backdoor.trojan repeatedly blocked by Norton - Norton & MWB Scans Do Not Detect

skewlnu · September 19, 2009

I am running Windows Vista with Norton Internet Security 2009 installed and up to date

The other day it seems that I was infected with a trojan. My Norton informs me each time I start my computer now that it blocks a backdoor.trojan. Usually one notification as soon as I start up, and then another one a little bit later. However, numerous scans of my comptuer in both normal mode and safe mode turn up nothing more than tracking cookies most of the time. The odd time it will find a trojan and quarantine it. But the notifications that backdoor.trojan attempt has been blocked do not stop. I downloaded Malwarebytes and initially it found backdoor.trojan and trojan.downloader and quarantined them. But subsequent scans either find nothing, or trojan.agent. When it finds trojan.agent I will select that it be removed, however if I scan again, it will just reappear.

Is this a serious problem? This is not normal for my Norton to have this type of activity and it seems like something is in my computer messing around.

Here is the latest MWB scan which found nothing:

Malwarebytes' Anti-Malware 1.41

Database version: 2806

Windows 6.0.6001 Service Pack 1

9/18/2009 8:46:28 PM

mbam-log-2009-09-18 (20-46-28).txt

Scan type: Full Scan (C:\|D:\|)

Objects scanned: 264958

Time elapsed: 52 minute(s), 39 second(s)

Memory Processes Infected: 0

Memory Modules Infected: 0

Registry Keys Infected: 0

Registry Values Infected: 0

Registry Data Items Infected: 0

Folders Infected: 0

Files Infected: 0

Memory Processes Infected:

(No malicious items detected)

Memory Modules Infected:

(No malicious items detected)

Registry Keys Infected:

(No malicious items detected)

Registry Values Infected:

(No malicious items detected)

Registry Data Items Infected:

(No malicious items detected)

Folders Infected:

(No malicious items detected)

Files Infected:

(No malicious items detected)

Here is the most recent MWB log which found that pesky trojan.agent:

Malwarebytes' Anti-Malware 1.41

Database version: 2806

Windows 6.0.6001 Service Pack 1

9/17/2009 7:13:32 PM

mbam-log-2009-09-17 (19-13-32).txt

Scan type: Quick Scan

Objects scanned: 84298

Time elapsed: 2 minute(s), 48 second(s)

Memory Processes Infected: 0

Memory Modules Infected: 0

Registry Keys Infected: 0

Registry Values Infected: 1

Registry Data Items Infected: 0

Folders Infected: 0

Files Infected: 0

Memory Processes Infected:

(No malicious items detected)

Memory Modules Infected:

(No malicious items detected)

Registry Keys Infected:

(No malicious items detected)

Registry Values Infected:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\taskman (Trojan.Agent) -> Quarantined and deleted successfully.

Registry Data Items Infected:

(No malicious items detected)

Folders Infected:

(No malicious items detected)

Files Infected:

(No malicious items detected)

HijacThis log:

Logfile of Trend Micro HijackThis v2.0.2

Scan saved at 8:49:10 PM, on 9/18/2009

Platform: Windows Vista SP1 (WinNT 6.00.1905)

MSIE: Internet Explorer v8.00 (8.00.6001.18813)

Boot mode: Normal

Running processes:

C:\Windows\system32\taskeng.exe

C:\Windows\system32\Dwm.exe

C:\Windows\Explorer.EXE

C:\Program Files\Windows Defender\MSASCui.exe

C:\Windows\RtHDVCpl.exe

C:\Acer\Empowering Technology\eDataSecurity\x86\eDSLoader.exe

C:\Windows\System32\nvraidservice.exe

C:\Program Files\Google\Quick Search Box\GoogleQuickSearchBox.exe

C:\Windows\System32\rundll32.exe

C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe

C:\Program Files\Windows Sidebar\sidebar.exe

C:\Acer\Empowering Technology\ACER.EMPOWERING.FRAMEWORK.SUPERVISOR.EXE

C:\Program Files\Windows Sidebar\sidebar.exe

C:\Program Files\Windows Media Player\wmpnscfg.exe

C:\Program Files\Norton Internet Security\Engine\16.7.2.11\ccSvcHst.exe

C:\Windows\system32\wbem\unsecapp.exe

C:\Program Files\Microsoft Office\Office12\WINWORD.EXE

C:\Windows\system32\taskeng.exe

C:\Program Files\Malwarebytes' Anti-Malware\mbam.exe

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

C:\Program Files\Google\Google Toolbar\GoogleToolbarUser.exe

C:\Windows\system32\Macromed\Flash\FlashUtil10c.exe

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

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

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://homepage.acer.com/rdr.aspx?b=ACAW&a...;m=aspire_m1641

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://disnat.stockscores.com/mdiFrame.asp

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://en.us.acer.yahoo.com

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://homepage.acer.com/rdr.aspx?b=ACAW&a...;m=aspire_m1641

R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =

R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =

R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =

O1 - Hosts: ::1 localhost

O2 - BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - (no file)

O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll

O2 - BHO: Symantec NCO BHO - {602ADB0E-4AFF-4217-8AA1-95DAC4DFA408} - C:\Program Files\Norton Internet Security\Engine\16.7.2.11\coIEPlg.dll

O2 - BHO: Symantec Intrusion Prevention - {6D53EC84-6AAE-4787-AEEE-F4628F01010C} - C:\Program Files\Norton Internet Security\Engine\16.7.2.11\IPSBHO.DLL

O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - C:\Program Files\Google\Google Toolbar\GoogleToolbar.dll

O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\5.1.1309.15642\swg.dll

O2 - BHO: Google Dictionary Compression sdch - {C84D72FE-E17D-4195-BB24-76C02E2E7C4E} - C:\Program Files\Google\Google Toolbar\Component\fastsearch_A8904FB862BD9564.dll

O2 - BHO: Java Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll

O3 - Toolbar: Acer eDataSecurity Management - {5CBE3B7C-1E47-477e-A7DD-396DB0476E29} - C:\Acer\Empowering Technology\eDataSecurity\x86\eDStoolbar.dll

O3 - Toolbar: Norton Toolbar - {7FEBEFE3-6B19-4349-98D2-FFB09D4B49CA} - C:\Program Files\Norton Internet Security\Engine\16.7.2.11\coIEPlg.dll

O3 - Toolbar: Google Toolbar - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - C:\Program Files\Google\Google Toolbar\GoogleToolbar.dll

O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide

O4 - HKLM\..\Run: [RtHDVCpl] RtHDVCpl.exe

O4 - HKLM\..\Run: [eDataSecurity Loader] C:\Acer\Empowering Technology\eDataSecurity\x86\eDSloader.exe

O4 - HKLM\..\Run: [PCMMediaSharing] C:\Program Files\Acer Arcade Live\Acer HomeMedia Connect\Kernel\DMS\PCMMediaSharing.exe

O4 - HKLM\..\Run: [Apanel] C:\ACERSW\config\SetApanel.cmd

O4 - HKLM\..\Run: [Acer Product Registration] "C:\Program Files\Acer Registration\ACE1.exe" /startup

O4 - HKLM\..\Run: [Acer Assist Launcher] C:\Program Files\Acer Assist\launcher.exe

O4 - HKLM\..\Run: [NVRaidService] C:\Windows\system32\nvraidservice.exe

O4 - HKLM\..\Run: [Google Quick Search Box] "C:\Program Files\Google\Quick Search Box\GoogleQuickSearchBox.exe" /autorun

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

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

O4 - HKLM\..\Run: [skytel] Skytel.exe

O4 - HKCU\..\Run: [zmmclr] C:\Windows\system32\xcllsx.exe

O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe

O4 - HKCU\..\Run: [sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun

O4 - HKUS\S-1-5-19\..\Run: [sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'LOCAL SERVICE')

O4 - HKUS\S-1-5-19\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User 'LOCAL SERVICE')

O4 - HKUS\S-1-5-20\..\Run: [sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'NETWORK SERVICE')

O4 - Global Startup: ASETRES.EXE

O4 - Global Startup: Empowering Technology Launcher.lnk = ?

O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000

O9 - Extra button: Send to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll

O9 - Extra 'Tools' menuitem: S&end to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll

O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL

O13 - Gopher Prefix:

O18 - Protocol: symres - {AA1061FE-6C41-421F-9344-69640C9732AB} - C:\Program Files\Norton Internet Security\Engine\16.7.2.11\coIEPlg.dll

O18 - Filter: x-sdch - {B1759355-3EEC-4C1E-B0F1-B719FE26E377} - C:\Program Files\Google\Google Toolbar\Component\fastsearch_A8904FB862BD9564.dll

O20 - Winlogon Notify: !SASWinLogon - C:\Program Files\SUPERAntiSpyware\SASWINLO.dll

O23 - Service: Acer HomeMedia Connect Service - CyberLink - C:\Program Files\Acer Arcade Live\Acer HomeMedia Connect\Kernel\DMS\CLMSServer.exe

O23 - Service: ePerformance Service (AcerMemUsageCheckService) - Unknown owner - C:\Acer\Empowering Technology\ePerformance\MemCheck.exe

O23 - Service: eDataSecurity Service - Egis Incorporated - C:\Acer\Empowering Technology\eDataSecurity\x86\eDSService.exe

O23 - Service: eRecovery Service (eRecoveryService) - Acer Inc. - C:\Acer\Empowering Technology\eRecovery\eRecoveryService.exe

O23 - Service: eSettings Service (eSettingsService) - Unknown owner - C:\Acer\Empowering Technology\eSettings\Service\capuserv.exe

O23 - Service: FLEXnet Licensing Service - Acresso Software Inc. - C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe

O23 - Service: Google Software Updater (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe

O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Program Files\Common Files\LightScribe\LSSrvc.exe

O23 - Service: Norton Internet Security - Symantec Corporation - C:\Program Files\Norton Internet Security\Engine\16.7.2.11\ccSvcHst.exe

O23 - Service: NVIDIA Display Driver Service (nvsvc) - NVIDIA Corporation - C:\Windows\system32\nvvsvc.exe

O23 - Service: Cyberlink RichVideo Service(CRVS) (RichVideo) - Unknown owner - C:\Program Files\CyberLink\Shared Files\RichVideo.exe

--

End of file - 8184 bytes

skewlnu · September 20, 2009

I received some help from Nosirrah on this and he asked me to follow up on here to ensure that everything is okay. Here is the latest Hijackthis log file. Now if my computer appears clean is it okay to start using my computer to do things like online banking again?

Thanks in advance,

Hijack This Log: