Can some one please help me? My computer is infected by the virus : Bamital-AC

Inactive
By TonnyT
Dec 9, 2010
Topic Status:
Not open for further replies.
  1. Hi

    I need some help with my computer it is infected with the virus Win 32 : Bamital-AC.
    I have Avast as my virus protection however it is not getting rid of this virus.
    I did a full scan of my computer with Avast and these are the locations of the virus.

    C:\WINDOWS\explorer.exe
    C:\WINDOWS\system32\winlogon.exe

    can some one please assist me?
  2. Broni

    Broni Malware Annihilator Posts: 46,132   +251

    Welcome aboard [​IMG]

    Please, complete all steps listed here: http://www.techspot.com/vb/topic58138.html
    Make sure, you PASTE all logs. If some log exceeds 50,000 characters post limit, split it between couple of replies.
    Attached logs won't be reviewed.

    Please, observe following rules:
    • Read all of my instructions very carefully. Your mistakes during cleaning process may have very serious consequences, like unbootable computer.
    • If you're stuck, or you're not sure about certain step, always ask before doing anything else.
    • Please refrain from running tools or applying updates other than those I suggest.
    • Never run more than one scan at a time.
    • Keep updating me regarding your computer behavior, good, or bad.
    • The cleaning process, once started, has to be completed. Even if your computer appears to act better, it may still be infected. Once the computer is totally clean, I'll certainly let you know.
    • If you leave the topic without explanation in the middle of a cleaning process, you may not be eligible to receive any more help in malware removal forum.
    • I close my topics if you have not replied in 5 days. If you need more time, simply let me know. If I closed your topic and you need it to be reopened, simply PM me.
  3. TonnyT

    TonnyT Newcomer, in training Topic Starter Posts: 22

    step 2

    hey there thanks for replying

    i'm following the steps that you gave me.

    step one was to run a scan correct? i already did as said by my first post.

    i'm on step 2, however TFC is not working on my computer, it runs fine, but then it says i need to reboot the computer, so i reboot it and there are no changes to the desktop. Since there were no changes, i run TFC again and the same happens.

    Do you know what is going on?
  4. Broni

    Broni Malware Annihilator Posts: 46,132   +251

    Skip any step, you can't perform, BUT let me know about any problem.
  5. TonnyT

    TonnyT Newcomer, in training Topic Starter Posts: 22

    step 5

    hey again, i downloaded DDS per step 5 says.

    When i try to start the file i get an error message that says

    M:\dds.scr
    Access is denied.

    Do you know why it is doing this?
  6. Broni

    Broni Malware Annihilator Posts: 46,132   +251

    Please download ComboFix from Here or Here to your Desktop.

    **Note: In the event you already have Combofix, this is a new version that I need you to download. It is important that it is saved directly to your desktop**
    1. Please, never rename Combofix unless instructed.
    2. Close any open browsers.
    3. Close/disable all anti virus and anti malware programs so they do not interfere with the running of ComboFix.
      • Very Important! Temporarily disable your anti-virus, script blocking and any anti-malware real-time protection before performing a scan. They can interfere with ComboFix or remove some of its embedded files which may cause "unpredictable results".
      • Click on this link to see a list of programs that should be disabled. The list is not all inclusive. If yours is not listed and you don't know how to disable it, please ask.
      NOTE1. If Combofix asks you to install Recovery Console, please allow it.
      NOTE 2. If Combofix asks you to update the program, always do so.
      • Close any open browsers.
      • WARNING: Combofix will disconnect your machine from the Internet as soon as it starts
      • Please do not attempt to re-connect your machine back to the Internet until Combofix has completely finished.
      • If there is no internet connection after running Combofix, then restart your computer to restore back your connection.
    4. Double click on combofix.exe & follow the prompts.
    5. When finished, it will produce a report for you.
    6. Please post the "C:\ComboFix.txt"
    **Note 1: Do not mouseclick combofix's window while it's running. That may cause it to stall
    **Note 2 for AVG users: ComboFix will not run until AVG is uninstalled as a protective measure against the anti-virus. This is because AVG "falsely" detects ComboFix (or its embedded files) as a threat and may remove them resulting in the tool not working correctly which in turn can cause "unpredictable results". Since AVG cannot be effectively disabled before running ComboFix, the author recommends you to uninstall AVG first.
    Use AVG Remover to uninstall it: http://www.avg.com/us-en/download-tools
    We can reinstall it when we're done with CF.
    **Note 3: If you receive an error "Illegal operation attempted on a registery key that has been marked for deletion", restart computer to fix the issue.



    Make sure, you re-enable your security programs, when you're done with Combofix.

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    NOTE.
    If, for some reason, Combofix refuses to run, try one of the following:

    1. Run Combofix from Safe Mode.

    2. Delete Combofix file, download fresh one, but rename combofix.exe to your_name.exe BEFORE saving it to your desktop.
    Do NOT run it yet.

    Please download and run the below tool named Rkill (courtesy of BleepingComputer.com) which may help allow other programs to run.

    There are 4 different versions. If one of them won't run then download and try to run the other one.

    Vista and Win7 users need to right click Rkill and choose Run as Administrator

    You only need to get one of these to run, not all of them. You may get warnings from your antivirus about this tool, ignore them or shutdown your antivirus.

    Rkill.com
    Rkill.scr
    Rkill.pif
    Rkill.exe

    • Double-click on the Rkill desktop icon to run the tool.
    • If using Vista or Windows 7 right-click on it and choose Run As Administrator.
    • A black DOS box will briefly flash and then disappear. This is normal and indicates the tool ran successfully.
    • If not, delete the file, then download and use the one provided in Link 2.
    • If it does not work, repeat the process and attempt to use one of the remaining links until the tool runs.
    • Do not reboot until instructed.
    • If the tool does not run from any of the links provided, please let me know.

    Once you've gotten one of them to run, immediately run your_name.exe by double clicking on it.

    If normal mode still doesn't work, run BOTH tools from safe mode.

    In case #2, please post BOTH logs, rKill and Combofix.

    DO NOT make any other changes to your computer (like installing programs, using other cleaning tools, etc.), until it's officially declared clean!!!
  7. TonnyT

    TonnyT Newcomer, in training Topic Starter Posts: 22

    Gmer Log

    GMER 1.0.15.15530 - http://www.gmer.net
    Rootkit quick scan 2010-12-11 21:48:11
    Windows 5.1.2600 Service Pack 3 Harddisk0\DR0 -> \Device\Ide\IAAStorageDevice-0 ST325082 rev.3.AH
    Running: u9mu4xzr.exe; Driver: C:\DOCUME~1\HP_ADM~1\LOCALS~1\Temp\kwxyafob.sys


    ---- System - GMER 1.0.15 ----

    SSDT sptd.sys ZwEnumerateKey [0xF73D7FB2]
    SSDT sptd.sys ZwEnumerateValueKey [0xF73D8340]

    Code \SystemRoot\System32\Drivers\aswSP.SYS (avast! self protection module/AVAST Software) ZwCreateProcessEx [0xA964DBAE]
    Code \SystemRoot\System32\Drivers\aswSP.SYS (avast! self protection module/AVAST Software) ZwCreateSection [0xA964D9D2]
    Code \SystemRoot\System32\Drivers\aswSP.SYS (avast! self protection module/AVAST Software) ZwLoadDriver [0xA964DB0C]
    Code \SystemRoot\System32\Drivers\aswSP.SYS (avast! self protection module/AVAST Software) NtCreateSection
    Code \SystemRoot\System32\Drivers\aswSP.SYS (avast! self protection module/AVAST Software) ObInsertObject
    Code \SystemRoot\System32\Drivers\aswSP.SYS (avast! self protection module/AVAST Software) ObMakeTemporaryObject

    ---- Devices - GMER 1.0.15 ----

    Device \Driver\iaStor \Device\Ide\iaStor0 86FD01E8
    Device \Driver\atapi \Device\Ide\IdeDeviceP0T0L0-3 [F7250B40] atapi.sys[unknown section] {MOV EDX, [ESP+0x8]; LEA ECX, [ESP+0x4]; PUSH EAX; MOV EAX, ESP; PUSH EAX}
    Device \Driver\atapi \Device\Ide\IdePort0 [F7250B40] atapi.sys[unknown section] {MOV EDX, [ESP+0x8]; LEA ECX, [ESP+0x4]; PUSH EAX; MOV EAX, ESP; PUSH EAX}
    Device \Driver\iaStor \Device\Ide\IAAStorageDevice-0 86FD01E8
    Device \Driver\aty2jun5 \Device\Scsi\aty2jun51Port2Path0Target1Lun0 861F65F8
    Device \Driver\aty2jun5 \Device\Scsi\aty2jun51 861F65F8
    Device \Driver\aty2jun5 \Device\Scsi\aty2jun51Port2Path0Target0Lun0 861F65F8
    Device \FileSystem\Ntfs \Ntfs aswSP.SYS (avast! self protection module/AVAST Software)
    Device \FileSystem\Ntfs \Ntfs 86FCE1E8

    AttachedDevice \FileSystem\Ntfs \Ntfs bb-run.sys (Promise Disk Accelerator/Promise Technology, Inc.)
    AttachedDevice \FileSystem\Ntfs \Ntfs SYMEVENT.SYS (Symantec Event Library/Symantec Corporation)
    AttachedDevice \FileSystem\Ntfs \Ntfs aswMon2.SYS (avast! File System Filter Driver for Windows XP/AVAST Software)

    Device \FileSystem\Fastfat \Fat aswSP.SYS (avast! self protection module/AVAST Software)
    Device \FileSystem\Fastfat \Fat 860FF250

    AttachedDevice \FileSystem\Fastfat \Fat bb-run.sys (Promise Disk Accelerator/Promise Technology, Inc.)
    AttachedDevice \FileSystem\Fastfat \Fat fltmgr.sys (Microsoft Filesystem Filter Manager/Microsoft Corporation)
    AttachedDevice \FileSystem\Fastfat \Fat SYMEVENT.SYS (Symantec Event Library/Symantec Corporation)
    AttachedDevice \FileSystem\Fastfat \Fat aswMon2.SYS (avast! File System Filter Driver for Windows XP/AVAST Software)
    AttachedDevice \Driver\Tcpip \Device\Ip SYMTDI.SYS (Network Dispatch Driver/Symantec Corporation)
    AttachedDevice \Driver\Tcpip \Device\Ip aswRdr.SYS (avast! TDI RDR Driver/AVAST Software)
    AttachedDevice \Driver\Tcpip \Device\Ip aswTdi.SYS (avast! TDI Filter Driver/AVAST Software)
    AttachedDevice \Driver\Tcpip \Device\Tcp aswTdi.SYS (avast! TDI Filter Driver/AVAST Software)
    AttachedDevice \Driver\Tcpip \Device\Tcp SYMTDI.SYS (Network Dispatch Driver/Symantec Corporation)
    AttachedDevice \Driver\Tcpip \Device\Tcp aswRdr.SYS (avast! TDI RDR Driver/AVAST Software)
    AttachedDevice \Driver\Tcpip \Device\Udp aswTdi.SYS (avast! TDI Filter Driver/AVAST Software)
    AttachedDevice \Driver\Tcpip \Device\Udp SYMTDI.SYS (Network Dispatch Driver/Symantec Corporation)
    AttachedDevice \Driver\Tcpip \Device\Udp aswRdr.SYS (avast! TDI RDR Driver/AVAST Software)
    AttachedDevice \Driver\Tcpip \Device\RawIp aswTdi.SYS (avast! TDI Filter Driver/AVAST Software)
    AttachedDevice \Driver\Tcpip \Device\RawIp SYMTDI.SYS (Network Dispatch Driver/Symantec Corporation)

    ---- EOF - GMER 1.0.15 ----
  8. TonnyT

    TonnyT Newcomer, in training Topic Starter Posts: 22

    Hey, i'm afraid to run ComboFix because my computer has Norton running, i've tried to disable it but i can't open it for some reason, i've tried to start it 10 times over. i've also tried to remove it using add/remove programs, Norton doesn't show up on the list. Also i tried to remove it using ccleaner and that can't uninstall it either. Should i run ComboFix anyway? or can you suggest a way to get rid of norton?
  9. Broni

    Broni Malware Annihilator Posts: 46,132   +251

    Run Combofix from safe mode and disregard any warnings.
  10. Broni

    Broni Malware Annihilator Posts: 46,132   +251

    Reopened on user request...
  11. TonnyT

    TonnyT Newcomer, in training Topic Starter Posts: 22

    Hey, my computer is now acting strange. I can start it up fine but after that it just shows my background, no icons or anything. I tried to open Explorer using windows task manager but it keeps giving me error messages. Do you have any advice?
     
  12. Broni

    Broni Malware Annihilator Posts: 46,132   +251

    Yeah, these two files are infected by Bamital:
    C:\WINDOWS\explorer.exe
    C:\WINDOWS\system32\winlogon.exe
    That's why.

    With that kind of infection, you can't just wait for days, hoping, it'll cure itself.
    It'll only get worse.

    Let's see, if we can look at your computer booting from an external source.

    Please download OTLPE (filesize 120,9 MB)

    • When downloaded double click on OTLPENet.exe and make sure there is a blank CD in your CD drive. This will automatically create a bootable CD.
    • Reboot your system using the boot CD you just created.
      • Note : If you do not know how to set your computer to boot from CD follow the steps here
    • Your system should now display a REATOGO-X-PE desktop.
    • Depending on your type of internet connection, you should be able to get online as well so you can access this topic more easily.
    • Double-click on the OTLPE icon.
    • When asked Do you wish to load the remote registry, select Yes
    • When asked Do you wish to load remote user profile(s) for scanning, select Yes
    • Ensure the box Automatically Load All Remaining Users" is checked and press OK
    • OTL should now start.
    • Under the Custom Scan box paste this in:

      /md5start
      explorer.exe
      winlogon.exe
      /md5stop

    • Press Run Scan to start the scan.
    • When finished, the file will be saved in drive C:\OTL.txt
    • Copy this file to your USB drive if you do not have internet connection on this system
    • Please post the contents of the OTL.txt file in your reply.
  13. TonnyT

    TonnyT Newcomer, in training Topic Starter Posts: 22

    Don't i need a CD burner for that?
  14. Broni

    Broni Malware Annihilator Posts: 46,132   +251

    Yes.........
  15. TonnyT

    TonnyT Newcomer, in training Topic Starter Posts: 22

    The laptop i'm working on while my computer is out doesn't have a CD burner built in.
  16. Broni

    Broni Malware Annihilator Posts: 46,132   +251

    I'm afraid you'll have to ask a friend, or family member to burn the CD for you.
    I don't see any other way.
  17. Broni

    Broni Malware Annihilator Posts: 46,132   +251

    Reopened....
  18. TonnyT

    TonnyT Newcomer, in training Topic Starter Posts: 22

    My computer is back to "normal", should i run ComboFix now?
     
  19. Broni

    Broni Malware Annihilator Posts: 46,132   +251

    What happened? What did you do?
  20. TonnyT

    TonnyT Newcomer, in training Topic Starter Posts: 22

    I'm not exactly sure. You gave me OTLPE because explorer wouldn't boot up correct?

    I finally found someone to burn the CD for me, so i turned on the computer to use the CD and explorer works now for odd reason.

    Although the virus are still on it. Hense "normal" in quotes.
  21. Broni

    Broni Malware Annihilator Posts: 46,132   +251

    Well, good news then :)

    Please download ComboFix from Here or Here to your Desktop.

    **Note: In the event you already have Combofix, this is a new version that I need you to download. It is important that it is saved directly to your desktop**
    1. Please, never rename Combofix unless instructed.
    2. Close any open browsers.
    3. Close/disable all anti virus and anti malware programs so they do not interfere with the running of ComboFix.
      • Very Important! Temporarily disable your anti-virus, script blocking and any anti-malware real-time protection before performing a scan. They can interfere with ComboFix or remove some of its embedded files which may cause "unpredictable results".
      • Click on this link to see a list of programs that should be disabled. The list is not all inclusive. If yours is not listed and you don't know how to disable it, please ask.
      NOTE1. If Combofix asks you to install Recovery Console, please allow it.
      NOTE 2. If Combofix asks you to update the program, always do so.
      • Close any open browsers.
      • WARNING: Combofix will disconnect your machine from the Internet as soon as it starts
      • Please do not attempt to re-connect your machine back to the Internet until Combofix has completely finished.
      • If there is no internet connection after running Combofix, then restart your computer to restore back your connection.
    4. Double click on combofix.exe & follow the prompts.
    5. When finished, it will produce a report for you.
    6. Please post the "C:\ComboFix.txt"
    **Note 1: Do not mouseclick combofix's window while it's running. That may cause it to stall
    **Note 2 for AVG users: ComboFix will not run until AVG is uninstalled as a protective measure against the anti-virus. This is because AVG "falsely" detects ComboFix (or its embedded files) as a threat and may remove them resulting in the tool not working correctly which in turn can cause "unpredictable results". Since AVG cannot be effectively disabled before running ComboFix, the author recommends you to uninstall AVG first.
    Use AppRemover to uninstall it: http://www.appremover.com/
    We can reinstall it when we're done with CF.
    **Note 3: If you receive an error "Illegal operation attempted on a registery key that has been marked for deletion", restart computer to fix the issue.



    Make sure, you re-enable your security programs, when you're done with Combofix.

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    NOTE.
    If, for some reason, Combofix refuses to run, try one of the following:

    1. Run Combofix from Safe Mode.

    2. Delete Combofix file, download fresh one, but rename combofix.exe to your_name.exe BEFORE saving it to your desktop.
    Do NOT run it yet.

    Please download and run the below tool named Rkill (courtesy of BleepingComputer.com) which may help allow other programs to run.

    There are 4 different versions. If one of them won't run then download and try to run the other one.

    Vista and Win7 users need to right click Rkill and choose Run as Administrator

    You only need to get one of these to run, not all of them. You may get warnings from your antivirus about this tool, ignore them or shutdown your antivirus.

    Rkill.com
    Rkill.scr
    Rkill.exe

    • Double-click on the Rkill desktop icon to run the tool.
    • If using Vista or Windows 7 right-click on it and choose Run As Administrator.
    • A black DOS box will briefly flash and then disappear. This is normal and indicates the tool ran successfully.
    • If not, delete the file, then download and use the one provided in Link 2.
    • If it does not work, repeat the process and attempt to use one of the remaining links until the tool runs.
    • Do not reboot until instructed.
    • If the tool does not run from any of the links provided, please let me know.

    Once you've gotten one of them to run, immediately run your_name.exe by double clicking on it.

    If normal mode still doesn't work, run BOTH tools from safe mode.

    In case #2, please post BOTH logs, rKill and Combofix.

    DO NOT make any other changes to your computer (like installing programs, using other cleaning tools, etc.), until it's officially declared clean!!!
  22. TonnyT

    TonnyT Newcomer, in training Topic Starter Posts: 22

    Sorry for being a hassle, my computer is acting like the way it was in my previous post. With explorer not running, I've turned on and off about 15 times now.I can't seem to get explorer to work again.

    should i use OTLPE?
  23. Broni

    Broni Malware Annihilator Posts: 46,132   +251

    Follow instructions from my reply #12.
  24. TonnyT

    TonnyT Newcomer, in training Topic Starter Posts: 22

  25. Broni

    Broni Malware Annihilator Posts: 46,132   +251

    This is the very 1st screen you see. Look at the bottom of the screen.
    It should say something like:
    Press <some key> to enter setup
Topic Status:
Not open for further replies.


Add New Comment

TechSpot Members
Login or sign up for free,
it takes about 30 seconds.
You may also...


Get complete access to the TechSpot community. Join thousands of technology enthusiasts that contribute and share knowledge in our forum. Get a private inbox, upload your own photo gallery and more.