Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 14.43.36, on 23/09/2010
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\COMODO\COMODO Internet Security\cmdagent.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\Windows Defender\MsMpEng.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\Avira\AntiVir Desktop\sched.exe
C:\Programmi\Avira\AntiVir Desktop\avgnt.exe
C:\WINDOWS\system32\Rundll32.exe
C:\Programmi\COMODO\COMODO Internet Security\cfp.exe
C:\WINDOWS\Samsung\PanelMgr\SSMMgr.exe
C:\Programmi\Logitech\Gaming Software\LWEMon.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Avira\AntiVir Desktop\avguard.exe
C:\Programmi\File comuni\LightScribe\LSSrvc.exe
C:\Programmi\File comuni\Nero\Nero BackItUp 4\NBService.exe
C:\Programmi\Telecom Italia\WanMiniport1st\srvany.exe
C:\Programmi\Nitro PDF\Reader\NitroPDFReaderDriverService.exe
C:\Programmi\Telecom Italia\WanMiniport1st\WanMiniport1st_srv.exe
C:\Programmi\CDBurnerXP\NMSAccessU.exe
C:\Programmi\TuneUp Utilities 2010\TuneUpUtilitiesService32.exe
C:\Programmi\Avira\AntiVir Desktop\avmailc.exe
C:\Programmi\Avira\AntiVir Desktop\AVWEBGRD.EXE
C:\Programmi\TuneUp Utilities 2010\TuneUpUtilitiesApp32.exe
C:\Programmi\Avira\AntiVir Desktop\avscan.exe
C:\Programmi\Mozilla Firefox\firefox.exe
C:\WINDOWS\system32\msiexec.exe
C:\Programmi\Trend Micro\HiJackThis\HiJackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.it/
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/?LinkId=69157
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 = 127.0.0.1
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Programmi\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Programmi\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O4 - HKLM\..\Run: [avgnt] "C:\Programmi\Avira\AntiVir Desktop\avgnt.exe" /min
O4 - HKLM\..\Run: [P17Helper] Rundll32 SPIRun.dll,RunDLLEntry
O4 - HKLM\..\Run: [COMODO Internet Security] "C:\Programmi\COMODO\COMODO Internet Security\cfp.exe" -h
O4 - HKLM\..\Run: [Samsung PanelMgr] C:\WINDOWS\Samsung\PanelMgr\SSMMgr.exe /autorun
O4 - HKLM\..\Run: [Start WingMan Profiler] C:\Programmi\Logitech\Gaming Software\LWEMon.exe /noui
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.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
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1257096973796
O16 - DPF: {6C269571-C6D7-4818-BCA4-32A035E8C884} (Creative Software AutoUpdate) - http://ccfiles.creative.com/Web/softwareupdate/su/ocx/15101/CTSUEng.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O16 - DPF: {F6ACF75C-C32C-447B-9BEF-46B766368D29} (Creative Software AutoUpdate Support Package) - http://ccfiles.creative.com/Web/softwareupdate/su/ocx/15112/CTPID.cab
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: Avira AntiVir MailGuard (AntiVirMailService) - Avira GmbH - C:\Programmi\Avira\AntiVir Desktop\avmailc.exe
O23 - Service: Avira AntiVir Scheduler (AntiVirSchedulerService) - Avira GmbH - C:\Programmi\Avira\AntiVir Desktop\sched.exe
O23 - Service: Avira AntiVir Guard (AntiVirService) - Avira GmbH - C:\Programmi\Avira\AntiVir Desktop\avguard.exe
O23 - Service: Avira AntiVir WebGuard (AntiVirWebService) - Avira GmbH - C:\Programmi\Avira\AntiVir Desktop\AVWEBGRD.EXE
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: COMODO Internet Security Helper Service (cmdAgent) - COMODO - C:\Programmi\COMODO\COMODO Internet Security\cmdagent.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programmi\File comuni\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Programmi\Java\jre6\bin\jqs.exe
O23 - Service: Logitech Bluetooth Service (LBTServ) - Logitech, Inc. - C:\Programmi\File comuni\Logishrd\Bluetooth\LBTServ.exe
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Programmi\File comuni\LightScribe\LSSrvc.exe
O23 - Service: Nero BackItUp Scheduler 4.0 - Nero AG - C:\Programmi\File comuni\Nero\Nero BackItUp 4\NBService.exe
O23 - Service: Network WanMiniport First Position - Unknown owner - C:\Programmi\Telecom Italia\WanMiniport1st\srvany.exe
O23 - Service: NitroPDFReaderDriverCreatorReadSpool (NitroReaderDriverReadSpool) - Nitro PDF Software - C:\Programmi\Nitro PDF\Reader\NitroPDFReaderDriverService.exe
O23 - Service: NMSAccess - Unknown owner - C:\Programmi\CDBurnerXP\NMSAccessU.exe
O23 - Service: TuneUp Drive Defrag Service (TuneUp.Defrag) - TuneUp Software - C:\Programmi\TuneUp Utilities 2010\TuneUpDefragService.exe
O23 - Service: TuneUp Utilities Service (TuneUp.UtilitiesSvc) - TuneUp Software - C:\Programmi\TuneUp Utilities 2010\TuneUpUtilitiesService32.exe

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End of file - 7420 bytes

Il log mi sembra pulito

fai una scansione completa con l'antivirus e una scansione completa con Malwarebytes

http://software.aiutamici.com/software?ID=80346

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alfonso_aiutamici@hotmail.it

Scusate se mi intrometto.
@Alfonso: Questa voce non mi convince tanto:
O4 - HKLM\..\Run: [P17Helper] Rundll32 SPIRun.dll,RunDLLEntry