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Cannot Remove Backdoor.Bot


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We have an entire computer lab for students that reports the Backdoor.Bot. Sophos Anti-Virus is currently our campus-wide solution. We use MalwareBytes to check for suspected issues that Sophos may not be catching. In this case, Sophos failed to detect anything. The MalwareBytes log file is below, along with the HiJackThis log file. This entire lab has been taken off the network, but leaving it off is not an option. Any help would be greatly appreciated.

Phil Arnold

University of Central Arkansas

===================================================

Malwarebytes' Anti-Malware 1.41

Database version: 2883

Windows 5.1.2600 Service Pack 3

10/1/2009 1:48:32 PM

mbam-log-2009-10-01 (13-48-08).txt

Scan type: Full Scan (C:\|)

Objects scanned: 160431

Time elapsed: 1 hour(s), 15 minute(s), 46 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: 3

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\CurrentVersion\Run\Windows Services (Backdoor.Bot) -> No action taken.

Registry Data Items Infected:

(No malicious items detected)

Folders Infected:

(No malicious items detected)

Files Infected:

C:\WINDOWS\system32\serauth1.dll (Trojan.Agent) -> No action taken.

C:\WINDOWS\system32\serauth2.dll (Trojan.Agent) -> No action taken.

C:\WINDOWS\shvhost.exe (Backdoor.Bot) -> No action taken.

===================================================

Logfile of Trend Micro HijackThis v2.0.2

Scan saved at 8:56:16 AM, on 9/29/2009

Platform: Windows XP SP3 (WinNT 5.01.2600)

MSIE: Internet Explorer v8.00 (8.00.6001.18702)

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\svchost.exe

C:\WINDOWS\System32\svchost.exe

C:\WINDOWS\system32\spoolsv.exe

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

C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\mdm.exe

C:\Program Files\Sophos\Sophos Anti-Virus\SAVAdminService.exe

C:\Program Files\Sophos\Remote Management System\ManagementAgentNT.exe

C:\Program Files\Sophos\AutoUpdate\ALsvc.exe

C:\Program Files\Sophos\Remote Management System\RouterNT.exe

C:\WINDOWS\system32\svchost.exe

C:\WINDOWS\system32\msiexec.exe

C:\WINDOWS\Explorer.EXE

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

C:\Program Files\Roxio\Easy CD Creator 5\DirectCD\DirectCD.exe

C:\WINDOWS\system32\dpmw32.exe

C:\WINDOWS\system32\NWTRAY.EXE

C:\WINDOWS\system32\iprntctl.exe

C:\WINDOWS\system32\iprntlgn.exe

C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe

C:\WINDOWS\system32\ctfmon.exe

C:\Program Files\Sophos\AutoUpdate\ALMon.exe

C:\WINDOWS\shvhost.exe

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

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.uca.edu/

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

R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://windowsupdate.microsoft.com/

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

O2 - BHO: Sophos Web Content Scanner - {39EA7695-B3F2-4C44-A4BC-297ADA8FD235} - C:\Program Files\Sophos\Sophos Anti-Virus\SophosBHO.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: [sunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"

O4 - HKLM\..\Run: [AdaptecDirectCD] "C:\Program Files\Roxio\Easy CD Creator 5\DirectCD\DirectCD.exe"

O4 - HKLM\..\Run: [NDPS] C:\WINDOWS\system32\dpmw32.exe

O4 - HKLM\..\Run: [NWTRAY] NWTRAY.EXE

O4 - HKLM\..\Run: [igfxTray] C:\WINDOWS\system32\igfxtray.exe

O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\system32\hkcmd.exe

O4 - HKLM\..\Run: [iPrint Tray] C:\WINDOWS\system32\iprntctl.exe TRAY_ICON

O4 - HKLM\..\Run: [iPrint Event Monitor] C:\WINDOWS\system32\iprntlgn.exe

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

O4 - HKLM\..\Run: [Windows Services] shvhost.exe

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

O4 - Global Startup: AutoUpdate Monitor.lnk = C:\Program Files\Sophos\AutoUpdate\ALMon.exe

O4 - Global Startup: Microsoft Office.lnk = C:\FrontPage\PFiles\MSOffice\Office\OSA9.EXE

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

O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.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: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://www.update.microsoft.com/microsoftu...b?1213117141750

O16 - DPF: {CF40ACC5-E1BB-4AFF-AC72-04C2F616BCA7} (get_atlcom Class) - http://wwwimages.adobe.com/www.adobe.com/p...obat/nos/gp.cab

O20 - AppInit_DLLs: C:\PROGRA~1\Sophos\SOPHOS~1\SOPHOS~1.DLL

O23 - Service: Client Update Service for Novell (cusrvc) - Novell, Inc. - C:\WINDOWS\system32\cusrvc.exe

O23 - Service: getPlus® Helper - NOS Microsystems Ltd. - C:\Program Files\NOS\bin\getPlus_HelperSvc.exe

O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1150\Intel 32\IDriverT.exe

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

O23 - Service: Sophos Anti-Virus status reporter (SAVAdminService) - Sophos Plc - C:\Program Files\Sophos\Sophos Anti-Virus\SAVAdminService.exe

O23 - Service: Sophos Anti-Virus (SAVService) - Sophos Plc - C:\Program Files\Sophos\Sophos Anti-Virus\SavService.exe

O23 - Service: Sophos Agent - Sophos Plc - C:\Program Files\Sophos\Remote Management System\ManagementAgentNT.exe

O23 - Service: Sophos AutoUpdate Service - Sophos Plc - C:\Program Files\Sophos\AutoUpdate\ALsvc.exe

O23 - Service: Sophos Message Router - Sophos Plc - C:\Program Files\Sophos\Remote Management System\RouterNT.exe

--

End of file - 5792 bytes

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Welcome to the forum Phil

"Cannot Remove Backdoor.Bot"

I assume by that you have attempted to fix those items with Mbam ?

End this process with Taskmanager (if possible)

C:\WINDOWS\shvhost.exe

then do a quick scan and fix with Mbam, reboot when prompted

Do another quickscan and post the log please

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