Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 14.50.02, on 22/10/2011
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\Microsoft Security Client\Antimalware\MsMpEng.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\Microsoft\BingBar\SeaPort.EXE
C:\Programmi\WIDCOMM\Software Bluetooth\bin\btwdins.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\svchost.exe
C:\Programmi\WINDEasyConnect\WTGService.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\system32\igfxtray.exe
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxsrvc.exe
C:\Programmi\EeePC\ACPI\AsAcpiSvr.exe
C:\Programmi\EeePC\ACPI\AsEPCMon.exe
C:\Programmi\EeePC\ACPI\AsTray.exe
C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
C:\Programmi\Asus\LiveUpdate\LiveUpdate.exe
C:\WINDOWS\system32\igfxext.exe
C:\WINDOWS\RTHDCPL.EXE
C:\Programmi\Microsoft Security Client\msseces.exe
C:\Programmi\facemoods.com\facemoods\1.4.17.11\facemoodssrv.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\ASUS\Eee Docking\Eee Docking.exe
C:\Programmi\Windows Live\Messenger\msnmsgr.exe
C:\Programmi\SUPERAntiSpyware\SUPERAntiSpyware.exe
C:\Programmi\ASUS\EeePC\Super Hybrid Engine\SuperHybridEngine.exe
C:\Programmi\WIDCOMM\Software Bluetooth\BTTray.exe
C:\Programmi\Microsoft Office\Office12\ONENOTEM.EXE
C:\Programmi\Widget vodafone.it\Widget vodafone.it.exe
C:\WINDOWS\system32\wuauclt.exe
E:\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://downloads.phpnuke.org/it/index.php?rvs=google
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://downloads.phpnuke.org/it/index.php?rvs=google
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://downloads.phpnuke.org/it/index.php?rvs=google
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://downloads.phpnuke.org/it/index.php?rvs=google
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: Supporto di collegamento per Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: Skype add-on (mastermind) - {22BF413B-C6D2-4d91-82A9-A0F997BA588C} - C:\Programmi\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: facemoods Helper - {64182481-4F71-486b-A045-B233BD0DA8FC} - C:\Programmi\facemoods.com\facemoods\1.4.17.11\bh\facemoods.dll
O2 - BHO: Guida per l'accesso a Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Programmi\File comuni\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Bing Bar Helper - {d2ce3e00-f94a-4740-988e-03dc2f38c34f} - "C:\Programmi\Microsoft\BingBar\BingExt.dll" (file missing)
O2 - BHO: Ask Toolbar BHO - {D4027C7F-154A-4066-A1AD-4243D8127440} - C:\Programmi\Ask.com\GenericAskToolbar.dll
O3 - Toolbar: Ask Toolbar - {D4027C7F-154A-4066-A1AD-4243D8127440} - C:\Programmi\Ask.com\GenericAskToolbar.dll
O3 - Toolbar: Bing Bar - {8dcb7100-df86-4384-8842-8fa844297b3f} - "C:\Programmi\Microsoft\BingBar\BingExt.dll" (file missing)
O3 - Toolbar: facemoods Toolbar - {DB4E9724-F518-4dfd-9C7C-78B52103CAB9} - C:\Programmi\facemoods.com\facemoods\1.4.17.11\facemoodsTlbr.dll
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [Persistence] C:\WINDOWS\system32\igfxpers.exe
O4 - HKLM\..\Run: [AsusACPIServer] C:\Programmi\EeePC\ACPI\AsAcpiSvr.exe
O4 - HKLM\..\Run: [AsusEPCMonitor] C:\Programmi\EeePC\ACPI\AsEPCMon.exe
O4 - HKLM\..\Run: [AsusTray] C:\Programmi\EeePC\ACPI\AsTray.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [SynAsusAcpi] C:\Programmi\Synaptics\SynTP\SynAsusAcpi.exe
O4 - HKLM\..\Run: [snp2uvc] C:\WINDOWS\vsnp2uvc.exe
O4 - HKLM\..\Run: [LiveUpdate] C:\Programmi\Asus\LiveUpdate\LiveUpdate.exe auto
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [MSC] "C:\Programmi\Microsoft Security Client\msseces.exe" -hide -runkey
O4 - HKLM\..\Run: [facemoods] "C:\Programmi\facemoods.com\facemoods\1.4.17.11\facemoodssrv.exe" /md I
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Eee Docking] C:\Programmi\ASUS\Eee Docking\Eee Docking.exe
O4 - HKCU\..\Run: [msnmsgr] "C:\Programmi\Windows Live\Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [SUPERAntiSpyware] C:\Programmi\SUPERAntiSpyware\SUPERAntiSpyware.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - Startup: Ritaglio schermata e avvio di OneNote 2007.lnk = C:\Programmi\Microsoft Office\Office12\ONENOTEM.EXE
O4 - Startup: Widget vodafone.lnk = C:\Programmi\Widget vodafone.it\Widget vodafone.it.exe
O4 - Global Startup: SuperHybridEngine.lnk = ?
O4 - Global Startup: BTTray.lnk = ?
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~3\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Invia a &Bluetooth - C:\Programmi\WIDCOMM\Software Bluetooth\btsendto_ie_ctx.htm
O8 - Extra context menu item: Invia a Bluetooth - C:\Programmi\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O8 - Extra context menu item: Invia a periferica &Bluetooth... - C:\Programmi\WIDCOMM\Bluetooth Software\btsendto_ie_ctx.htm
O8 - Extra context menu item: Open With JPEGCompress - res://C:\Programmi\JPEGCompress\owjc.dll/CONTEXT_HANDLE.HTM
O9 - Extra button: Inserisci blog - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Programmi\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: Inserisci &blog in Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Programmi\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: Invia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~3\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: I&nvia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~3\Office12\ONBttnIE.dll
O9 - Extra button: (no name) - {5067A26B-1337-4436-8AFE-EE169C2DA79F} - C:\Programmi\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O9 - Extra 'Tools' menuitem: Skype add-on for Internet Explorer - {5067A26B-1337-4436-8AFE-EE169C2DA79F} - C:\Programmi\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O9 - Extra button: Skype - {77BF5300-1474-4EC7-9980-D32B190E9B07} - C:\Programmi\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\Office12\REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FILECO~1\Skype\SKYPE4~1.DLL
O20 - Winlogon Notify: !SASWinLogon - C:\Programmi\SUPERAntiSpyware\SASWINLO.DLL
O22 - SharedTaskScheduler: Precaricatore Browseui - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\system32\browseui.dll
O22 - SharedTaskScheduler: Daemon di cache delle categorie di componenti - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\WINDOWS\system32\browseui.dll
O23 - Service: Bluetooth Service (btwdins) - Broadcom Corporation. - C:\Programmi\WIDCOMM\Software Bluetooth\bin\btwdins.exe
O23 - Service: WTGService - Unknown owner - C:\Programmi\WINDEasyConnect\WTGService.exe

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End of file - 8601 bytes

Scusa shapiro se m'intrometto, l'antivirus c'è si tratta di Microsoft Security Essentials alla riga:
C:\Programmi\Microsoft Security Client\msseces.exe

Probabilmente la pagina si è sostituita durante l'installazione di qualche programma.
Prova a sostituirla manualmente e vedi se cambia di nuovo.

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A parte che quella è una pagina vuota, ti presenta la pagina di google per una ricerca, quindi non vedo
problemi che invece ho visto nel log, quindi fai tutte le operazionbi consigliate da shapiro e vediamo cosa succede. Un consiglio evitare di installare le toolbar quando si caricano dei programmi, creano solo dei problemi e rallentamenti, basta solo quella del motore di ricerca.
Per l'antivirus non sostituirlo quello è uno dei migliori.
Ciao