I have a problem with a DNS Changer.

[EugeneB]

My kids have infected my laptop with a DNS changer for the second time in 4 months. The first time I killed it off with a software called Exterminate it!, but this time it can't do the job and th virus keeps comeing back. Please help...

I ran HijackThis and here's the contents of the logfile:

Logfile of Trend Micro HijackThis v2.0.2

Scan saved at 11:08:28, on 21/03/2009

Platform: Windows XP SP3 (WinNT 5.01.2600)

MSIE: Internet Explorer v7.00 (7.00.6000.16791)

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:\WINDOWS\System32\svchost.exe

C:\WINDOWS\system32\spoolsv.exe

c:\drivers\audio\r190031\stacsv.exe

C:\Program Files\Broadcom Corporation\Broadcom USH Host Components\CV\bin\HostControlService.exe

C:\Program Files\Broadcom Corporation\Broadcom USH Host Components\CV\bin\HostStorageService.exe

C:\WINDOWS\Explorer.EXE

C:\Program Files\Dell\Dell ControlPoint\Connection Manager\SMManager.exe

C:\Program Files\DellTPad\Apoint.exe

C:\Program Files\IDT\WDM\sttray.exe

C:\WINDOWS\system32\AESTFltr.exe

C:\Program Files\DellTPad\ApMsgFwd.exe

C:\WINDOWS\system32\rundll32.exe

C:\WINDOWS\system32\RUNDLL32.EXE

C:\Program Files\DellTPad\HidFind.exe

C:\Program Files\DellTPad\Apntex.exe

C:\Program Files\Intel\Intel Matrix Storage Manager\iaanotif.exe

C:\Program Files\Wave Systems Corp\Services Manager\Docmgr\bin\WavXDocMgr.exe

C:\Program Files\Wave Systems Corp\SecureUpgrade.exe

C:\Program Files\Dell\Dell ControlPoint\Dell.ControlPoint.exe

C:\Program Files\Dell\Dell ControlPoint\Connection Manager\Dell.UCM.exe

C:\Program Files\CyberLink\PowerDVD DX\PDVDDXSrv.exe

C:\Program Files\Java\jre6\bin\jusched.exe

C:\Program Files\Common Files\InstallShield\UpdateService\ISUSPM.exe

C:\WINDOWS\system32\ctfmon.exe

C:\Program Files\Intel\ASF Agent\ASFAgent.exe

C:\Program Files\Dell\Dell ControlPoint\DCPButtonSvc.exe

C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\mscorsvw.exe

C:\Program Files\Dell\Dell ControlPoint\System Manager\DCPSysMgrSvc.exe

C:\Program Files\Intel\Intel Matrix Storage Manager\IAANTMon.exe

C:\Program Files\Java\jre6\bin\jqs.exe

C:\WINDOWS\system32\nvsvc32.exe

C:\WINDOWS\system32\svchost.exe

C:\Program Files\Wave Systems Corp\Trusted Drive Manager\TdmService.exe

C:\WINDOWS\System32\svchost.exe

C:\Program Files\Internet Explorer\iexplore.exe

C:\Program Files\Exterminate It!\ExterminateIt.exe

C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = www.google.ie/ig/dell?hl=en&client=dell-row-rel&channel=ie&ibd=6081213

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://search.msn.ie/sphome.aspx

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.google.ie/hws/sb/dell-row-rel/e...html?channel=ie

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.co.uk/

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157

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 = http://go.microsoft.com/fwlink/?LinkId=69157

R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.google.ie/hws/sb/dell-row-rel/e...html?channel=ie

R1 - HKLM\Software\Microsoft\Internet Explorer\Search,Default_Page_URL = www.google.ie/ig/dell?hl=en&client=dell-row-rel&channel=ie&ibd=6081213

R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://www.google.ie/ig/dell?hl=en&cli...amp;ibd=6081213

R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = ftp=staff-proxi.ul.ie:8080;http=staff-proxi.ul.ie:8080;https=staff-proxi.ul.ie:8080

R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.ul.ie;<local>

O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll

O2 - BHO: Browser Address Error Redirector - {CA6319C0-31B7-401E-A518-A07C3DB8F777} - C:\Program Files\Dell\BAE\BAE.dll

O2 - BHO: Java 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

O4 - HKLM\..\Run: [Apoint] C:\Program Files\DellTPad\Apoint.exe

O4 - HKLM\..\Run: [sysTrayApp] %ProgramFiles%\IDT\WDM\sttray.exe

O4 - HKLM\..\Run: [AESTFltr] %SystemRoot%\system32\AESTFltr.exe /NoDlg

O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup

O4 - HKLM\..\Run: [nwiz] nwiz.exe /installquiet

O4 - HKLM\..\Run: [NVHotkey] rundll32.exe nvHotkey.dll,Start

O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit

O4 - HKLM\..\Run: [iAAnotif] C:\Program Files\Intel\Intel Matrix Storage Manager\iaanotif.exe

O4 - HKLM\..\Run: [ChangeTPMAuth] C:\Program Files\Wave Systems Corp\Common\ChangeTPMAuth.exe /T:NTRU12

O4 - HKLM\..\Run: [WavXMgr] C:\Program Files\Wave Systems Corp\Services Manager\Docmgr\bin\WavXDocMgr.exe

O4 - HKLM\..\Run: [secureUpgrade] C:\Program Files\Wave Systems Corp\SecureUpgrade.exe

O4 - HKLM\..\Run: [EmbassySecurityCheck] "C:\Program Files\Wave Systems Corp\EMBASSY Security Setup\EMBASSYSecurityCheck.exe"

O4 - HKLM\..\Run: [DellControlPoint] "C:\Program Files\Dell\Dell ControlPoint\Dell.ControlPoint.exe"

O4 - HKLM\..\Run: [DCPstrApp] C:\Program Files\Dell\Dell ControlPoint\Security Manager\SecurityDeviceInfoSetRegistryString.exe

O4 - HKLM\..\Run: [DellConnectionManager] "C:\Program Files\Dell\Dell ControlPoint\Connection Manager\Dell.UCM.exe"

O4 - HKLM\..\Run: [PDVDDXSrv] "C:\Program Files\CyberLink\PowerDVD DX\PDVDDXSrv.exe"

O4 - HKLM\..\Run: [sunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"

O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe"

O4 - HKCU\..\Run: [iSUSPM] "C:\Program Files\Common Files\InstallShield\UpdateService\ISUSPM.exe" -scheduler

O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe

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')

O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE

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) - {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: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftupdat...b?1229600946937

O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL

O23 - Service: ASF Agent (ASFAgent) - Intel Corporation - C:\Program Files\Intel\ASF Agent\ASFAgent.exe

O23 - Service: Dell ControlPoint Button Service (buttonsvc32) - Dell Inc. - C:\Program Files\Dell\Dell ControlPoint\DCPButtonSvc.exe

O23 - Service: Credential Vault Host Control Service - Broadcom Corporation - C:\Program Files\Broadcom Corporation\Broadcom USH Host Components\CV\bin\HostControlService.exe

O23 - Service: Credential Vault Host Storage - Broadcom Corporation - C:\Program Files\Broadcom Corporation\Broadcom USH Host Components\CV\bin\HostStorageService.exe

O23 - Service: Dell ControlPoint System Manager (dcpsysmgrsvc) - Dell Inc. - C:\Program Files\Dell\Dell ControlPoint\System Manager\DCPSysMgrSvc.exe

O23 - Service: Intel® Matrix Storage Event Monitor (IAANTMON) - Intel Corporation - C:\Program Files\Intel\Intel Matrix Storage Manager\IAANTMon.exe

O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe

O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe

O23 - Service: SecureStorageService - Wave Systems Corp. - C:\Program Files\Wave Systems Corp\Secure Storage Manager\SecureStorageService.exe

O23 - Service: Smith Micro Connection Manager Service (SMManager) - Smith Micro Software, Inc. - C:\Program Files\Dell\Dell ControlPoint\Connection Manager\SMManager.exe

O23 - Service: Audio Service (STacSV) - IDT, Inc. - c:\drivers\audio\r190031\stacsv.exe

O23 - Service: stllssvr - MicroVision Development, Inc. - C:\Program Files\Common Files\SureThing Shared\stllssvr.exe

O23 - Service: NTRU TSS v1.2.1.27 TCS (tcsd_win32.exe) - Unknown owner - C:\Program Files\NTRU Cryptosystems\NTRU TCG Software Stack\bin\tcsd_win32.exe

O23 - Service: TdmService - Wave Systems Corp. - C:\Program Files\Wave Systems Corp\Trusted Drive Manager\TdmService.exe

--

End of file - 9365 bytes

[EugeneB]

Just an update:

1) the "Malwarebytes' Anti-Malware" wouldn't start (aparently disabled by the virus),

2) The Avira Antivir doesn't detect the virus. That is, it does detect and remove some trojans (TR/CryptXPACK.Gen, TR/Patched.CK.6, etc), but the original problem doesn't go away.

[EugeneB]

Another (hopefully final) update: I've cleaned the virus up using Spyware Doctor. By the way, it wouldn't desinfect my PC, unless I buy a license -- for which Exterminate it! was called a rogue at this forum.

So problem solved, and I withdraw my request.