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Heads Up! MBAM cant delete a trojan. Keeps coming back from the dead!


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Hi guys,

here's the situation. Got a friends laptop, had viruses, removed most of them with Mbam + SAS + Combofix.

Just 1 remains.

It might be a rootkit.

Mbam detects it, deletes it, it comes back up again.

In normal and safe mode.

System restore is already turned off, dosent help.

Heres the log of MBAM:

Malwarebytes' Anti-Malware 1.46

www.malwarebytes.org

Database version: 4125

Windows 5.1.2600 Service Pack 2
Internet Explorer 6.0.2900.2180

7/22/2010 8:18:07 AM
mbam-log-2010-07-22 (08-18-07).txt

Scan type: Quick scan
Objects scanned: 13655
Time elapsed: 1 minute(s), 54 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 6
Registry Values Infected: 0
Registry Data Items Infected: 1
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_USERS\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{43bf8cd1-c5d5-2230-7bb2-98f22c2b7dc6} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{3446af26-b8d7-199b-4cfc-6fd764ca5c9f} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{4776c4dc-e894-7c06-2148-5d73cef5f905} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{43bf8cd1-c5d5-2230-7bb2-98f22c2b7dc6} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{3446af26-b8d7-199b-4cfc-6fd764ca5c9f} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{4776c4dc-e894-7c06-2148-5d73cef5f905} (Backdoor.Bot) -> Quarantined and deleted successfully.

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
HKEY_CLASSES_ROOT\regfile\shell\open\command\(default) (Broken.OpenCommand) -> Bad: (regedit.exe %1) Good: (regedit.exe "%1") -> Quarantined and deleted successfully.

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

HIjackthis Log is more clear, it identifies the file as

F2 - REG:system.ini: UserInit=C:\WINDOWS\SYSTEM32\Userinit.exe,C:\WINDOWS\system32\fbqjhw.exe,

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 12:32:02 PM, on 7/22/2010
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\csrss.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\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\ASTSRV.EXE
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Program Files\CyberLink\Shared Files\RichVideo.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Toshiba\Bluetooth Toshiba Stack\TosBtSrv.exe
C:\WINDOWS\system32\wdfmgr.exe
C:\WINDOWS\System32\alg.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\VTTimer.exe
C:\WINDOWS\system32\S3trayp.exe
C:\WINDOWS\RTHDCPL.EXE
C:\Program Files\Genesys Logic PC Camera Device\GenePccMon.exe
C:\Program Files\USB Disk Security\USBGuard.exe
C:\Program Files\Microsoft Office\Office12\GrooveMonitor.exe
C:\PROGRA~1\MyPortal\Speed-X\SpeedX.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exe
C:\Program Files\HijackThis.exe
C:\WINDOWS\system32\wbem\wmiprvse.exe

F2 - REG:system.ini: UserInit=C:\WINDOWS\SYSTEM32\Userinit.exe,C:\WINDOWS\system32\fbqjhw.exe,
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.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
O4 - HKLM\..\Run: [VTTimer] VTTimer.exe
O4 - HKLM\..\Run: [S3Trayp] S3trayp.exe
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [GenePccMon.exe] C:\Program Files\Genesys Logic PC Camera Device\GenePccMon.exe
O4 - HKLM\..\Run: [USB Antivirus] C:\Program Files\USB Disk Security\USBGuard.exe
O4 - HKLM\..\Run: [GrooveMonitor] "C:\Program Files\Microsoft Office\Office12\GrooveMonitor.exe"
O4 - HKCU\..\Run: [SpeedX] C:\PROGRA~1\MyPortal\Speed-X\SpeedX.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
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
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
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:\PROGRA~1\MICROS~2\Office12\GR99D3~1.DLL
O20 - Winlogon Notify: !SASWinLogon - C:\Program Files\SUPERAntiSpyware\SASWINLO.DLL
O22 - SharedTaskScheduler: Browseui preloader - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\system32\browseui.dll
O22 - SharedTaskScheduler: Component Categories cache daemon - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\WINDOWS\system32\browseui.dll
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exe
O23 - Service: ASP.NET State Service (aspnet_state) - Unknown owner - C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_state.exe (file missing)
O23 - Service: AST Service (astcc) - Nalpeiron Ltd. - C:\WINDOWS\system32\ASTSRV.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: NMIndexingService - Unknown owner - C:\Program Files\Common Files\Ahead\Lib\NMIndexingService.exe (file missing)
O23 - Service: Cyberlink RichVideo Service(CRVS) (RichVideo) - Unknown owner - C:\Program Files\CyberLink\Shared Files\RichVideo.exe
O23 - Service: TOSHIBA Bluetooth Service - TOSHIBA CORPORATION - C:\Program Files\Toshiba\Bluetooth Toshiba Stack\TosBtSrv.exe
O23 - Service: TuneUp Drive Defrag Service (TuneUp.Defrag) - TuneUp Software GmbH - C:\WINDOWS\System32\TuneUpDefragService.exe
O23 - Service: Venturi Client (VenturiClient) - Venturi Wireless - C:\Program Files\Netbooster Client\Client\ventc.exe

--
End of file - 4866 bytes

Guys, help please!!

EDit:

Some more info. it looks like its this one:

http://www.prevx.com/filenames/X1125429822...FBQJHW.EXE.html

Its funny that the prevx website lists this one as originating in the UK, because until a couple of weeks, this laptop was in the Uk.

Now its back in India.

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Update: This laptop does not have internet access for now, so i wont be able to do online scans, but will have to download the update database manually.

Also, this has XP pro SP2 installed. There is no autorun.inf infection happening, as i checked by inserting pendrives in the usb ports, everything came up clean. So i dont know what this fbqjhw.exe is doing.

Thanks for all your hard work in helping us.

In the mean time, i will scan with Avira and AVG bootscan rescue CD's and will keep you updated.

Please tell me what else you would like from me.

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Hello vladmir! Welcome to Malwarebytes' Anti-Malware Forums!

My name is Borislav and I will be glad to help you solve your problems with malware. Before we begin, please note the following:

  • The process of cleaning your system may take some time, so please be patient.
  • Follow my instructions step by step if there is a problem somewhere, stop and tell me.
  • Stay with the thread until I tell you that your system is clean. Missing symptoms does not mean that everything is okay.
  • Instructions that I give are for your system only!
  • If you don't know or can't understand something please ask.
  • Do not install or uninstall any software or hardware, while work on.
  • Keep me informed about any changes.

Stop what you are doing. Follow these instructions and post all logs if you can:

http://forums.malwarebytes.org/index.php?showtopic=9573

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