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Something To Do With Dllhost.exe?


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#1 billtvshow

billtvshow

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Posted 08 January 2007 - 01:57 AM

Ok. I am working on my brother's computer and it is on dialup, which makes working through this process exceptionally hard. I began a week or so ago by doing a format and then install of windows from the d:\ backup. Everything seemed to be fine, until the malware, etc that had been embedded in the backup drive began to show up. Anyways, the main problem that has emerged is that when they are connected, a program seems to be sending out packets of data to random ip addresses that are similar to theirs. This matches the description of many worms that I've read about online. Having run several different adware/malware/virus scans on it from various programs, none have been able to pinpoint the exact problem. So I installed Zone Alarm and it recognized the dllhost.exe as trying to send something. Upon further research, I saw that it could possibly be the welchia worm, however the dllhost.exe is not in c:\windows\system32\wins folder, as described as a symptom of welchia. Though, it is in both c:\windows\system32\ and c:\windows\system\ and I don't know if it's supposed to be in the latter.
In Zone Alarm, it is the dllhost.exe in the system folder (without 32) that is constantly sending out the packets of data, which effectively slows their internet to a grinding halt. So far I've run norton, adaware, spybot s&d, and avg scans. I tried house call, but it would never load due to this very problem. If I block dllhost.exe in zonealarm it keeps it from getting out and using bandwidth, but then webpages do not load consistently or at all. If I end the process in taskmgr, it eventually comes right back. I'm not really sure where to go from here. I'll greatly appreciate anyones insight and help. Here's my log:

Logfile of HijackThis v1.99.1
Scan saved at 1:01:06 AM, on 1/8/2007
Platform: Windows XP (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (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\Explorer.EXE
C:\windows\system\hpsysdrv.exe
C:\HP\KBD\KBD.EXE
C:\Program Files\WildTangent\DDC\DDCManager\DDCMan.exe
C:\WINDOWS\system32\dla\tfswctrl.exe
C:\WINDOWS\System32\hkcmd.exe
C:\WINDOWS\System32\S3apphk.exe
C:\PROGRA~1\NORTON~1\navapw32.exe
C:\Program Files\Lexmark X74-X75\lxbbbmgr.exe
C:\Program Files\BellSouth\Connection Tool\IPClient.exe
C:\Program Files\BellSouth\Connection Tool\IPMon32.exe
C:\Program Files\Lexmark X74-X75\lxbbbmon.exe
C:\Program Files\FinePixViewer\QuickDCF.exe
C:\Program Files\Google\Google Updater\GoogleUpdater.exe
C:\WINDOWS\system32\LEXBCES.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\LEXPPS.EXE
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
c:\Program Files\Norton AntiVirus\navapsvc.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system\dllhost.exe
C:\Program Files\Mozilla Firefox\firefox.exe
c:\Program Files\Microsoft Money\System\urlmap.exe
C:\Documents and Settings\Owner\My Documents\My Downloads\hijackthis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://us5.hpwis.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://srch-us5.hpwis.com/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://pack.google.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://home.bellsouth.net
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://srch-us5.hpwis.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://srch-us5.hpwis.com/
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://home.bellsouth.net/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer provided by Bellsouth® Internet Service
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - c:\Program Files\Norton AntiVirus\NavShExt.dll
O2 - BHO: (no name) - {FDD3B846-8D59-4ffb-8758-209B6AD74ACC} - c:\Program Files\Microsoft Money\System\mnyviewer.dll
O3 - Toolbar: &hp toolkit - {B2847E28-5D7D-4DEB-8B67-05D28BCF79F5} - C:\HP\EXPLOREBAR\HPTOOLKT.DLL
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - c:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [hpsysdrv] c:\windows\system\hpsysdrv.exe
O4 - HKLM\..\Run: [PreloadApp] c:\hp\drivers\printers\photosmart\hphprld.exe c:\hp\drivers\printers\photosmart\setup.exe -d
O4 - HKLM\..\Run: [KBD] C:\HP\KBD\KBD.EXE
O4 - HKLM\..\Run: [DDCM] "C:\Program Files\WildTangent\DDC\DDCManager\DDCMan.exe" -Background
O4 - HKLM\..\Run: [DDCActiveMenu] "C:\Program Files\WildTangent\DDC\ActiveMenu\DDCActiveMenu.exe" -boot
O4 - HKLM\..\Run: [Recguard] C:\WINDOWS\SMINST\RECGUARD.EXE
O4 - HKLM\..\Run: [dla] C:\WINDOWS\system32\dla\tfswctrl.exe
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\System32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE NvQTwk,NvCplDaemon initialize
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [S3apphk] S3apphk.exe
O4 - HKLM\..\Run: [PS2] C:\WINDOWS\system32\ps2.exe
O4 - HKLM\..\Run: [NAV Agent] c:\PROGRA~1\NORTON~1\navapw32.exe
O4 - HKLM\..\Run: [Lexmark X74-X75] "C:\Program Files\Lexmark X74-X75\lxbbbmgr.exe"
O4 - HKLM\..\Run: [Anti-Virus Update Scheduler] C:\djsi.exe
O4 - HKLM\..\Run: [IPInSightLAN 01] "C:\Program Files\BellSouth\Connection Tool\IPClient.exe" -l
O4 - HKLM\..\Run: [IPInSightMonitor 01] "C:\Program Files\BellSouth\Connection Tool\IPMon32.exe"
O4 - HKLM\..\Run: [REGSHAVE] C:\Program Files\REGSHAVE\REGSHAVE.EXE /AUTORUN
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [Zone Labs Client] "C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\1.2.1128.2480\GoogleToolbarNotifier.exe
O4 - Startup: PowerReg Scheduler V3.exe
O4 - Global Startup: Exif Launcher.lnk = ?
O4 - Global Startup: Google Updater.lnk = C:\Program Files\Google\Google Updater\GoogleUpdater.exe
O9 - Extra button: MktBrowser - {17A27031-71FC-11d4-815C-005004D0F1FA} - C:\Program Files\MarketBrowser\lmt\MarketBrowser_Launch.xpy
O9 - Extra 'Tools' menuitem: MarketBrowser - {17A27031-71FC-11d4-815C-005004D0F1FA} - C:\Program Files\MarketBrowser\lmt\MarketBrowser_Launch.xpy
O9 - Extra button: MoneySide - {E023F504-0C5A-4750-A1E7-A9046DEA8A21} - c:\Program Files\Microsoft Money\System\mnyviewer.dll
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O14 - IERESET.INF: START_PAGE_URL=http://home.bellsouth.net
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/...b?1167965589138
O17 - HKLM\System\CCS\Services\Tcpip\..\{E002B993-6276-4748-B25D-8B23E148F9E8}: NameServer = 205.152.37.23 205.152.132.23
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxsrvc.dll
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
O23 - Service: Windows Host Services (DLLHOST32) - Unknown owner - C:\WINDOWS\system\dllhost.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: LexBce Server (LexBceS) - Lexmark International, Inc. - C:\WINDOWS\system32\LEXBCES.EXE
O23 - Service: Norton AntiVirus Auto Protect Service (navapsvc) - Symantec Corporation - c:\Program Files\Norton AntiVirus\navapsvc.exe
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZoneLabs\vsmon.exe

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#2 miekiemoes

miekiemoes

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Posted 08 January 2007 - 02:16 AM

Hello,

The dllhost.exe present in the System32 folder is ok. The other one is bad.

Please perform next steps to get rid of it.

* Download SDFix and save it to your Desktop.

* Double click SDFix.exe and it will extract the files to %systemdrive%
(Drive that contains the Windows Directory, typically C:\SDFix)

* Reboot into Safe Mode`: ( without networking support !)
°To get into the Windows Safe Mode, restart your computer and, just before Windows starts to load, tap the F8 key a few times.
Choose Safe Mode from the menu that will appear and press Enter.
  • Open the extracted SDFix folder and double click RunThis.bat to start the script.
  • Type Y to begin the cleanup process.
  • It will remove any Trojan Services and Registry Entries that it finds then prompt you to press any key to Reboot.
  • Press any Key and it will restart the PC.
  • When the PC restarts the Fixtool will run again and complete the removal process then display Finished, press any key to end the script and load your desktop icons.
  • Once the desktop icons load the SDFix report will open on screen and also save into the SDFix folder as Report.txt
    (Report.txt will also be copied to Clipboard ready for posting back on the forum).
  • Finally paste the contents of the Report.txt back on the forum with a new HijackThis log
As a sidenote..

I notice from your log that you are running more than one different Anti-Virus programs with Auto-protect enabled. Norton and AVG
Never install more than one Antivirus and Firewall! Rather than giving you extra protection, it will decrease the reliability of it seriously!
The reason for this is that if both products have their automatic (Real-Time) protection switched on, your system may lock up due to both software products attempting to access the same file at the same time.
Also because more than one Antivirus and Firewall installed are not compatible with eachother, it can cause system performance problems and a serious system slowdown.

I would strongly advise you to only have one Anti-Virus with the Auto-Protect feature running at any one time!
If you decide to only keep one Anti-Virus installed,
you should uninstall the other(s) through the Add or Remove Programs option in Control Panel.
AntispywareScanners---Antivirus Scanners---Firewalls---Online Scanners---Prevention---Help! My computer is slow---My Blog---Follow me on Twitter.
My help is ALWAYS FREE, but if you want to donate to help me continue my fight against malware -- click here!
Asking for help via Private Message or Mail will be ignored - So If you need help, post your problem in the forum.

#3 miekiemoes

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Posted 17 January 2007 - 06:19 PM

Due to the lack of feedback, this Topic is closed.
If you need this topic reopened for continuations of existing problems, please request this by sending me a PM with the address of the thread. This applies only to the original topic starter.

Everyone else please begin a New Topic.
AntispywareScanners---Antivirus Scanners---Firewalls---Online Scanners---Prevention---Help! My computer is slow---My Blog---Follow me on Twitter.
My help is ALWAYS FREE, but if you want to donate to help me continue my fight against malware -- click here!
Asking for help via Private Message or Mail will be ignored - So If you need help, post your problem in the forum.




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