e questa scritta quì C:\WINDOWS\SYSTEM32\FSERVICE.EXE non esiste...

questa è la mia situazione ora:
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 18:09, on 2008-05-18
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.5730.0013)
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:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\File comuni\LogiShrd\LVMVFM\LVPrcSrv.exe
C:\Programmi\IVT Corporation\BlueSoleil\BTNtService.exe
C:\Programmi\Nero\Nero8\Nero BackItUp\NBService.exe
C:\Programmi\Spyware Terminator\sp_rsser.exe
C:\Programmi\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\Logitech\QuickCam\Quickcam.exe
C:\Programmi\File comuni\LogiShrd\LComMgr\Communications_Helper.exe
C:\Programmi\SPYWAREfighter\spftray.exe
C:\Programmi\Spyware Terminator\SpywareTerminatorShield.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Spybot - Search & Destroy\TeaTimer.exe
C:\WINDOWS\system32\VTTimer.exe
C:\WINDOWS\system32\VTtrayp.exe
C:\Programmi\SPYWAREfighter\spfprc.exe
C:\Programmi\Logitech\Desktop Messenger\8876480\Program\LogitechDesktopMessenger.exe
C:\Programmi\File comuni\Nero\Lib\NMIndexingService.exe
C:\Programmi\File comuni\Logishrd\LQCVFX\COCIManager.exe
C:\WINDOWS\Explorer.exe
C:\Programmi\Mozilla Firefox\firefox.exe
C:\Programmi\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
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 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
R3 - URLSearchHook: Yahoo! Toolbar con blocco Pop-Up - {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: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {1CB20BF0-BBAE-40A7-93F4-6435FF3D0411} - C:\Programmi\Crawler\Toolbar\ctbr.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.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: Windows Live Toolbar Helper - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Programmi\Windows Live Toolbar\msntb.dll
O2 - BHO: PDFCreator Toolbar Helper - {C451C08A-EC37-45DF-AAAD-18B51AB5E837} - C:\Programmi\PDFCreator Toolbar\v3.0.0.0\PDFCreator_Toolbar.dll
O3 - Toolbar: Toolbar &Crawler - {4B3803EA-5230-4DC3-A7FC-33638F3D3542} - C:\Programmi\Crawler\Toolbar\ctbr.dll
O3 - Toolbar: PDFCreator Toolbar - {31CF9EBE-5755-4A1D-AC25-2834D952D9B4} - C:\Programmi\PDFCreator Toolbar\v3.0.0.0\PDFCreator_Toolbar.dll
O3 - Toolbar: Yahoo! Toolbar con blocco Pop-Up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
O3 - Toolbar: Windows Live Toolbar - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Programmi\Windows Live Toolbar\msntb.dll
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Programmi\Adobe\Reader 8.0\Reader\Reader_sl.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: [LogitechQuickCamRibbon] "C:\Programmi\Logitech\QuickCam\Quickcam.exe" /hide
O4 - HKLM\..\Run: [LogitechCommunicationsManager] "C:\Programmi\File comuni\LogiShrd\LComMgr\Communications_Helper.exe"
O4 - HKLM\..\Run: [spywarefighterguard] C:\Programmi\SPYWAREfighter\spftray.exe
O4 - HKLM\..\Run: [SpywareTerminator] "C:\Programmi\Spyware Terminator\SpywareTerminatorShield.exe"
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Adobe Reader Speed Launcher] C:\Programmi\Adobe\Reader 8.0\Reader\Reader_sl.exe
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Programmi\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKCU\..\Run: [bend logo clock film] C:\Documents and Settings\All Users\Dati applicazioni\Frag great bend logo\flaw hope.exe
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Programmi\File comuni\Nero\Lib\NMBgMonitor.exe"
O4 - HKCU\..\Run: [VTTimer] VTTimer.exe
O4 - HKCU\..\Run: [VTTrayp] VTtrayp.exe
O4 - HKCU\..\Run: [eMuleAutoStart] C:\Programmi\eMule\emule.exe -AutoStart
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 - Global Startup: Logitech Desktop Messenger.lnk = C:\Programmi\Logitech\Desktop Messenger\8876480\Program\LogitechDesktopMessenger.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: Aggiungi all'elenco di stampa Easy-WebPrint - res://C:\Programmi\Canon\Easy-WebPrint\Resource.dll/RC_AddToList.html
O8 - Extra context menu item: Anteprima Easy-WebPrint - res://C:\Programmi\Canon\Easy-WebPrint\Resource.dll/RC_Preview.html
O8 - Extra context menu item: Crawler Search - tbr:iemenu
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~4\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Stampa ad alta velocità Easy-WebPrint - res://C:\Programmi\Canon\Easy-WebPrint\Resource.dll/RC_HSPrint.html
O8 - Extra context menu item: Stampa Easy-WebPrint - res://C:\Programmi\Canon\Easy-WebPrint\Resource.dll/RC_Print.html
O9 - Extra button: PokerStars - {3AD14F0C-ED16-4e43-B6D8-661B03F6A1EF} - C:\Programmi\PokerStars\PokerStarsUpdate.exe
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~4\OFFICE11\REFIEBAR.DLL
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: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - http://www.kaspersky.com/kos/eng/partner/default/kavwebscan_unicode.cab
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://acs.pandasoftware.com/activescan/as5free/asinst.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{B01A936D-395A-490E-AF7C-C56EEBABC977}: NameServer = 85.37.17.9 85.38.28.75
O18 - Protocol: bwfile-8876480 - {9462A756-7B47-47BC-8C80-C34B9B80B32B} - C:\Programmi\Logitech\Desktop Messenger\8876480\Program\GAPlugProtocol-8876480.dll
O18 - Protocol: tbr - {4D25FB7A-8902-4291-960E-9ADA051CFBBF} - C:\Programmi\Crawler\Toolbar\ctbr.dll
O23 - Service: BlueSoleil Hid Service - Unknown owner - C:\Programmi\IVT Corporation\BlueSoleil\BTNtService.exe
O23 - Service: LVCOMSer - Logitech Inc. - C:\Programmi\File comuni\LogiShrd\LVCOMSER\LVComSer.exe
O23 - Service: Process Monitor (LVPrcSrv) - Logitech Inc. - C:\Programmi\File comuni\LogiShrd\LVMVFM\LVPrcSrv.exe
O23 - Service: LVSrvLauncher - Logitech Inc. - C:\Programmi\File comuni\LogiShrd\SrvLnch\SrvLnch.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: SPYWAREfighterRP - SpamFighter APS - C:\Programmi\SPYWAREfighter\spfprc.exe
O23 - Service: Spyware Terminator Realtime Shield Service (sp_rssrv) - Crawler.com - C:\Programmi\Spyware Terminator\sp_rsser.exe
O23 - Service: StarWind iSCSI Service (StarWindService) - Rocket Division Software - C:\Programmi\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe

--
End of file - 9267 bytes

AZZZZZZ..........Non ci credo........ma devo crederti perchè il log è pulito
La modalita provvisoria funziona?
Attiva alla svelta l'antivirus (ma ce l'hai?),e metti subito un firewall.
Non restare connesso a internet senza antivirus.

Se non hai un antivirus, Scarica questo:
http://www.aiutaamici.com/software?ID=11537
Se funziona la MOD PROVV, fai una scansione con Virit.
E anche con Norman:
Scarica Norman Malware Cleaner http://download.norman.no/public/Norman_Malware_Cleaner.exe
Norman Malware Cleaner lo si fà girare in MODALITA PROVVISORIA.

Si avvia
si accetta la licenza
si clicca Start Scan
si attende la fine della scansione
Viene generato un log sul desktop, postalo qui.
In alcuni casi Norman Malware Cleaner potrebbe richiedere il riavvio del computer per rimuovere completamente l'infezione, in
questo caso è raccomandata una seconda esecuzione del programma dopo aver riavviato il PC per garantire la completa rimozione di tutti i files infetti.

Non hai le autorizzazioni.
Devi essere l'Amnistratore del pc
Leggi Qui:
http://forum.aiutamici.com/Default.aspx?g=posts&t=49987

Adesso fai tutte le scansioni che ti ho segnalato:
Virit. MOD PROVV.
Norman. MOD PROVV,
Poi IN MODALITA NORMALE ,COMBOFIX.
Prima di fare la scansione con Combofix Disabilita temporaneamente Avast!
Vorrei vedere anche qualche log .

xò resta il problema che all'avvio il pc si riavvia da solo...! si può risolvere???

e come lo posso eliminare questo problema?