Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 20:45:43, on 21/06/2013
Platform: Windows 7 SP1 (WinNT 6.00.3505)
MSIE: Internet Explorer v10.0 (10.00.9200.16611)
Boot mode: Normal

Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Windows\system32\taskhost.exe
C:\Windows\system32\taskeng.exe
C:\Program Files\Auslogics\Auslogics Disk Defrag\DiskDefrag.exe
C:\Program Files\Norton 360\Engine\20.4.0.40\ccSvcHst.exe
C:\Program Files\NVIDIA Corporation\NVIDIA Update Core\ComUpdatus.exe
C:\Program Files\TuneUp Utilities 2013\TuneUpUtilitiesApp32.exe
C:\Program Files\ASUS\Turbo Key\TurboKey.exe
C:\Program Files\NVIDIA Corporation\NVIDIA Update Core\NvTmru.exe
C:\Program Files\Common Files\Java\Java Update\jusched.exe
C:\Program Files\NVIDIA Corporation\Display\nvtray.exe
C:\Program Files\Trend Micro\HiJackThis\HiJackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.bing.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
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 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O2 - BHO: HP Print Enhancer - {0347C33E-8762-4905-BF09-768834316C61} - C:\Program Files\HP\Digital Imaging\Smart Web Printing\hpswp_printenhancer.dll
O2 - BHO: Norton Identity Protection - {602ADB0E-4AFF-4217-8AA1-95DAC4DFA408} - C:\Program Files\Norton 360\Engine\20.4.0.40\coIEPlg.dll
O2 - BHO: Norton Vulnerability Protection - {6D53EC84-6AAE-4787-AEEE-F4628F01010C} - C:\Program Files\Norton 360\Engine\20.4.0.40\IPS\IPSBHO.DLL
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre7\bin\ssv.dll
O2 - BHO: Windows Live ID Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: SkypeIEPluginBHO - {AE805869-2E5C-4ED4-8F7B-F1F7851A4497} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O2 - BHO: Bing Bar Helper - {d2ce3e00-f94a-4740-988e-03dc2f38c34f} - C:\Program Files\Microsoft\BingBar\7.1.391.0\BingExt.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre7\bin\jp2ssv.dll
O2 - BHO: HP Smart BHO Class - {FFFFFFFF-CF4E-4F2B-BDC2-0E72E116A856} - C:\Program Files\HP\Digital Imaging\Smart Web Printing\hpswp_BHO.dll
O3 - Toolbar: Norton Toolbar - {7FEBEFE3-6B19-4349-98D2-FFB09D4B49CA} - C:\Program Files\Norton 360\Engine\20.4.0.40\coIEPlg.dll
O4 - HKLM\..\Run: [Turbo Key] "C:\Program Files\ASUS\Turbo Key\TurboKey.exe"
O4 - HKLM\..\Run: [Nvtmru] "C:\Program Files\NVIDIA Corporation\NVIDIA Update Core\nvtmru.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Common Files\Java\Java Update\jusched.exe"
O4 - HKCU\..\Run: [DAEMON Tools Lite] "C:\Program Files\DAEMON Tools Lite\DTLite.exe" -autorun
O4 - HKUS\S-1-5-21-3779659807-2908217341-3138710112-1003\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'UpdatusUser')
O4 - HKUS\S-1-5-21-3779659807-2908217341-3138710112-1003\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'UpdatusUser')
O9 - Extra button: Skype Click to Call - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O9 - Extra button: Visualizza o nasconde HP Smart Web Printing - {DDE87865-83C5-48c4-8357-2F5B1AA84522} - C:\Program Files\HP\Digital Imaging\Smart Web Printing\hpswp_BHO.dll
O10 - Unknown file in Winsock LSP: c:\program files\common files\microsoft shared\windows live\wlidnsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\common files\microsoft shared\windows live\wlidnsp.dll
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/flashplayer/current/swflash.cab
O16 - DPF: {D4B68B83-8710-488B-A692-D74B50BA558E} (Creative Software AutoUpdate Support Package 2) - http://ccfiles.creative.com/Web/softwareupdate/ocx/15113/CTPIDPDE.cab
O16 - DPF: {E705A591-DA3C-4228-B0D5-A356DBA42FBF} (Creative Software AutoUpdate 2) - http://ccfiles.creative.com/Web/softwareupdate/su2/ocx/20015/CTSUEng.cab
O16 - DPF: {F6ACF75C-C32C-447B-9BEF-46B766368D29} (Creative Software AutoUpdate Support Package) - http://ccfiles.creative.com/Web/softwareupdate/ocx/121022/CTPID.cab
O18 - Protocol: skype-ie-addon-data - {91774881-D725-4E58-B298-07617B9B86A8} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\Windows\system32\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exe
O23 - Service: ASUS System Control Service (AsSysCtrlService) - Unknown owner - C:\Program Files\ASUS\AsSysCtrlService\1.00.02\AsSysCtrlService.exe
O23 - Service: Servizio Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: Creative Audio Engine Licensing Service - Creative Labs - C:\Program Files\Common Files\Creative Labs Shared\Service\CTAELicensing.exe
O23 - Service: Creative Audio Service (CTAudSvcService) - Creative Technology Ltd - C:\Program Files\Creative\Shared Files\CTAudSvc.exe
O23 - Service: FNEFFGLIFXYHWWCIX - Sysinternals - www.sysinternals.com - C:\Users\Vincenzo\AppData\Local\Temp\FNEFFGLIFXYHWWCIX.exe
O23 - Service: Servizio iPod (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Program Files\Mozilla Maintenance Service\maintenanceservice.exe
O23 - Service: Norton 360 (N360) - Symantec Corporation - C:\Program Files\Norton 360\Engine\20.4.0.40\ccSvcHst.exe
O23 - Service: NVIDIA Display Driver Service (nvsvc) - NVIDIA Corporation - C:\Windows\system32\nvvsvc.exe
O23 - Service: NVIDIA Update Service Daemon (nvUpdatusService) - NVIDIA Corporation - C:\Program Files\NVIDIA Corporation\NVIDIA Update Core\daemonu.exe
O23 - Service: PnkBstrA - Unknown owner - C:\Windows\system32\PnkBstrA.exe
O23 - Service: Skype C2C Service - Skype Technologies S.A. - C:\ProgramData\Skype\Toolbars\Skype C2C Service\c2c_service.exe
O23 - Service: Skype Updater (SkypeUpdate) - Skype Technologies - C:\Program Files\Skype\Updater\Updater.exe
O23 - Service: NVIDIA Stereoscopic 3D Driver Service (Stereo Service) - NVIDIA Corporation - C:\Program Files\NVIDIA Corporation\3D Vision\nvSCPAPISvr.exe
O23 - Service: TuneUp Utilities Service (TuneUp.UtilitiesSvc) - TuneUp Software - C:\Program Files\TuneUp Utilities 2013\TuneUpUtilitiesService32.exe
O23 - Service: VECJBSVLN - Sysinternals - www.sysinternals.com - C:\Users\Vincenzo\AppData\Local\Temp\VECJBSVLN.exe

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End of file - 7686 bytes

Ciao.
Il log non presenta problemi.
Riguardo il "comportamento strano" dovrei sapere di che tipo è, questo comportamento.

Ciao.
Le informazioni sono poche....

Vorrei sapere con quale tool hai scansionato, e possibilmente il nome del virus che ha trovato.
Se hai ancora installato il tool, dovrebbe avere una quarantena in cui ha eliminato il virus.

Postala qui.

Se funziona bene, non c'è motivo di fare scansioni.
Nel caso riscontri anomalie, o malfunzionamenti, torna pure qui.

Di niente.
Ciao.