buonasera a tutti
è da un pò che ho un problemino col pc che ora proverò a descrivere:
ogni volta che lo accendo il pc sembra che si carichi normalmente ma di punto in bianco si spegne....se invece avvio in modalità provvisoria, anche con rete, è un po lentino ma almeno resta acceso!
suppongo sia un virus ma ne Antivir, ne Search&Destroy e neanche Ad-aware rilevano niente( almeno, in modalità provvisoria!)
ho provato anche windows-kb890830-v3.20 ma niente!
naturalmente ho anche usato Hijakthis...ma non è che ci ho capito moltoo

il pc è un TravelMate 4202
processore: intel Core Duo T2300E

Confido in voi per la soluzione alternativa alla "rottamazione"...Grazieee

Ciao, posta il log di HJT nella sezione Sicurezza e virus in modo da esaminarlo.

buongiorno,
ecco il log...
Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 18.33.40, on 18/06/2011
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.17098)
Boot mode: Normal

Running processes:
D:\WINDOWS\System32\smss.exe
D:\WINDOWS\system32\winlogon.exe
D:\WINDOWS\system32\services.exe
D:\WINDOWS\system32\lsass.exe
D:\WINDOWS\system32\svchost.exe
D:\WINDOWS\System32\svchost.exe
D:\Programmi\Lavasoft\Ad-Aware\AAWService.exe
D:\WINDOWS\system32\spoolsv.exe
D:\Programmi\Avira\AntiVir Desktop\sched.exe
D:\WINDOWS\Explorer.EXE
D:\Programmi\Avira\AntiVir Desktop\avguard.exe
D:\WINDOWS\system32\cisvc.exe
D:\WINDOWS\system32\svchost.exe
D:\Programmi\Java\jre6\bin\jqs.exe
D:\WINDOWS\System32\svchost.exe
D:\Programmi\Telecom Italia\WanMiniport1st\srvany.exe
D:\Programmi\Telecom Italia\WanMiniport1st\WanMiniport1st_srv.exe
D:\WINDOWS\System32\svchost.exe
D:\WINDOWS\system32\svchost.exe
D:\WINDOWS\system32\wuauclt.exe
D:\Programmi\acer\Wireless\Utility\WlanUtil.exe
D:\Programmi\Avira\AntiVir Desktop\avgnt.exe
D:\Programmi\File comuni\Java\Java Update\jusched.exe
D:\Programmi\Adobe\Reader 9.0\Reader\Reader_sl.exe
D:\Programmi\File comuni\Adobe\ARM\1.0\AdobeARM.exe
D:\Programmi\HP\HP Software Update\HPWuSchd2.exe
D:\WINDOWS\system32\ctfmon.exe
D:\Programmi\Spybot - Search & Destroy\TeaTimer.exe
D:\Programmi\HP\Digital Imaging\bin\hpqtra08.exe
D:\WINDOWS\system32\taskmgr.exe
D:\Programmi\Trend Micro\HiJackThis\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://search.live.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://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 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://search.live.com/sphome.aspx
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
F2 - REG:system.ini: UserInit=D:\WINDOWS\system32\userinit.exe
O2 - BHO: HP Print Enhancer - {0347C33E-8762-4905-BF09-768834316C61} - D:\Programmi\HP\Digital Imaging\Smart Web Printing\hpswp_printenhancer.dll
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - D:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - D:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - D:\Programmi\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - D:\Programmi\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O2 - BHO: HP Smart BHO Class - {FFFFFFFF-CF4E-4F2B-BDC2-0E72E116A856} - D:\Programmi\HP\Digital Imaging\Smart Web Printing\hpswp_BHO.dll
O4 - HKLM\..\Run: [acerWireless] D:\Programmi\acer\Wireless\Utility\WlanUtil.exe
O4 - HKLM\..\Run: [avgnt] "D:\Programmi\Avira\AntiVir Desktop\avgnt.exe" /min
O4 - HKLM\..\Run: [SunJavaUpdateSched] "D:\Programmi\File comuni\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "D:\Programmi\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [Adobe ARM] "D:\Programmi\File comuni\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [HP Software Update] D:\Programmi\HP\HP Software Update\HPWuSchd2.exe
O4 - HKCU\..\Run: [CTFMON.EXE] D:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [msnmsgr] "D:\Programmi\Windows Live\Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [SpybotSD TeaTimer] D:\Programmi\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKCU\..\Run: [Google Update] "D:\Documents and Settings\kikko\Impostazioni locali\Dati applicazioni\Google\Update\GoogleUpdate.exe" /c
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] D:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] D:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] D:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] D:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - Startup: OpenOffice.org 3.2.lnk = D:\Programmi\OpenOffice.org 3\program\quickstart.exe
O4 - Global Startup: HP Digital Imaging Monitor.lnk = D:\Programmi\HP\Digital Imaging\bin\hpqtra08.exe
O8 - Extra context menu item: Google Sidewiki... - res://D:\Programmi\Google\Google Toolbar\Component\GoogleToolbarDynamic_mui_en_D183CA64F05FDD98.dll/cmsidewiki.html
O9 - Extra button: Selezione intelligente HP - {DDE87865-83C5-48c4-8357-2F5B1AA84522} - D:\Programmi\HP\Digital Imaging\Smart Web Printing\hpswp_BHO.dll
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - D:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - D:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - D:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - D:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - D:\Programmi\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - D:\Programmi\Messenger\msmsgs.exe
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O22 - SharedTaskScheduler: Precaricatore Browseui - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - D:\WINDOWS\system32\browseui.dll
O22 - SharedTaskScheduler: Daemon di cache delle categorie di componenti - {8C7461EF-2B13-11d2-BE35-3078302C2030} - D:\WINDOWS\system32\browseui.dll
O23 - Service: Avira AntiVir Scheduler (AntiVirScheduler) - Avira GmbH - D:\Programmi\Avira\AntiVir Desktop\sched.exe
O23 - Service: Avira AntiVir Guard (AntiVirService) - Avira GmbH - D:\Programmi\Avira\AntiVir Desktop\avguard.exe
O23 - Service: Servizio di Google Update (gupdate) (gupdate) - Unknown owner - D:\Programmi\Google\Update\GoogleUpdate.exe (file missing)
O23 - Service: Servizio Google Update (gupdatem) (gupdatem) - Unknown owner - D:\Programmi\Google\Update\GoogleUpdate.exe (file missing)
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - D:\Programmi\Java\jre6\bin\jqs.exe
O23 - Service: Lavasoft Ad-Aware Service - Lavasoft Limited - D:\Programmi\Lavasoft\Ad-Aware\AAWService.exe
O23 - Service: Network WanMiniport First Position - Unknown owner - D:\Programmi\Telecom Italia\WanMiniport1st\srvany.exe

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End of file - 7012 bytes

a parte i soliti programmi per provare a scovare il virus b.... non mi sembra di aver istallato niente....