Hello everyone,

I’ve noticed a problem recently with my Win XP SP3 system. When Windows Starts up, I get a Generic Host Processes error AND my monitor resolution changes to a new setting.
This has happened at least twice before, although I have seen the Generic Host Processes error by itself at startup on its own.

The error I see is:

Generic Host Processes for Win32 Services has encountered an error and needs to close.

In the Event Viewer, the error properties are as follows:

Faulting application svchost.exe, version 5.1.2600.5512, faulting module CNQL2404.dll, version , fault address 0x00027a4a.

I have run AdAware, Spybot, Windows Defender, Avast!, and Windows Malicious Software Removal Tool, and have followed the PC Cleaning and Protection Tools steps posted in the sticky in this forum. However, everything comes up clean.

Hijack This log below. Any insight appreciated! Thanks.


Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 7:46:12 PM, on 28/04/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16827)
Boot mode: Normal

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:\Program Files\Windows Defender\MsMpEng.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Lavasoft\Ad-Aware\AAWService.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Program Files\Nero\Nero8\Nero BackItUp\NBService.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\Lavasoft\Ad-Aware\AAWTray.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\ASUS\Ai Suite\AiNap\AiNap.exe
C:\Program Files\ASUS\Ai Suite\AiGear3\CpuPowerMonitor.exe
C:\Program Files\Analog Devices\Core\smax4pnp.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\Windows Defender\MSASCui.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\Program Files\Java\jre6\bin\jusched.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Microsoft.NET\Framework\v3.0\Windows Communication Foundation\infocard.exe
C:\Documents and Settings\Lisa\Desktop\HiJackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.ca/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL =
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 =
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: ContributeBHO Class - {074C1DC5-9320-4A9A-947D-C042949C6216} - C:\Program Files\Adobe\/Adobe Contribute CS3/contributeieplugin.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.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:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O3 - Toolbar: Contribute Toolbar - {517BDDE4-E3A7-4570-B21E-2B52B6139FC7} - C:\Program Files\Adobe\/Adobe Contribute CS3/contributeieplugin.dll
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [Ai Nap] "C:\Program Files\ASUS\Ai Suite\AiNap\AiNap.exe"
O4 - HKLM\..\Run: [CPU Power Monitor] "C:\Program Files\ASUS\Ai Suite\AiGear3\CpuPowerMonitor.exe"
O4 - HKLM\..\Run: [Cpu Level Up help] C:\Program Files\ASUS\Ai Suite\CpuLevelUpHelp.exe
O4 - HKLM\..\Run: [SoundMAXPnP] C:\Program Files\Analog Devices\Core\smax4pnp.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [Windows Defender] "C:\Program Files\Windows Defender\MSASCui.exe" -hide
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [AppleSyncNotifier] C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleSyncNotifier.exe
O4 - HKLM\..\Run: [Ad-Watch] C:\Program Files\Lavasoft\Ad-Aware\AAWTray.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'Default user')
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) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
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
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) -
O16 - DPF: {A9F8D9EC-3D0A-4A60-BD82-FBD64BAD370D} (DDRevision Class) -
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: Bonjour Service - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: iPod Service - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: Lavasoft Ad-Aware Service - Lavasoft - C:\Program Files\Lavasoft\Ad-Aware\AAWService.exe
O23 - Service: Nero BackItUp Scheduler 3 - Nero AG - C:\Program Files\Nero\Nero8\Nero BackItUp\NBService.exe
O23 - Service: NMIndexingService - Nero AG - C:\Program Files\Common Files\Nero\Lib\NMIndexingService.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe

Dani AI

Generated

Short summary: the svchost crash is almost certainly caused by a Canon CanoScan driver DLL rather than a virus. The CNQ/CNQL files are part of Canon’s CanoScan driver stack (the 5000/5000F package includes a CNQL2404 DLL and an uninstall helper), so the cleanest fix is to remove the scanner driver/software, confirm the fault disappears, then reinstall the correct package for your exact model. (driverguide.com)

Why that makes sense: svchost.exe is a generic host that loads service DLLs; if a third‑party service DLL faults inside svchost it can crash that host process and also disrupt other services (which can produce odd side effects such as resolution/driver fallout). That’s a well‑documented troubleshooting pattern for svchost problems. ()

Suggested, safe steps (in order):

  1. Search the system for CNQL*.dll and note its full path (so you know which package installed it).
  2. Disconnect the scanner USB and reboot — if the error stops, the scanner driver is the culprit.
  3. Uninstall Canon CanoScan software via Add/Remove Programs (or run the Canon removal utility included with the driver package), reboot, and delete leftover CNQ/CNQL files if any remain. (Canon packages historically include a DELSG/DelDrv helper; the 5000 driver listing shows CNQL2404 and DELSG.EXE.)
  4. Use Process Explorer to inspect the svchost instance and verify which DLLs are loaded; use Autoruns to remove any Canon auto‑starts before reinstalling.
  5. Reinstall the correct ScanGear/Toolbox driver for your exact model from Canon and test.

Process Explorer / Autoruns are the right tools to inspect loaded DLLs and startup entries; they make it easy to confirm the offending DLL and any auto‑start that brings it into svchost. (driverguide.com)

If the problem persists after removal/reinstall, try a clean boot to isolate services/startups (Microsoft’s KB on clean-boot troubleshooting is the standard next step). Also create a system restore point before manually deleting files or editing services. (learn.microsoft.com)

Notes: was on the right track flagging a Canon DLL; ’s 5000F is consistent with the CNQ files appearing in the 5000 driver package. This is much more likely a driver/service conflict than malware if multiple scanners came up clean.

Recommended Answers

All 7 Replies

Could be a corrupted display driver. You should check the manufacturer's website to see if there is a new one available.

Honestly don't see indications of malware
Could be a corrupted display driver. You should check the manufacturer's website to see if there is a new one available.
Go to the Device Manager and check to see the manufacturer of your Display Adapter then go to their website and check on a new driver version.

Thanks guys. Glad to hear it isn't a nasty case of malware.

I'll try updating the display driver tonight to see if that resolves the problem.

Hmmm...
I downloaded an updated display driver and received the same error message again.

I'm guessing it may be time for a clean install of XP as I can't think of anything else to do here.

faulting module CNQL2404.dll

This file belongs to CanoScan 3200, this is what is causing the fault. Do you have this scanner?

Really? I have a Canon Canoscan 5000F Scanner, not a 3200 scanner. Should I update the driver, or uninstall and then reinstall the software?

Really? I have a Canon Canoscan 5000F Scanner, not a 3200 scanner. Should I update the driver, or uninstall and then reinstall the software?

Yes

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