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Unknown Backdoor.Trojan

Discussion in 'Virus & Other Malware Removal' started by Patollo, Oct 10, 2003.

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  1. Patollo

    Patollo Thread Starter

    Joined:
    Aug 7, 2003
    Messages:
    5
    Hi, I got a general Backdoor.Trojan virus today. I quarantined the file through Norton Online Scanning, since the virus apparently blocked my AV on my computer. I have ZoneAlarm firewall and it keeps asking me if I want to give taskmgr.exe and rundll32.exe access to the internet and to be a server. I can no longer send or recieve email through Outlook Express, it says "No, Socket Error: 10061" and some other stuff. The virus was found to be "Backdoor.Trojan" which is too general to find a tool to help me. The virus was also found in the file "C:\Windows\rundll32.exe". I'm running XP, so the valid rundll32.exe is found in my system32 folder.

    Any indea out there??? Please....
     
  2. BillC

    BillC

    Joined:
    May 28, 2003
    Messages:
    2,366
    Maybe if you try to run your Norton antivirus in the safe mode, you can get it to function? You will also want to turn off system restore during the process.

    Have you read through all the info at Symantec's Security Responce page on Backdoor.Trojan?

    I'm not sure this will be helpful and you may have already tried theses things, but it is worth the try. It's an idea anyway. :)
     
  3. dvk01

    dvk01 Moderator Malware Specialist

    Joined:
    Dec 14, 2002
    Messages:
    56,187
    First Name:
    Derek
    go to http://www.spywareinfo.com/~merijn/files/hijackthis.zip , and download 'Hijack This!'.
    Unzip, doubleclick HijackThis.exe, and hit "Scan".

    When the scan is finished, the "Scan" button will change into a "Save Log" button.
    Press that, save the log somewhere, and please copy & paste its contents to the forum.

    It will possibly show issues deserving our attention, but most of what it lists will be harmless or

    even required, so do NOT fix anything yet.
    Someone here will be happy to help you analyze the results.
     
  4. Patollo

    Patollo Thread Starter

    Joined:
    Aug 7, 2003
    Messages:
    5
    I can't even get into safe mode right now, and when I try to run Norton, it just shuts down...

    Unfortunately I have already deleted some of the entries from HJT, but I'm 99.9% sure they were related to the problem.

    Here is the log...

    Logfile of HijackThis v1.97.3
    Scan saved at 4:25:50 PM, on 10/10/2003
    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\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\Explorer.EXE
    C:\WINDOWS\system32\spoolsv.exe
    C:\WINDOWS\System32\rundlI32.exe
    C:\Program Files\MSN Messenger\MsnMsgr.Exe
    C:\windows\taskmgr.exe
    C:\Program Files\jetsuite\JETSTAT.EXE
    C:\Program Files\Java\j2re1.4.2_01\bin\jusched.exe
    C:\WINDOWS\System32\CTHELPER.EXE
    C:\WINDOWS\System32\rundll32.exe
    C:\WINDOWS\System32\devldr32.exe
    C:\Program Files\jetsuite\jsdaemon.exe
    C:\WINDOWS\system32\ZoneLabs\vsmon.exe
    C:\WINDOWS\System32\taskmgr.exe
    C:\Program Files\Internet Explorer\iexplore.exe
    C:\Program Files\Internet Explorer\iexplore.exe
    C:\Documents and Settings\Ken\Local Settings\Temp\Temporary Directory 3 for hijackthis.zip\HijackThis.exe

    R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com/
    R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = libproxy.uvic.ca:8080
    O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
    O2 - BHO: PK IE Plugin - {1E1B2879-88FF-11D3-8D96-D7ACAC95951A} - C:\WINDOWS\System32\RUNDLI~2.DLL
    O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton AntiVirus\NavShExt.dll
    O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
    O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton AntiVirus\NavShExt.dll
    O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
    O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
    O4 - HKLM\..\Run: [Zone Labs Client] C:\PROGRA~1\Zone Labs\ZoneAlarm\zapro.exe
    O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_01\bin\jusched.exe
    O4 - HKLM\..\Run: [WINDVDPatch] CTHELPER.EXE
    O4 - HKLM\..\Run: [Jet Detection] "C:\Program Files\Creative\SBLive\PROGRAM\ADGJDet.exe"
    O4 - HKLM\..\Run: [NAV Agent] C:\PROGRA~1\NORTON~1\navapw32.exe
    O4 - HKCU\..\Run: [NVIEW] rundll32.exe nview.dll,nViewLoadHook
    O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
    O4 - Global Startup: DllCmd32.lnk = C:\Program Files\jetsuite\DLLCMD32.EXE
    O4 - Global Startup: HP LaserJet 3100 Status.lnk = C:\Program Files\jetsuite\JETSTAT.EXE
    O4 - Global Startup: ZoneAlarm Pro.lnk = C:\Program Files\Zone Labs\ZoneAlarm\zapro.exe
    O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
    O9 - Extra 'Tools' menuitem: Sun Java Console (HKLM)
    O9 - Extra button: Related (HKLM)
    O9 - Extra 'Tools' menuitem: Show &Related Links (HKLM)
    O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) - http://security.symantec.com/sscv6/SharedContent/vc/bin/AvSniff.cab
    O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common/bin/cabsa.cab
    O16 - DPF: {9F1C11AA-197B-4942-BA54-47A8489BB47F} (Update Class) - http://v4.windowsupdate.microsoft.com/CAB/x86/unicode/iuctl.CAB?37892.7692824074
    O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
     
  5. Patollo

    Patollo Thread Starter

    Joined:
    Aug 7, 2003
    Messages:
    5
    Also, if it helps, I have two "taskmgr.exe" running at one time...
     
  6. kaspersky

    kaspersky

    Joined:
    Sep 10, 2003
    Messages:
    76
    rundlI32.exe

    note this!!!!
    rundll32.exe vs rundlI32.exe:D
     
  7. dvk01

    dvk01 Moderator Malware Specialist

    Joined:
    Dec 14, 2002
    Messages:
    56,187
    First Name:
    Derek
    open HJT then press config/backups/ select everything and press restore then post a full hjt log so we can see what we are dealing with

    you might have removed the hjt entries but have probably left the infected files and they will still cause problems. unfortunately without the start ups we can't tell which files they are
     
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