inc. - C:\Program Files (x86)\HP Games\HP Game Console\GameConsoleService.exe
O23 - Service: Servizio di Google Update (gupdate) (gupdate) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Servizio Google Update (gupdatem) (gupdatem) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.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 Wireless Assistant Service - Hewlett-Packard Company - C:\Program Files\Hewlett-Packard\HP Wireless Assistant\HPWA_Service.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 - Unknown owner - C:\Program Files (x86)\Hewlett-Packard\HP Quick Launch\HPWMISVC.exe
O23 - Service: Intel(R) Rapid Storage Technology (IAStorDataMgrSvc) - Intel Corporation - C:\Program Files (x86)\Intel\Intel(R) Rapid Storage Technology\IAStorDataMgrSvc.exe
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: Intel(R) Management and Security Application Local Management Service (LMS) - Intel Corporation - C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\LMS\LMS.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: @%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: RtVOsdService Installer (RtVOsdService) - Realtek Semiconductor Corp. - C:\Program Files\Realtek\RtVOsd\RtVOsdService.exe
O23 - Service: @%SystemRoot%\system32\samsrv.dll,-1 (SamSs) - Unknown owner - C:\Windows\system32\lsass.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: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\Windows\system32\UI0Detect.exe (file missing)
O23 - Service: Intel(R) Management & Security Application User Notification Service (UNS) - Intel Corporation - C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\UNS\UNS.exe
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: Servizio Vodafone Mobile Broadband (VmbService) - Vodafone - C:\Program Files (x86)\Vodafone\Vodafone Mobile Broadband\Bin\VmbService.exe
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 - 12126 bytes

Secondo voi c'è qualcosa che non va? Grazie a chi potrà darmi una mano!

[gigicookie]

Non me ne intendo molto, ma queste righe:
user: error reading MBR
error: Read Handle non valido.
kernel: error reading MBR
non sono normali

[crazy.cat]

Non me ne intendo molto, ma queste righe:
non sono normali

Forse si se è un windows 7 a 64 bit.
Che versione hai di windows 7?

[Uomo_Senza_Sonno]

Stai utilizzando lo stealth rootkit detector su un sistema x64, e per questo ti restituisce quest'errore. Prova con aswMBR Dal log di HJT non mi sembra ci sia nulla di particolare.

[gigicookie]

Non me ne intendo molto, ma queste righe:
non sono normali

Forse si se è un windows 7 a 64 bit.
Che versione hai di windows 7?

Ops.. non lo sapevo... in effetti c'è la cartella Program Files (x86) quindi è una 64 bit

[FrankSix]

Grazie a tutti delle risposte!
Ho controllato ed effettivamente il sistema è a 64 bit!
Appena avrò possibilità (il pc non è mio), scaricherò il tool consigliato da Uomo Senza Sonno ed effettuerò un ulteriore controllo, postando l'ulteriore log...Anche se a questo punto credo sia improbabile che la causa del rallentamento sia un malware! Voi che dite?