Hi,

here it goes again - I saw this post several times on this forum, but none of them is same as mine, so I am opening a new post. Back in the past, I used this PC only for Azureus, and only from time to time, so I did not install any antivirus, antispyware or even firewall. It's OS is WIN XP SP2. Surely enough, as it was in some kind of experiment, this PC caught some kind of virus. First it was ieupd.exe which I found in my desktop without downloading it somehow and at that time PC just booted every time straight to BSOD with different problem I solved with prevx 2.0, however here is my problem now:

After this, now only sometimes, not all the time, PC goes to BSOD with message:
Driver_irql_not_less_or_equal Stop 0x000000d1
(0xF79BD18C, 0x00000002, 0x00000001, 0xF79B96E7)
runtime.sys - Address F79B96E7 base at F79B9000, datestamp 463f155a
(numbers may be different)

So, runtime.sys is affected, so I packed 5 last minidumps and I hope this is sufficient. I also collected HijackThis Log file, and am attaching it here, please let me know what do you think I can do now. This time I have ZoneAlarm and Prevx2.0 running, however, I will need to install some antivirus as well for the future. I am not starting IE anymore, only Firefox. Thank you in advance for your help. Here is tha HijackThis LOG:

Logfile of HijackThis v1.99.1
Scan saved at 12:06:17 AM, on 7/3/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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:\Program Files\Internet Explorer\iexplore.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\ZoneLabs\vsmon.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Program Files\Prevx1\PXAgent.exe
C:\Program Files\Prevx1\PXConsole.exe
C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Azureus\Azureus.exe
C:\Program Files\Microsoft Office\Office\1033\msoffice.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.ca/
F2 - REG:system.ini: UserInit=C:\WINDOWS\system32\userinit.exe,,C:\WINDOWS\SERVICES.EXE
O2 - BHO: (no name) - {0f8ff0d9-a8a7-4cee-907c-3b9b3ddbf0ec} - C:\WINDOWS\system32\dnsocx.dll (file missing)
O2 - BHO: (no name) - {26FAFD75-1005-41F6-978D-178C00165C0B} - C:\WINDOWS\system32\mljkllk.dll (file missing)
O2 - BHO: Malicious Scripts Scanner - {55EA1964-F5E4-4D6A-B9B2-125B37655FCB} - C:\Documents and Settings\All Users\Application Data\Prevx\pxbho.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_11\bin\ssv.dll
O2 - BHO: C:\WINDOWS\system32\fs6ehnf8jd.dll - {8D5849A2-93F3-429D-FF34-260A2068897C} - C:\WINDOWS\system32\fs6ehnf8jd.dll (file missing)
O4 - HKLM\..\Run: [startdrv] C:\WINDOWS\Temp\startdrv.exe
O4 - HKLM\..\Run: [PrevxOne] "C:\Program Files\Prevx1\PXConsole.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\Program Files\Common Files\Ahead\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [Lexmark_X79-55] C:\WINDOWS\system32\lsasss.exe
O4 - HKLM\..\Run: [ZoneAlarm Client] "C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKLM\..\Run: [avp] C:\WINDOWS\avp.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.5.0_11\bin\jusched.exe"
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Startup: Azureus.lnk = C:\Program Files\Azureus\Azureus.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_11\bin\npjpi150_11.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_11\bin\npjpi150_11.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O17 - HKLM\System\CCS\Services\Tcpip\..\{968FEE7F-97C5-42DE-B6B7-360AB4B2207B}: NameServer = 24.153.22.195,24.153.23.66
O20 - AppInit_DLLs:
O20 - Winlogon Notify: dnsocx - dnsocx.dll (file missing)
O20 - Winlogon Notify: mljkllk - mljkllk.dll (file missing)
O20 - Winlogon Notify: partnershipreg - C:\Documents and Settings\All Users\Documents\Settings\partnership.dll
O20 - Winlogon Notify: rpcc - C:\WINDOWS\system32\rpcc.dll
O20 - Winlogon Notify: rpcc1 - C:\WINDOWS\system32\rpcc1.dll
O21 - SSODL: SysBoot32 - {AAAADDB3-ACD5-4144-982E-895D4C68A50C} - C:\WINDOWS\system32\svcrt32.dll
O23 - Service: Prevx Agent (PREVXAgent) - Unknown owner - C:\Program Files\Prevx1\PXAgent.exe" -f (file missing)
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZoneLabs\vsmon.exe

All the crashes are caused by runtime.sys. This is a Trojan - INFO. See HERE.