Ciao a tutti,
da qualche giorno sto combattendo con un attacco al mio pc che non riesco proprio a debellare. Il mio antivirus (F-Secure) mi segnala la presenza di Rootkit.Win32.Podnuha.blc nella cartella Windows\system32 e non è in grado di rimuoverlo.
Io, pur non essendo esperto, ho letto su una rivista specializzata qualche indicazione ed allora ho scaricato virIT facendo la scansione del pc in modalità provvisoria. L'antivirus mi ha segnalato un virus identificandolo come variante di Backdoor.SdBot.KR, lo strano è che lo localizza proprio in un file di F-Secure e cioè Programmi\F-Secure\Anti-virus\fsbl.dll.
A questo punto ho fatto la scansione con Hijack (come ho letto su questo forum) e lo invio chiedendo un aiuto per risolvere questo problema (non essendo un esperto spero di aver esposto il problema in maniera sufficientemente chiara).

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 23.52.14, on 01/01/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
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:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\CyberLink\PowerDVD\PDVDServ.exe
C:\WINDOWS\RTHDCPL.EXE
C:\Programmi\HP\HP Software Update\HPWuSchd.exe
C:\Programmi\HP\hpcoretech\hpcmpmgr.exe
C:\Programmi\F-Secure\Common\FSM32.EXE
C:\Programmi\ATI Technologies\ATI.ACE\CLI.EXE
C:\VEXPLITE\MONLITE.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Creative\Sync Manager Unicode\CTSyncU.exe
C:\Programmi\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\Programmi\Bonjour\mDNSResponder.exe
C:\Programmi\Windows Live\Messenger\MsnMsgr.Exe
C:\WINDOWS\system32\CTsvcCDA.exe
C:\Programmi\HP\Digital Imaging\bin\hpqtra08.exe
C:\Programmi\F-Secure\Anti-Virus\fsgk32st.exe
C:\Programmi\Webshots\WebshotsTray.exe
C:\Programmi\F-Secure\Anti-Virus\FSGK32.EXE
C:\Programmi\F-Secure\Common\FSMA32.EXE
C:\Programmi\F-Secure\Common\FSMB32.EXE
C:\Programmi\F-Secure\Common\FCH32.EXE
C:\Programmi\Nero\Nero8\Nero BackItUp\NBService.exe
C:\Programmi\F-Secure\Anti-Virus\fsqh.exe
C:\Programmi\F-Secure\Common\FAMEH32.EXE
C:\Programmi\Photodex\ProShowGold\ScsiAccess.exe
C:\WINDOWS\system32\svchost.exe
C:\VEXPLITE\viritsvc.exe
C:\Programmi\F-Secure\Common\FNRB32.EXE
C:\Programmi\F-Secure\Anti-Virus\fssm32.exe
C:\Programmi\F-Secure\FSAUA\program\fsaua.exe
C:\Programmi\F-Secure\Common\FIH32.EXE
C:\WINDOWS\system32\HPZipm12.exe
C:\Programmi\ATI Technologies\ATI.ACE\cli.exe
C:\Programmi\ATI Technologies\ATI.ACE\cli.exe
C:\Programmi\F-Secure\Anti-Virus\fsav32.exe
C:\Programmi\F-Secure\FSGUI\fsguidll.exe
C:\Programmi\Internet Explorer\iexplore.exe
C:\Programmi\File comuni\Microsoft Shared\Windows Live\WLLoginProxy.exe
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\HPZENG09.exe
C:\Programmi\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://google.it/
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://www.google.it/
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: &Yahoo! Toolbar Helper - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
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: (no name) - {4066C242-1DC0-46E5-A32D-E73FCB62CDC6} - C:\WINDOWS\system32\comctl3.dll
O2 - BHO: Windows Live OneCare Family Safety Browser Helper - {4f3ed5cd-0726-42a9-87f5-d13f3d2976ac} - C:\Programmi\Windows Live\Family Safety\fssbho.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
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: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programmi\google\googletoolbar1.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Programmi\Google\GoogleToolbarNotifier\3.1.807.1746\swg.dll
O2 - BHO: Windows Live Toolbar Helper - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Programmi\Windows Live Toolbar\msntb.dll
O2 - BHO: SingleInstance Class - {FDAD4DA1-61A2-4FD8-9C17-86F7AC245081} - C:\Programmi\Yahoo!\Companion\Installs\cpn\YTSingleInstance.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar1.dll
O3 - Toolbar: Windows Live Toolbar - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Programmi\Windows Live Toolbar\msntb.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [SkyTel] SkyTel.EXE
O4 - HKLM\..\Run: [RemoteControl] C:\Programmi\CyberLink\PowerDVD\PDVDServ.exe
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
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: [NeroFilterCheck] C:\Programmi\File comuni\Nero\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [NBKeyScan] "C:\Programmi\Nero\Nero8\Nero BackItUp\NBKeyScan.exe"
O4 - HKLM\..\Run: [HP Software Update] "C:\Programmi\HP\HP Software Update\HPWuSchd.exe"
O4 - HKLM\..\Run: [HP Component Manager] "C:\Programmi\HP\hpcoretech\hpcmpmgr.exe"
O4 - HKLM\..\Run: [DXDllRegExe] dxdllreg.exe
O4 - HKLM\..\Run: [ATICCC] "C:\Programmi\ATI Technologies\ATI.ACE\CLIStart.exe"
O4 - HKLM\..\Run: [F-Secure Manager] "C:\Programmi\F-Secure\Common\FSM32.EXE" /splash
O4 - HKLM\..\Run: [F-Secure TNB] "C:\Programmi\F-Secure\FSGUI\TNBUtil.exe" /CHECKALL /WAITFORSW
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Programmi\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [VIRIT LITE MONITOR] C:\VEXPLITE\MONLITE.EXE
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [CTSyncU.exe] "C:\Programmi\Creative\Sync Manager Unicode\CTSyncU.exe"
O4 - HKCU\..\Run: [swg] C:\Programmi\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Programmi\Windows Live\Messenger\MsnMsgr.Exe" /background
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 - S-1-5-18 Startup: Webshots.lnk = C:\Programmi\Webshots\WebshotsTray.exe (User 'SYSTEM')
O4 - .DEFAULT Startup: Webshots.lnk = C:\Programmi\Webshots\WebshotsTray.exe (User 'Default user')
O4 - Startup: Webshots.lnk = C:\Programmi\Webshots\WebshotsTray.exe
O4 - Global Startup: Corel Family & Friends Reminders.LNK = C:\Programmi\Corel\Print House Magic\cffrem.exe
O4 - Global Startup: HP Digital Imaging Monitor.lnk = C:\Programmi\HP\Digital Imaging\bin\hpqtra08.exe
O4 - Global Startup: MS-0812-upd221006.exe
O8 - Extra context menu item: &Windows Live Search - res://C:\Programmi\Windows Live Toolbar\msntb.dll/search.htm
O8 - Extra context menu item: Add to Windows &Live Favorites - http://favorites.live.com/quickadd.aspx
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
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: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O9 - Extra button: Organizzatore ricerche - {9455301C-CF6B-11D3-A266-00C04F689C50} - C:\Programmi\File comuni\Microsoft Shared\Encarta Researcher\EROPROJ.DLL
O9 - Extra button: (no name) - {B205A35E-1FC4-4CE3-818B-899DBBB3388C} - C:\Programmi\File comuni\Microsoft Shared\Encarta Search Bar\ENCSBAR.DLL
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: {0CCA191D-13A6-4E29-B746-314DEE697D83} (Facebook Photo Uploader 5 Control) - http://upload.facebook.com/controls/2008.10.10_v5.5.8/FacebookPhotoUploader5.cab
O16 - DPF: {56762DEC-6B0D-4AB4-A8AD-989993B5D08B} (OnlineScanner Control) - http://www.eset.eu/buxus/docs/OnlineScanner.cab
O16 - DPF: {7FC1B346-83E6-4774-8D20-1A6B09B0E737} (Windows Live Photo Upload Control) - http://cid-121b8d4dce447099.spaces.live.com/PhotoUpload/MsnPUpld.cab
O16 - DPF: {BDBDE413-7B1C-4C68-A8FF-C5B2B4090876} (F-Secure Online Scanner 3.3) - http://support.f-secure.com/ols/fscax.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{BDACA065-0C04-4A81-B092-5E3C8DC16DB0}: NameServer = 212.216.172.222,151.99.125.2
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: ##Id_String1.6844F930_1628_4223_B5CC_5BB94B879762## (Bonjour Service) - Apple Computer, Inc. - C:\Programmi\Bonjour\mDNSResponder.exe
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\system32\CTsvcCDA.exe
O23 - Service: FSGKHS (F-Secure Gatekeeper Handler Starter) - F-Secure Corporation - C:\Programmi\F-Secure\Anti-Virus\fsgk32st.exe
O23 - Service: F-Secure Network Request Broker - F-Secure Corporation - C:\Programmi\F-Secure\Common\FNRB32.EXE
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Programmi\File comuni\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: F-Secure Automatic Update Agent (FSAUA) - F-Secure Corporation - C:\Programmi\F-Secure\FSAUA\program\fsaua.exe
O23 - Service: F-Secure Management Agent (FSMA) - F-Secure Corporation - C:\Programmi\F-Secure\Common\FSMA32.EXE
O23 - Service: Google Updater Service (gusvc) - Google - C:\Programmi\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programmi\File comuni\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: LEC TranslateDotNet Server - Language Engineering Corporation, LLC - C:\Programmi\Power Translator\LogoMedia TranslateDotNet Server.exe
O23 - Service: Nero BackItUp Scheduler 3 - Nero AG - C:\Programmi\Nero\Nero8\Nero BackItUp\NBService.exe
O23 - Service: NMIndexingService - Nero AG - C:\Programmi\File comuni\Nero\Lib\NMIndexingService.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe
O23 - Service: ScsiAccess - Unknown owner - C:\Programmi\Photodex\ProShowGold\ScsiAccess.exe
O23 - Service: Virit eXplorer Lite (viritsvclite) - TG Soft Sas www.tgsoft.it - C:\VEXPLITE\viritsvc.exe

--
End of file - 10935 bytes

analizza con virus total questo evidenziato in rosso

C:\WINDOWS\system32\comctl3.dll

http://www.virustotal.com/it/


apri hijackthis, premi "do a system scan only", cerca e spunta le voci seguenti:

O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)

O2 - BHO: SingleInstance Class - {FDAD4DA1-61A2-4FD8-9C17-86F7AC245081} - C:\Programmi\Yahoo!\Companion\Installs\cpn\YTSingleInstance.dll

O4 - Global Startup: MS-0812-upd221006.exe


premi fix checked.




scarica Malwarebytes http://www.malwarebytes.org/mbam/program/mbam-setup.exe
1) lo installi
2) lo aggiorni
3) fai una scansione scegliendo la modalità completa
4) NON eliminare per ora le ventuali minacce che rileva
5) finita la scansione seleziona il tabellino log, apri il file di testo e postalo sul forum

il programma malwarebytes che ti ha consigliato shapiro scaricalo e tienilo sul pc perche' ti aiutera' a risolvere eventuali problemi futuri.

Ho già tentato più volte di inviare il file comctl3.dll a virus total per la scanzione, ma la risposta che ricevo è sempre la stessa "0 bytes received"

Sono riuscito ad inviare il file, il risultato è questo :

comctl3.dll uploaded on 2009-01-02 07:18:35 PM UTC
Scan Completed in 5.594 secs.


Engine Name ScanTime Definition Date Result
AVG scan engine 16ms 2009-01-01 17:01:00 -
ClamAV 31ms 2009-01-01 06:56:46 -
Eset scanning engine 1ms 2009-01-01 00:00:00 -
eTrust Engine 1ms 2009-01-01 00:00:00 -
McAfee VirusScan Enterprise 5515ms 2009-01-01 00:00:00 -
Microworld (Kaspersky) Scan engine 0ms 2008-12-30 00:00:00 -
Norman Scan Engine 1ms 2009-01-01 00:11:00 -
VirusBuster EDK 1ms 2008-12-05 05:33:28 -
Final Result NO VIRUSES DETECTED



File Information
Detected Possible File Types: empty
MD5: d41d8cd98f00b204e9800998ecf8427e
SHA1: da39a3ee5e6b4b0d3255bfef95601890afd80709
File Size: 0 bytes

Report a problem ©OPSWAT, Inc. 2002-2008

Riporto di seguito il log aggiornato, se ho capito bene devo provare ancora ad inviare il file comctl3.dll a virus total per l'analisi ?

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 21.40.54, on 02/01/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
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:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\CyberLink\PowerDVD\PDVDServ.exe
C:\WINDOWS\RTHDCPL.EXE
C:\Programmi\HP\HP Software Update\HPWuSchd.exe
C:\Programmi\HP\hpcoretech\hpcmpmgr.exe
C:\Programmi\F-Secure\Common\FSM32.EXE
C:\Programmi\ATI Technologies\ATI.ACE\CLI.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Bonjour\mDNSResponder.exe
C:\Programmi\Creative\Sync Manager Unicode\CTSyncU.exe
C:\Programmi\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\WINDOWS\system32\CTsvcCDA.exe
C:\Programmi\Windows Live\Messenger\MsnMsgr.Exe
C:\Programmi\F-Secure\Anti-Virus\fsgk32st.exe
C:\Programmi\F-Secure\Anti-Virus\FSGK32.EXE
C:\Programmi\F-Secure\Common\FSMA32.EXE
C:\Programmi\F-Secure\Common\FSMB32.EXE
C:\Programmi\F-Secure\Common\FCH32.EXE
C:\Programmi\Nero\Nero8\Nero BackItUp\NBService.exe
C:\Programmi\HP\Digital Imaging\bin\hpqtra08.exe
C:\Programmi\Webshots\WebshotsTray.exe
C:\Programmi\F-Secure\Anti-Virus\fsqh.exe
C:\Programmi\F-Secure\Common\FAMEH32.EXE
C:\Programmi\Photodex\ProShowGold\ScsiAccess.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\F-Secure\Common\FNRB32.EXE
C:\Programmi\F-Secure\Anti-Virus\fssm32.exe
C:\Programmi\F-Secure\Common\FIH32.EXE
C:\Programmi\F-Secure\FSAUA\program\fsaua.exe
C:\WINDOWS\system32\HPZipm12.exe
C:\Programmi\ATI Technologies\ATI.ACE\cli.exe
C:\Programmi\ATI Technologies\ATI.ACE\cli.exe
C:\Programmi\Windows Live\Messenger\usnsvc.exe
C:\Programmi\F-Secure\Anti-Virus\fsav32.exe
C:\Programmi\F-Secure\FSGUI\fsguidll.exe
C:\WINDOWS\system32\igfxsrvc.exe
C:\Programmi\File comuni\Microsoft Shared\Windows Live\WLLoginProxy.exe
C:\Programmi\Internet Explorer\iexplore.exe
C:\Programmi\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://google.it/
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://www.google.it/
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - (no file)
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: (no name) - {4066C242-1DC0-46E5-A32D-E73FCB62CDC6} - C:\WINDOWS\system32\comctl3.dll
O2 - BHO: Windows Live OneCare Family Safety Browser Helper - {4f3ed5cd-0726-42a9-87f5-d13f3d2976ac} - C:\Programmi\Windows Live\Family Safety\fssbho.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
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: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programmi\google\googletoolbar1.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Programmi\Google\GoogleToolbarNotifier\3.1.807.1746\swg.dll
O2 - BHO: Windows Live Toolbar Helper - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Programmi\Windows Live Toolbar\msntb.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar1.dll
O3 - Toolbar: Windows Live Toolbar - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Programmi\Windows Live Toolbar\msntb.dll
O4 - HKLM\..\Run: [SkyTel] SkyTel.EXE
O4 - HKLM\..\Run: [RemoteControl] C:\Programmi\CyberLink\PowerDVD\PDVDServ.exe
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
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: [NeroFilterCheck] C:\Programmi\File comuni\Nero\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [NBKeyScan] "C:\Programmi\Nero\Nero8\Nero BackItUp\NBKeyScan.exe"
O4 - HKLM\..\Run: [HP Software Update] "C:\Programmi\HP\HP Software Update\HPWuSchd.exe"
O4 - HKLM\..\Run: [HP Component Manager] "C:\Programmi\HP\hpcoretech\hpcmpmgr.exe"
O4 - HKLM\..\Run: [DXDllRegExe] dxdllreg.exe
O4 - HKLM\..\Run: [ATICCC] "C:\Programmi\ATI Technologies\ATI.ACE\CLIStart.exe"
O4 - HKLM\..\Run: [F-Secure Manager] "C:\Programmi\F-Secure\Common\FSM32.EXE" /splash
O4 - HKLM\..\Run: [F-Secure TNB] "C:\Programmi\F-Secure\FSGUI\TNBUtil.exe" /CHECKALL /WAITFORSW
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Programmi\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [CTSyncU.exe] "C:\Programmi\Creative\Sync Manager Unicode\CTSyncU.exe"
O4 - HKCU\..\Run: [swg] C:\Programmi\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Programmi\Windows Live\Messenger\MsnMsgr.Exe" /background
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 - S-1-5-18 Startup: Webshots.lnk = C:\Programmi\Webshots\WebshotsTray.exe (User 'SYSTEM')
O4 - .DEFAULT Startup: Webshots.lnk = C:\Programmi\Webshots\WebshotsTray.exe (User 'Default user')
O4 - Startup: Webshots.lnk = C:\Programmi\Webshots\WebshotsTray.exe
O4 - Global Startup: Corel Family & Friends Reminders.LNK = C:\Programmi\Corel\Print House Magic\cffrem.exe
O4 - Global Startup: HP Digital Imaging Monitor.lnk = C:\Programmi\HP\Digital Imaging\bin\hpqtra08.exe
O4 - Global Startup: MS-0812-upd221006.exe
O8 - Extra context menu item: &Windows Live Search - res://C:\Programmi\Windows Live Toolbar\msntb.dll/search.htm
O8 - Extra context menu item: Add to Windows &Live Favorites - http://favorites.live.com/quickadd.aspx
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
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: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O9 - Extra button: Organizzatore ricerche - {9455301C-CF6B-11D3-A266-00C04F689C50} - C:\Programmi\File comuni\Microsoft Shared\Encarta Researcher\EROPROJ.DLL
O9 - Extra button: (no name) - {B205A35E-1FC4-4CE3-818B-899DBBB3388C} - C:\Programmi\File comuni\Microsoft Shared\Encarta Search Bar\ENCSBAR.DLL
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: {0CCA191D-13A6-4E29-B746-314DEE697D83} (Facebook Photo Uploader 5 Control) - http://upload.facebook.com/controls/2008.10.10_v5.5.8/FacebookPhotoUploader5.cab
O16 - DPF: {56762DEC-6B0D-4AB4-A8AD-989993B5D08B} - http://www.eset.eu/buxus/docs/OnlineScanner.cab
O16 - DPF: {7FC1B346-83E6-4774-8D20-1A6B09B0E737} (Windows Live Photo Upload Control) - http://cid-121b8d4dce447099.spaces.live.com/PhotoUpload/MsnPUpld.cab
O16 - DPF: {BDBDE413-7B1C-4C68-A8FF-C5B2B4090876} (F-Secure Online Scanner 3.3) - http://support.f-secure.com/ols/fscax.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{BDACA065-0C04-4A81-B092-5E3C8DC16DB0}: NameServer = 212.216.172.222,151.99.125.2
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: ##Id_String1.6844F930_1628_4223_B5CC_5BB94B879762## (Bonjour Service) - Apple Computer, Inc. - C:\Programmi\Bonjour\mDNSResponder.exe
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\system32\CTsvcCDA.exe
O23 - Service: FSGKHS (F-Secure Gatekeeper Handler Starter) - F-Secure Corporation - C:\Programmi\F-Secure\Anti-Virus\fsgk32st.exe
O23 - Service: F-Secure Network Request Broker - F-Secure Corporation - C:\Programmi\F-Secure\Common\FNRB32.EXE
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Programmi\File comuni\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: F-Secure Automatic Update Agent (FSAUA) - F-Secure Corporation - C:\Programmi\F-Secure\FSAUA\program\fsaua.exe
O23 - Service: F-Secure Management Agent (FSMA) - F-Secure Corporation - C:\Programmi\F-Secure\Common\FSMA32.EXE
O23 - Service: Google Updater Service (gusvc) - Google - C:\Programmi\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programmi\File comuni\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: LEC TranslateDotNet Server - Language Engineering Corporation, LLC - C:\Programmi\Power Translator\LogoMedia TranslateDotNet Server.exe
O23 - Service: Nero BackItUp Scheduler 3 - Nero AG - C:\Programmi\Nero\Nero8\Nero BackItUp\NBService.exe
O23 - Service: NMIndexingService - Nero AG - C:\Programmi\File comuni\Nero\Lib\NMIndexingService.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe
O23 - Service: ScsiAccess - Unknown owner - C:\Programmi\Photodex\ProShowGold\ScsiAccess.exe

--
End of file - 10269 bytes

Ho fatto come mi hai detto, ma il risultato non cambia, virus total mi da la stessa risposta.
Volevo anche dirti che quando apro una finestra (es. quella per selezionare il file) appare la segnalazione di F-Secure che indica il Rootkit.Win32.Podnuha.blc, così come aprendo esplora risorse o cliccando su collegamento di internet.

segui il percorso di questa chiave

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControl

quando sei su CurrentControl un solo click e dimmi se nel frame a destra hai due voci Upperfilters e Lowerfilters


fatto questo visualizza i file nascosti

Tasto destro su Start--Esplora--Menù Strumenti--Opzioni Cartella--Visualizzazione
-Mettere la spunta a 'Visualizza tutti i files' o "Visualizza cartelle e files nascosti"
-Togliere la spunta a 'Non visualizzare cartelle e files di sistema' o "Nascondi i files protetti di sistema"




vai nella cartella system 32 e vedi se trovi il rootkit Podnuha.blc


capisco che e' impossibile visualizzare un rootkit, ma vorrei che tu lo facessi prima di usare gmer

???

ho detto solamente di controllare

Scusami ma come ti dicevo non sono pratico, cosa devo fare esattamente per fare ciò che mi chiedi ? (cioè seguire il percorso HKEY_LOCAL ecc...)