My system is in a bad way and keeps shutting down after a popup saying" LSA Shell (Export Version) has encountered a problem and needs to close. We are sorry for the inconvenience." please help.

Logfile of HijackThis v1.99.0
Scan saved at 22:58:21, on 10/01/2005
Platform: Windows XP (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)

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\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\Norton Internet Security\Norton AntiVirus\navapsvc.exe
C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\Program Files\ahead\InCD\InCD.exe
C:\PROGRA~1\COMMON~1\PCSuite\DATALA~1\DATALA~1.EXE
C:\PROGRA~1\Nokia\NOKIAP~1\TRAYAP~1.EXE
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Program Files\Java\jre1.5.0\bin\jusched.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\WINDOWS\System32\winexec32.exe
C:\WINDOWS\system32\defragfatz.exe
C:\Program Files\Spybot - Search & Destroy\SpybotSD.exe
C:\WINDOWS\System32\lsass2k.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\FinePixViewer\QuickDCF.exe
C:\Program Files\Intuit\QuickBooks\Components\QBAgent\qbdagen t2001.exe
C:\PROGRA~1\COMMON~1\PCSuite\Services\SERVIC~1.EXE
C:\WINDOWS\System32\mrtMngr.EXE
C:\Documents and Settings\Admin\Desktop\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.co.uk/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Rod
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [InCD] C:\Program Files\ahead\InCD\InCD.exe
O4 - HKLM\..\Run: [SoundMan] soundman.exe
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [DataLayer] C:\PROGRA~1\COMMON~1\PCSuite\DATALA~1\DATALA~1.EXE
O4 - HKLM\..\Run: [PCSuiteTrayApplication] C:\PROGRA~1\Nokia\NOKIAP~1\TRAYAP~1.EXE
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe
O4 - HKLM\..\Run: [REGSHAVE] C:\Program Files\REGSHAVE\REGSHAVE.EXE /AUTORUN
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\jre1.5.0\bin\jusched.exe
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [Microsoft NT Update] winexec32.exe
O4 - HKLM\..\Run: [Windows DLL Loader] C:\WINDOWS\system32\defragfatz.exe
O4 - HKLM\..\Run: [lsass2k Update] lsass2k.exe
O4 - HKLM\..\RunServices: [Microsoft NT Update] winexec32.exe
O4 - HKLM\..\RunServices: [lsass2k Update] lsass2k.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe
O4 - HKCU\..\Run: [Microsoft NT Update] winexec32.exe
O4 - HKCU\..\Run: [lsass2k Update] lsass2k.exe
O4 - Global Startup: Exif Launcher.lnk = ?
O4 - Global Startup: QuickBooks 2001 Delivery Agent.lnk = C:\Program Files\Intuit\QuickBooks\Components\QBAgent\qbdagen t2001.exe
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0\bin\npjpi150.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0\bin\npjpi150.dll
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?link...38&clcid=0x409
O23 - Service: AVG7 Alert Manager Server - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: Symantec Event Manager - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Network Proxy - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccProxy.exe
O23 - Service: Symantec Password Validation - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Settings Manager - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
O23 - Service: Norton AntiVirus Auto Protect Service - Symantec Corporation - C:\Program Files\Norton Internet Security\Norton AntiVirus\navapsvc.exe
O23 - Service: SAVScan - Symantec Corporation - C:\Program Files\Norton Internet Security\Norton AntiVirus\SAVScan.exe
O23 - Service: ScriptBlocking Service - Symantec Corporation - C:\PROGRA~1\COMMON~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: Symantec Network Drivers Service - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec Core LC - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
O23 - Service: SymWMI Service - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\Security Center\SymWSC.exe

os is Xp. Thanks

*bump*

Download the Sasser Removal Tool from here. Run in and let it remove your infection.

Then get to Windows Update (go here) and download all Critical Updates and Service Packs.

Thanks Owen.