Vi chiedo di aiutarmi ad esaminare questa log perchè quando sano connessa ad internet il pc si pianta ... sospetto sia un virus
Grazie

Logfile of HijackThis v1.99.1
Scan saved at 9.59.37, on 26/12/2007
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
C:\WINDOWS\System32\drivers\CDAC11BA.EXE
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\ATK0100\Hcontrol.exe
C:\WINDOWS\AGRSMMSG.exe
C:\Progra~1\ASUS\Power4 Gear\BatteryLife.exe
C:\WINDOWS\System32\sistray.EXE
C:\WINDOWS\System32\khooker.exe
C:\Programmi\Synaptics\SynTP\SynTPLpr.exe
C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
C:\PROGRA~1\Grisoft\AVG7\avgcc.exe
C:\windows\system32\winlogon.exe
C:\WINDOWS\ATK0100\ATKOSD.exe
C:\DOCUME~1\Anna\IMPOST~1\Temp\jsjmia.exe
C:\PROGRA~1\MYWEBS~1\bar\1.bin\mwsoemon.exe
C:\WINDOWS\System32\Offlce.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\WINDOWS\System32\ctfmon.exe
C:\WINDOWS\System32\spool.exe
C:\Programmi\Picasa2\PicasaMediaDetector.exe
C:\Programmi\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\Programmi\MSN Messenger\MsnMsgr.Exe
C:\Programmi\Asus\Asus ChkMail\ChkMail.exe
C:\Programmi\Asus\ASUS Hotkey\Hotkey.exe
C:\Programmi\OpenOffice.org 2.3\program\soffice.exe
C:\Programmi\OpenOffice.org 2.3\program\soffice.BIN
C:\WINDOWS\System32\wuauclt.exe
C:\WINDOWS\System32\wuauclt.exe
C:\hji\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://www.asus.com.tw
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
R3 - URLSearchHook: (no name) - {00A6FAF6-072E-44cf-8957-5838F569A31D} - C:\Programmi\MyWebSearch\SrchAstt\1.bin\MWSSRCAS.DLL
O2 - BHO: MyWebSearch Search Assistant BHO - {00A6FAF1-072E-44cf-8957-5838F569A31D} - C:\Programmi\MyWebSearch\SrchAstt\1.bin\MWSSRCAS.DLL
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: mwsBar BHO - {07B18EA1-A523-4961-B6BB-170DE4475CCA} - C:\Programmi\MyWebSearch\bar\1.bin\MWSBAR.DLL
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Windows Live Sign-in Helper - {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\2.0.301.7164\swg.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar1.dll
O4 - HKLM\..\Run: [Hcontrol] C:\WINDOWS\ATK0100\Hcontrol.exe
O4 - HKLM\..\Run: [AGRSMMSG] AGRSMMSG.exe
O4 - HKLM\..\Run: [Power_Gear] C:\Progra~1\ASUS\Power4 Gear\BatteryLife.exe 1
O4 - HKLM\..\Run: [SiS Tray] C:\WINDOWS\System32\sistray.EXE
O4 - HKLM\..\Run: [SiS KHooker] C:\WINDOWS\System32\khooker.exe
O4 - HKLM\..\Run: [SynTPLpr] C:\Programmi\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVG7\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [LXCFCATS] rundll32 C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\LXCFtime.dll,_RunDLLEntry@16
O4 - HKLM\..\Run: [Java Update] C:\WINDOWS\System32\winampa.exe
O4 - HKLM\..\Run: [hlpjsomc] "c:\windows\system32\hlpjsomc.exe"
O4 - HKLM\..\Run: [jsjmia.exe] C:\DOCUME~1\Anna\IMPOST~1\Temp\jsjmia.exe
O4 - HKLM\..\Run: [OfficeWord Monitors] C:\WINDOWS\System32\Offlce.exe
O4 - HKLM\..\Run: [My Web Search Bar] rundll32 C:\PROGRA~1\MYWEBS~1\bar\1.bin\MWSBAR.DLL,S
O4 - HKLM\..\Run: [MyWebSearch Email Plugin] C:\PROGRA~1\MYWEBS~1\bar\1.bin\mwsoemon.exe
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [Microsoft Update] C:\WINDOWS\System32\spool.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [Picasa Media Detector] C:\Programmi\Picasa2\PicasaMediaDetector.exe
O4 - HKCU\..\Run: [swg] C:\Programmi\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Programmi\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [MyWebSearch Email Plugin] C:\PROGRA~1\MYWEBS~1\bar\1.bin\mwsoemon.exe
O4 - HKCU\..\Run: [OfficeWord Monitors] C:\WINDOWS\System32\Offlce.exe
O4 - HKCU\..\Run: [Microsoft Update] C:\WINDOWS\System32\spool.exe
O4 - Startup: OpenOffice.org 2.3.lnk = C:\Programmi\OpenOffice.org 2.3\program\quickstart.exe
O4 - Startup: MSWin--824976826.exe
O4 - Startup: MSWin-794529800.exe
O4 - Startup: MSWin-305644763.exe
O4 - Global Startup: ASUS ChkMail.lnk = C:\Programmi\Asus\Asus ChkMail\ChkMail.exe
O4 - Global Startup: Hotkey.lnk = C:\Programmi\Asus\ASUS Hotkey\Hotkey.exe
O8 - Extra context menu item: &Search - http://edits.mywebsearch.com/toolbaredits/menusearch.jhtml?p=ZNxdm119YYIT
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\MSMSGS.EXE
O9 - Extra 'Tools' menuitem: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\MSMSGS.EXE
O14 - IERESET.INF: START_PAGE_URL=http://www.asus.com.tw
O16 - DPF: {1D4DB7D2-6EC9-47A3-BD87-1E41684E07BB} - http://ak.exe.imgfarm.com/images/nocache/funwebproducts/ei/SmileyCentralFWBInitialSetup1.0.0.15-3.exe
O16 - DPF: {20A60F0D-9AFA-4515-A0FD-83BD84642501} (Checkers Class) - http://messenger.zone.msn.com/binary/msgrchkr.cab56986.cab
O16 - DPF: {5C051655-FCD5-4969-9182-770EA5AA5565} (Solitaire Showdown Class) - http://messenger.zone.msn.com/binary/SolitaireShowdown.cab56986.cab
O16 - DPF: {5D6F45B3-9043-443D-A792-115447494D24} (UnoCtrl Class) - http://messenger.zone.msn.com/IT-IT/a-UNO1/GAME_UNO1.cab
O16 - DPF: {C3F79A2B-B9B4-4A66-B012-3EE46475B072} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab56907.cab
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
O23 - Service: C-DillaCdaC11BA - C-Dilla Ltd - C:\WINDOWS\System32\drivers\CDAC11BA.EXE
O23 - Service: Explorer - Unknown owner - C:\Programmi\File comuni\System\ati.exe (file missing)
O23 - Service: Google Updater Service (gusvc) - Google - C:\Programmi\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: lxcf_device - - C:\WINDOWS\System32\lxcfcoms.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZONELABS\vsmon.exe

ciao.
per prima cosa ti consiglierei di aggiornare HijackThis,la versione che usi è superata,se vuoi l'ultima versione la trovi qui:
http://www.aiutaamici.com/software?ID=11175.
quando l'hai scaricata,posta il log.
Già che ci sei,non sarebbe male se ti scaricassi IE7(è meglio della versione6)
poi apetta roselli o P2 perchè il tuo pc è infettao di brutto.

Ari...ciao a tutti !!!
Per roselli o P2: "siete rientrati? mi dareste un consiglio ? vorrei formattare solo se è assolutamente indispensabile !"
GRAZIE Fulvia