Logfile of HijackThis v1.99.1
Scan saved at 11.12.47, on 31/05/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16762)

Running processes:
C:\WINDOWS.0\System32\smss.exe
C:\WINDOWS.0\system32\csrss.exe
C:\WINDOWS.0\system32\winlogon.exe
C:\WINDOWS.0\system32\services.exe
C:\WINDOWS.0\system32\lsass.exe
C:\WINDOWS.0\system32\svchost.exe
C:\WINDOWS.0\system32\svchost.exe
C:\WINDOWS.0\System32\svchost.exe
C:\WINDOWS.0\system32\svchost.exe
C:\WINDOWS.0\system32\svchost.exe
C:\WINDOWS.0\system32\spoolsv.exe
C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
C:\Programmi\Java\jre6\bin\jqs.exe
C:\WINDOWS.0\Explorer.EXE
C:\Programmi\ThreatFire\TFService.exe
C:\PROGRA~1\AVG\AVG8\avgrsx.exe
C:\PROGRA~1\AVG\AVG8\avgnsx.exe
C:\PROGRA~1\AVG\AVG8\avgemc.exe
C:\WINDOWS.0\system32\RunDll32.exe
C:\WINDOWS.0\system32\sistray.EXE
C:\WINDOWS.0\system32\keyhook.exe
C:\PROGRA~1\AVG\AVG8\avgtray.exe
C:\Programmi\HP\hpcoretech\hpcmpmgr.exe
C:\Programmi\Java\jre6\bin\jusched.exe
C:\Programmi\ThreatFire\TFTray.exe
C:\WINDOWS.0\system32\ctfmon.exe
C:\Programmi\AVG\AVG8\avgcsrvx.exe
C:\Programmi\OpenOffice.org 3\program\soffice.exe
C:\Programmi\OpenOffice.org 3\program\soffice.bin
C:\WINDOWS.0\system32\wscntfy.exe
C:\Programmi\HP\hpcoretech\comp\hptskmgr.exe
C:\WINDOWS.0\System32\alg.exe
C:\Programmi\Internet Explorer\iexplore.exe
C:\Programmi\Manutenzione pc\hijackthis_199\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.yahoo.com/search/ie.html
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
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = proxy.libero.it:8080
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: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Programmi\AVG\AVG8\avgssie.dll
O2 - BHO: AVG Security Toolbar - {A057A204-BACC-4D26-9990-79A187E2698E} - C:\Programmi\AVG\AVG8\avgtoolbar.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
O2 - BHO: SingleInstance Class - {FDAD4DA1-61A2-4FD8-9C17-86F7AC245081} - C:\Programmi\Yahoo!\Companion\Installs\cpn\YTSingleInstance.dll
O3 - Toolbar: AVG Security Toolbar - {A057A204-BACC-4D26-9990-79A187E2698E} - C:\Programmi\AVG\AVG8\avgtoolbar.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKLM\..\Run: [SiS Tray] C:\WINDOWS.0\system32\sistray.EXE
O4 - HKLM\..\Run: [SiS Windows KeyHook] C:\WINDOWS.0\system32\keyhook.exe
O4 - HKLM\..\Run: [SiSUSBRG] C:\WINDOWS.0\SiSUSBrg.exe
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS.0\system32\NeroCheck.exe
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Programmi\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [AVG8_TRAY] C:\PROGRA~1\AVG\AVG8\avgtray.exe
O4 - HKLM\..\Run: [HP Component Manager] "C:\Programmi\HP\hpcoretech\hpcmpmgr.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [ThreatFire] C:\Programmi\ThreatFire\TFTray.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS.0\system32\ctfmon.exe
O4 - Startup: OpenOffice.org 3.1.lnk = C:\Programmi\OpenOffice.org 3\program\quickstart.exe
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
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
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {A854AD6D-6DB5-41FB-8044-0BD38092A007} (Ganymede Sudoku) - http://download.gamedesire.com/g_bin/eng/sudoku_2_0_0_15.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O16 - DPF: {E23FABEE-12E3-33DA-DA12-195DAC123984} (GameDesire Mahjong) - http://download.gamedesire.com/g_bin/eng/mahjong_2_0_0_31.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{607EEE21-D143-4B79-ACEC-242FD9484EB5}: NameServer = 193.70.152.15 193.70.152.25
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Programmi\AVG\AVG8\avgpp.dll
O20 - Winlogon Notify: avgrsstarter - C:\WINDOWS.0\SYSTEM32\avgrsstx.dll
O20 - Winlogon Notify: dimsntfy - %SystemRoot%\System32\dimsntfy.dll (file missing)
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS.0\SYSTEM32\WgaLogon.dll
O23 - Service: AVG Free8 E-mail Scanner (avg8emc) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgemc.exe
O23 - Service: AVG Free8 WatchDog (avg8wd) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Unknown owner - C:\Programmi\Java\jre6\bin\jqs.exe" -service -config "C:\Programmi\Java\jre6\lib\deploy\jqs\jqs.conf (file missing)
O23 - Service: ThreatFire - PC Tools - C:\Programmi\ThreatFire\TFService.exe

Ciao.
Aggiorna HJT, hai una versione vecchia.
http://www.aiutaamici.com/software?ID=11175
Poi posta un nuovo log .
Riferisci che problemi riscontri.

riproviamoci,sai mi sto avventurando in un campo nuovo
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 12.51.06, on 31/05/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16762)
Boot mode: Normal

Running processes:
C:\WINDOWS.0\System32\smss.exe
C:\WINDOWS.0\system32\csrss.exe
C:\WINDOWS.0\system32\winlogon.exe
C:\WINDOWS.0\system32\services.exe
C:\WINDOWS.0\system32\lsass.exe
C:\WINDOWS.0\system32\svchost.exe
C:\WINDOWS.0\system32\svchost.exe
C:\WINDOWS.0\System32\svchost.exe
C:\WINDOWS.0\system32\svchost.exe
C:\WINDOWS.0\system32\svchost.exe
C:\WINDOWS.0\system32\spoolsv.exe
C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
C:\Programmi\Java\jre6\bin\jqs.exe
C:\WINDOWS.0\Explorer.EXE
C:\Programmi\ThreatFire\TFService.exe
C:\PROGRA~1\AVG\AVG8\avgrsx.exe
C:\PROGRA~1\AVG\AVG8\avgnsx.exe
C:\PROGRA~1\AVG\AVG8\avgemc.exe
C:\WINDOWS.0\system32\RunDll32.exe
C:\WINDOWS.0\system32\sistray.EXE
C:\WINDOWS.0\system32\keyhook.exe
C:\PROGRA~1\AVG\AVG8\avgtray.exe
C:\Programmi\HP\hpcoretech\hpcmpmgr.exe
C:\Programmi\Java\jre6\bin\jusched.exe
C:\Programmi\ThreatFire\TFTray.exe
C:\WINDOWS.0\system32\ctfmon.exe
C:\Programmi\AVG\AVG8\avgcsrvx.exe
C:\Programmi\OpenOffice.org 3\program\soffice.exe
C:\Programmi\OpenOffice.org 3\program\soffice.bin
C:\WINDOWS.0\system32\wscntfy.exe
C:\Programmi\HP\hpcoretech\comp\hptskmgr.exe
C:\WINDOWS.0\System32\alg.exe
C:\Programmi\Internet Explorer\iexplore.exe
C:\Programmi\Windows Media Player\wmplayer.exe
C:\Programmi\Outlook Express\msimn.exe
C:\Programmi\Manutenzione pc\HijackThis.exe
C:\WINDOWS.0\system32\wbem\wmiprvse.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.yahoo.com/search/ie.html
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
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = proxy.libero.it:8080
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: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Programmi\AVG\AVG8\avgssie.dll
O2 - BHO: AVG Security Toolbar - {A057A204-BACC-4D26-9990-79A187E2698E} - C:\Programmi\AVG\AVG8\avgtoolbar.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
O2 - BHO: SingleInstance Class - {FDAD4DA1-61A2-4FD8-9C17-86F7AC245081} - C:\Programmi\Yahoo!\Companion\Installs\cpn\YTSingleInstance.dll
O3 - Toolbar: AVG Security Toolbar - {A057A204-BACC-4D26-9990-79A187E2698E} - C:\Programmi\AVG\AVG8\avgtoolbar.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKLM\..\Run: [SiS Tray] C:\WINDOWS.0\system32\sistray.EXE
O4 - HKLM\..\Run: [SiS Windows KeyHook] C:\WINDOWS.0\system32\keyhook.exe
O4 - HKLM\..\Run: [SiSUSBRG] C:\WINDOWS.0\SiSUSBrg.exe
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS.0\system32\NeroCheck.exe
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Programmi\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [AVG8_TRAY] C:\PROGRA~1\AVG\AVG8\avgtray.exe
O4 - HKLM\..\Run: [HP Component Manager] "C:\Programmi\HP\hpcoretech\hpcmpmgr.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [ThreatFire] C:\Programmi\ThreatFire\TFTray.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS.0\system32\ctfmon.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS.0\system32\CTFMON.EXE (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS.0\system32\CTFMON.EXE (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS.0\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS.0\system32\CTFMON.EXE (User 'Default user')
O4 - Startup: OpenOffice.org 3.1.lnk = C:\Programmi\OpenOffice.org 3\program\quickstart.exe
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS.0\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS.0\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: {A854AD6D-6DB5-41FB-8044-0BD38092A007} (Ganymede Sudoku) - http://download.gamedesire.com/g_bin/eng/sudoku_2_0_0_15.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O16 - DPF: {E23FABEE-12E3-33DA-DA12-195DAC123984} (GameDesire Mahjong) - http://download.gamedesire.com/g_bin/eng/mahjong_2_0_0_31.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{607EEE21-D143-4B79-ACEC-242FD9484EB5}: NameServer = 193.70.152.15 193.70.152.25
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Programmi\AVG\AVG8\avgpp.dll
O20 - Winlogon Notify: avgrsstarter - C:\WINDOWS.0\SYSTEM32\avgrsstx.dll
O23 - Service: AVG Free8 E-mail Scanner (avg8emc) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgemc.exe
O23 - Service: AVG Free8 WatchDog (avg8wd) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Programmi\Java\jre6\bin\jqs.exe
O23 - Service: ThreatFire - PC Tools - C:\Programmi\ThreatFire\TFService.exe

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End of file - 6636 bytes

ah scusa! da task manager ho notato alcuni processi a me sconosciuti che occupano parecchia memoria
e il rallentamento del pc