Trojan Backdoor afcore.bm

Discussion in 'adware, spyware & hijack cleaning' started by mikeymidge, Jun 24, 2004.

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  1. mikeymidge

    mikeymidge Registered Member

    Joined:
    Jun 24, 2004
    Posts:
    3
    Hi my PC is infected with a Trojan Virus and reboots as soon as the desktop is displayed. AVG detected the virus and gave the message:-

    C:\windows\system32\mydovstat.dll Trojan Backdoor afcore.bm

    but it cannot remove the file.

    I have read some existing posts and downloaded and scanned with Hijackthis here is the log.

    Logfile of HijackThis v1.97.7
    Scan saved at 18:01:28, on 24/06/2004
    Platform: Windows XP SP1 (WinNT 5.01.2600)
    MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

    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\system32\ntvdm.exe
    C:\Program Files\Internet Explorer\IEXPLORE.EXE
    C:\Downloads\Setup Files\Hijack This\HijackThis.exe

    R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.ntlworld.com/
    R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = 127.0.0.1
    O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
    O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
    O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
    O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
    O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
    O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
    O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\System32\NeroCheck.exe
    O4 - HKLM\..\Run: [EM_EXEC] C:\PROGRA~1\Logitech\MOUSEW~1\SYSTEM\EM_EXEC.EXE
    O4 - HKLM\..\Run: [Motive SmartBridge] C:\PROGRA~1\ntl\BROADB~1\SMARTB~1\MotiveSB.exe
    O4 - HKLM\..\Run: [Zone Labs Client] C:\PROGRA~1\ZONELA~1\ZONEAL~1\zlclient.exe
    O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
    O4 - HKLM\..\Run: [atwtusb] atwtusb.exe beta
    O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
    O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
    O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
    O4 - Startup: Event Reminder.lnk = C:\Program Files\Graphics Apps\Printmaster\PMREMIND.EXE
    O4 - Global Startup: KYESCAN.lnk = C:\Program Files\ScannerU\Kyescan.exe
    O4 - Global Startup: broadband medic.lnk = C:\Program Files\ntl\broadband medic\bin\matcli.exe
    O4 - Global Startup: Norton System Doctor.lnk = C:\Program Files\Norton Utilities\SYSDOC32.EXE
    O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
    O9 - Extra button: Messenger (HKLM)
    O9 - Extra 'Tools' menuitem: Messenger (HKLM)
    O16 - DPF: Yahoo! Pool 2 - http://download.games.yahoo.com/gam...ts/y/potd_x.cab
    O16 - DPF: {02BF25D5-8C17-4B23-BC80-D3488ABDDC6B} (QuickTime Object) - http://www.apple.com/qtactivex/qtplugin.cab
    O16 - DPF: {0E5F0222-96B9-11D3-8997-00104BD12D94} (PCPitstop Utility) - http://www.pcpitstop.com/pcpitstop/PCPitStop.CAB
    O16 - DPF: {11111111-1111-1111-1111-111111111123} - ms-its:mhtml:file://C:\bla.MHT!http://216.115.95.98//7ble.chm::/wincfgid.exe
    O16 - DPF: {33564D57-0000-0010-8000-00AA00389B71} - http://download.microsoft.com/downl...922/wmv9VCM.CAB
    O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/7/840/537/...all/xscan53.cab
    O16 - DPF: {80DD2229-B8E4-4C77-B72F-F22972D723EA} (AvxScanOnline Control) - http://www.bitdefender.com/scan/Msie/bitdefender.cab
    O16 - DPF: {9F1C11AA-197B-4942-BA54-47A8489BB47F} (Update Class) - http://v4.windowsupdate.microsoft.c...7988.2726967593
    O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/...ash/swflash.cab

    ps- this scan was done while in safe mode.
    please help.
     
  2. illukka

    illukka Spyware Fighter

    Joined:
    Jun 23, 2003
    Posts:
    633
    Location:
    S.A.V.O
    try this: click start > run> type in(copy/paste) the box rundll32:\C:\windows\system32:mydovstat.dll,Uninstall

    reboot into normal mode and do another scan with hjt and post a fresh log
     
  3. mikeymidge

    mikeymidge Registered Member

    Joined:
    Jun 24, 2004
    Posts:
    3
    Hi, thanks for replying. I managed to boot in normal mode after a system restore and followed your instructions but was told the parameter is incorrect. Did another scan while in normal mode here is the new Hijackthis log.


    Logfile of HijackThis v1.97.7
    Scan saved at 15:30:49, on 25/06/2004
    Platform: Windows XP SP1 (WinNT 5.01.2600)
    MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

    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\system32\spoolsv.exe
    C:\Program Files\Norton Utilities\NPROTECT.EXE
    C:\WINDOWS\System32\nvsvc32.exe
    C:\Program Files\Speed Disk\nopdb.exe
    C:\WINDOWS\system32\ZONELABS\vsmon.exe
    C:\WINDOWS\SOUNDMAN.EXE
    C:\PROGRA~1\ntl\BROADB~1\SMARTB~1\MotiveSB.exe
    C:\PROGRA~1\ZONELA~1\ZONEAL~1\zlclient.exe
    C:\WINDOWS\System32\atwtusb.exe
    C:\WINDOWS\System32\ctfmon.exe
    C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
    C:\WINDOWS\System32\TBLMOUSE.EXE
    C:\WINDOWS\system32\ntvdm.exe
    C:\Downloads\Setup Files\Hijack This\HijackThis.exe

    O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
    O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
    O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
    O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
    O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
    O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
    O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\System32\NeroCheck.exe
    O4 - HKLM\..\Run: [EM_EXEC] C:\PROGRA~1\Logitech\MOUSEW~1\SYSTEM\EM_EXEC.EXE
    O4 - HKLM\..\Run: [Motive SmartBridge] C:\PROGRA~1\ntl\BROADB~1\SMARTB~1\MotiveSB.exe
    O4 - HKLM\..\Run: [Zone Labs Client] C:\PROGRA~1\ZONELA~1\ZONEAL~1\zlclient.exe
    O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
    O4 - HKLM\..\Run: [atwtusb] atwtusb.exe beta
    O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
    O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
    O4 - Startup: Event Reminder.lnk = C:\Program Files\Graphics Apps\Printmaster\PMREMIND.EXE
    O4 - Global Startup: KYESCAN.lnk = C:\Program Files\ScannerU\Kyescan.exe
    O4 - Global Startup: broadband medic.lnk = C:\Program Files\ntl\broadband medic\bin\matcli.exe
    O4 - Global Startup: Norton System Doctor.lnk = C:\Program Files\Norton Utilities\SYSDOC32.EXE
    O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
    O9 - Extra button: Messenger (HKLM)
    O9 - Extra 'Tools' menuitem: Messenger (HKLM)
    O16 - DPF: Yahoo! Pool 2 - http://download.games.yahoo.com/games/clients/y/potd_x.cab
    O16 - DPF: {02BF25D5-8C17-4B23-BC80-D3488ABDDC6B} (QuickTime Object) - http://www.apple.com/qtactivex/qtplugin.cab
    O16 - DPF: {0E5F0222-96B9-11D3-8997-00104BD12D94} (PCPitstop Utility) - http://www.pcpitstop.com/pcpitstop/PCPitStop.CAB
    O16 - DPF: {11111111-1111-1111-1111-111111111123} - ms-its:mhtml:file://C:\bla.MHT!http://216.115.95.98//7ble.chm::/wincfgid.exe
    O16 - DPF: {33564D57-0000-0010-8000-00AA00389B71} - http://download.microsoft.com/download/F/6/E/F6E491A6-77E1-4E20-9F5F-94901338C922/wmv9VCM.CAB
    O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/7/840/537/2004061001/housecall.trendmicro.com/housecall/xscan53.cab
    O16 - DPF: {80DD2229-B8E4-4C77-B72F-F22972D723EA} (AvxScanOnline Control) - http://www.bitdefender.com/scan/Msie/bitdefender.cab
    O16 - DPF: {9F1C11AA-197B-4942-BA54-47A8489BB47F} (Update Class) - http://v4.windowsupdate.microsoft.com/CAB/x86/unicode/iuctl.CAB?37988.2726967593
    O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
     
    Last edited: Jun 25, 2004
  4. illukka

    illukka Spyware Fighter

    Joined:
    Jun 23, 2003
    Posts:
    633
    Location:
    S.A.V.O
    close all windows except hijackthis, tick the boxes net to these lines and click fix
    O16 - DPF: {11111111-1111-1111-1111-111111111123} - ms-its:mhtml:file://C:\bla.MHT!http://216.115.95.98//7ble.chm::/wincfgid.exe

    i don't see the afcore lines in the log, maybe your av fixed it
     
  5. mikeymidge

    mikeymidge Registered Member

    Joined:
    Jun 24, 2004
    Posts:
    3
    Hi, I have followed your above instructions and have also installed a trial version of AVG 7.0 which has quarantined the infected file(c:\windows\system32\mydovsat.dll) which I mispelt mysdovstat in first posts, sorry.
    Norton windoctor has noticed the file is missing and tells me my system may become unstable. In the past I have downloaded replacements for missing dll's but searches for this particular one gets no results.
    Also, Zone Alarm often tells me windows explorer is trying to access the internet and act as a server when I connect with internet Explorer (I deny it permission). Is this anything to with the problem or could there be a legitimate reason for this?
    mikeymidge
     
    Last edited: Jun 26, 2004
  6. dvk01

    dvk01 Global Moderator

    Joined:
    Oct 9, 2003
    Posts:
    3,131
    Location:
    Loughton, Essex. UK
    go to start run & type cmd, press return

    on the blacjk dos like screen that comes up paste this line & press rreturn and it should uninstall it for you

    rundll32 C:\WINDOWS\System32:mydovsat.dll,Uninstall

    and post a new hijackthis log please
     
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