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Help with Black Internet trojan

Discussion in 'Malware Help - MG (A Specialist Will Reply)' started by cachito, Jun 18, 2010.

  1. cachito

    cachito Private E-2

  2. dr.moriarty

    dr.moriarty Malware Super Sleuth Staff Member

    Please note that ALL thread replies are tailored for each user's machine. Using fixes given for someone can result in an unusable machine.

    Read ALL of this message including the notes before doing anything.

    Please follow the instructions in the below link:

    READ & RUN ME FIRST. Malware Removal Guide


    and then attach the requested logs to your next reply when you finish these instructions.
    • **** If something does not run, write down the info to explain to us later but keep on going. ****
    • Do not assume that because one step does not work that they all will not. MGtools will frequently run even when all other tools will not.
    • After completing the READ & RUN ME and attaching your logs, make sure that you tell us what problems still remain ( if any still do )!
    Helpful Notes:

    1. If you run into problems trying to run the READ & RUN ME or any of the scans in normal boot mode, you can run the steps in safe boot mode but make sure you tell us what you did later when you post logs. See the below if you do not know how to boot in safe mode:
    2. If you have problems downloading on the problem PC, download the tools and the manual updates for SUPERAntiSpyware and Malwarebytes ( links are given in the READ & RUN ME) onto another PC and then burn to a CD. Then copy them to the problem PC. You will have to skip getting updates if (and only if) your internet connection does not work. Yes you could use a flash drive too but flash drives are writeable and infections can spread to them.
    3. If you cannot seem to login to an infected user account, try using a different user account (if you have one) in either normal or safe boot mode and running only SUPERAntiSpyware and Malwarebytes while logged into this other user account. Then reboot and see if you can log into the problem user account. If you can then run SUPERAntiSpyware, Malwarebytes, ComboFix and MGtools on the infected account as requested in the instructions.
    4. To avoid additional delay in getting a response, it is strongly advised that after completing the READ & RUN ME you also read this sticky:
    * Any additional post is a bump which will add more delay. Once you attach the logs, your thread will be in the work queue and as stated our system works the oldest threads FIRST.
     
  3. cachito

    cachito Private E-2

    I've followed all the procedures you mentioned, and I still have a fake smss.exe and a service.exe running (and detected by Avira, which cannot delete them; it can only change the names of the files, and they restart every time I reboot).

    I attach the logs here.

    Thanks a million for any help!
     

    Attached Files:

  4. dr.moriarty

    dr.moriarty Malware Super Sleuth Staff Member

    You were instructed in the R & R to only run the scanners one time. Please attach the below logs so I can see what they detected.
    dr.m
     
  5. dr.moriarty

    dr.moriarty Malware Super Sleuth Staff Member

    Hello, cachito

    Step 1:
    Please run the AVG Remover(32bit) from following link > reboot > run it again.
    http://www.avg.com/us-en/download-tools

    Step 2:
    Run C:\MGtools\analyse.exe by double clicking on it (Note: if using Vista, don't double click, use right click and select Run As Administrator). This is really HijackThis (select Do a system scan only) and select the following lines but DO NOT CLICK FIX until you exit all browser sessions including the one you are reading in right now:
    After clicking Fix, exit HJT.

    Step 3:
    Now we need to use ComboFix.
    • Make sure that combofix.exe that you downloaded while doing the READ & RUN ME is on your Desktop but Do not run it!
      • If it is not on your Desktop, the below will not work.
    • Make sure you have shut down all protection software (antivirus, antispyware, firewall...etc) programs so they do not interfere with the running of ComboFix. *Remember to re-start them before coming back online.
    • If ComboFix tells you it needs to update to a new version, make sure you allow it to update.
    • Open Notepad and copy/paste the text inside of the below code box into it (make sure you scroll all the way down in the code box to get all lines selected ):
    • Save the above as CFscript.txt and make sure you save it to the same location (should be on your Desktop) as ComboFix.exe
    • At this point, you MUST EXIT ALL BROWSERS NOW before continuing!
    • You should have both the ComboFix.exe and CFScript.txt icons on your Desktop.
      If it asks you to overide the previous file with the same name, click YES.
    • Now use your mouse to drag CFscript.txt on top of ComboFix.exe
      [​IMG]
    • Follow the prompts.
    • When it finishes, a log will be produced named c:\combofix.txt
    • I will ask for this log below

    Note:
    Do not mouseclick combofix's window while it is running. That may cause it to stall.


    Step 4:
    Open CCleaner - select "Cleaner" > "Run Cleaner" <---use this function ONLY!

    Step 5:
    Now run the below and attach the log from GMER:

    GMER - running with a random name

    Step 6:
    Then run the C:\MGtools\GetLogs.bat file by double clicking on it (Note: if using Vista or Windows 7, use right click and select Run As Administrator).

    Please attach the new C:\MGlogs.zip and the GMER log files to your next reply.

    * Make sure you tell me if you had any problems running this procedure. Is Avira AntiVir Personal still detecting and quarantining anything? What malware problems are you still experiencing?

    dr.m
     
  6. cachito

    cachito Private E-2


    - Sorry; I've been running all kinds of anti-malware and antivirus software for the last 10 days. I thought I had saved the last run and attached it; here are the ones you asked for.

    Thanks again!
     

    Attached Files:

  7. cachito

    cachito Private E-2

    I followed up the steps.

    - GMER crashed while I was running (the whole computer froze). After rebooting and running, it finished correctly (logs attached).

    - GetLogs.bat stalled, and after running it again, it completed successfully (logs attached).

    - Also attached is the result of ComboFix.

    Thanks!!!
     

    Attached Files:

  8. dr.moriarty

    dr.moriarty Malware Super Sleuth Staff Member

    Hello, cachito

    Please download HelpAsst_mebroot_fix.exe by noahdfear and save it to your Desktop
    • Double click HelpAsst_mebroot_fix.exe to run it and follow any prompts.
      • If the tool detects an mbr infection
        • please allow it to run mbr -f and shutdown your computer.
        • Upon restarting, please wait about 5 minutes after bootup, and then click Start>Run and type the following bolded command, then hit Enter.
          • helpasst -mbrt
        • Make sure you leave a space between helpasst and -mbrt
        • When it completes, a log will open.
        • Attach this log to your next message.
      • If the tool DOES NOT detect an mbr infection and completes running:
        • Click Start>Run and type the following bolded command, then hit Enter.
          • mbr -f
        • Make sure you leave a space between mbr and the -f
        • Now, please do the Start>Run>mbr -f command a second time.
        • Now shut down the computer (do not restart, you must shut it down), wait a few minutes then start it back up.
        • Give it about 5 minutes after the bootup and then click Start>Run and type the following bolded command, then hit Enter.
          • helpasst -mbrt
        • Make sure you leave a space between helpasst and -mbrt
        • When it completes, a log will open.
        • Attach this log to your next message.
    No matter what happens with the above, attach the above logs and then immediately continue with the below in normal boot mode!

    Now download The Avenger by Swandog46, and save it to your Desktop.
    • Extract avenger.exe from the Zip file and save it to your desktop
    • Run avenger.exe by double-clicking on it.
    • Do not change any check box options!!
    • Copy everything in the Quote box below, and paste it into the Input script here: part of the window:
    **Important note to Dell users - fixing the mbr may prevent access the the Dell Restore Utility, which allows you to press a key on startup and revert your computer to a factory delivered state. There are a couple of known fixes for said condition, though the methods are somewhat advanced. If you are unwilling to take such a risk, you should not allow the tool to execute mbr -f nor execute the command manually, and you will either need to restore your computer to a factory state or allow your computer to remain having an infected mbr (the latter not recommended).

    • Now click the Execute button.
    • Click Yes to the prompt to confirm you want to execute.
    • Click Yes to the Reboot now? question that will appear when Avenger finishes running.
    • Your PC should reboot, if not, reboot it yourself.
    • A log file from Avenger will be produced at C:\avenger.txt and it will popup for you to view when you login after reboot.
    Now run Ccleaner. Only use the Run Cleaner button. Do not run anything else on any other forms.

    Now run the C:\MGtools\GetLogs.bat file by double clicking on it (Note: if using Vista, don't double click, use right click and select Run As Administrator).

    Please attach these new logs:
    • C:\MGlogs.zip
    • C:\avenger.txt
    • HelpAsst.log

    * Make sure you tell me if you had any problems running this procedure; and answer this - "What malware problems are you still experiencing?"

    dr.m
     
  9. cachito

    cachito Private E-2

    I run the steps; avenger.exe tells the two files have been deleted, but they are still there (and Avira still detects them and cannot delete them or quarantine them; the only thing it allows to do is to change their names, and after rebooting they appear again).

    Logs attached here.

    Thanks!
     

    Attached Files:

  10. dr.moriarty

    dr.moriarty Malware Super Sleuth Staff Member

    Hello, cachito

    Okay, we'll try it this way:

    How to disable System Restore:
    1. Right click on the My Computer icon on your desktop and select "Properties".
    2. Click on the "System Restore" tab.
    3. Check the box that says "Turn off system restore on all drives". Click OK.
    4. * Make sure that you restart/reboot the computer afterwards!

    Now use Avenger that was previously downloaded.
    • Run avenger.exe again by double-clicking on it.
    • Do not change any check box options!!
    • Copy everything in the Quote box below, and paste it into the Input script here: part of the window:
    • Now click the Execute button.
    • Click Yes to the prompt to confirm you want to execute.
    • Click Yes to the "Reboot now?" question that will appear when Avenger finishes running.
    • Your PC should reboot, if not, reboot it yourself.
    • A log file from Avenger will be produced at C:\avenger.txt and it will popup for you to view when you login after reboot.
    Now run Ccleaner. Only use the "Run Cleaner" button. Do not run anything else on any other forms.

    Now run the C:\MGtools\GetLogs.bat file by double clicking on it (Note: if using Vista, don't double click, use right click and select Run As Administrator).

    Please attach the new C:\MGlogs.zip file to your next reply.

    * Describe any problems running this procedure; and answer this - "What malware problems are you still experiencing?"

    dr.m
     
  11. cachito

    cachito Private E-2

    I tried that yesterday (with the System Restore on and off). When I turned it off, it crashed while booting - Windows logged in but did not respond; task manager wasn't even able to run -). After 1/2 hour, I turned the computer off, and after rebooting I got a blue screen.

    I'll try again and will send you the logs, but I tried that already...

    Thanks again!!!
     
  12. cachito

    cachito Private E-2

    I've run the tests; there was no problems (but the 2 files are there, and the Microsoft folder too).

    My System Recover is turned off.
     

    Attached Files:

  13. dr.moriarty

    dr.moriarty Malware Super Sleuth Staff Member

    Hello, cachito

    Let me see if this tool will shed some light.

    * With your "System Restore" still disabled - log into an "Administrator's" account and follow these steps:

    FIRST - download and install ERUNT. Use it to create a backup of your registry to the folder of your choice.

    Next, download bootkitremover.rar and save it to your desktop.
    • You then need to extract the remover.exe file from the RAR using a program capable of extracing RAR compressed files. If you don't have an extraction program, you can use 7-Zip
    • After extracing remover.exe to your Desktop, double-click the remover.exe file to run the program.
    • Attach or post inline here, the output from remover.exe
     
    Last edited: Jun 23, 2010
  14. cachito

    cachito Private E-2

    Bootkit Remover version 1.0.0.1
    (c) 2009 eSage Lab
    www.esagelab.com

    \\.\C: -> \\.\PhysicalDrive0
    MD5: 59c3213fd45d4d904524d0bb027611f7

    Size Device Name MBR Status
    --------------------------------------------
    74 GB \\.\PhysicalDrive0 Unknown boot code

    Unknown boot code has been found on some of your physical disks.
    To inspect the boot code manually, dump the master boot sector:
    remover.exe dump <device_name> [output_file]
    To disinfect the master boot sector, use the following command:
    remover.exe fix <device_name>


    Press any key to quit...


    Thanks!
     
  15. dr.moriarty

    dr.moriarty Malware Super Sleuth Staff Member

    :)

    Making some progress, cachito.

    *Now - please do the following:

    • Click Start, Run then copy and paste the below into the Run box and click OK.
    "%userprofile%\Desktop\remover.exe" fix \\.\PhysicalDrive0 %userprofile%\bkrlog.txt

    • Now reboot your PC and after reboot continue with the below instructions.
    • Now run the C:\MGtools\GetLogs.bat file by double clicking on it (Note: if using Vista or Win7, don't double click, use right click and select Run As Administrator).

      Then attach the below logs:
      • the bkrlog.txt file created in your root folder which is C:\
      • C:\MGlogs.zip

      **Make sure you tell me how things are working now!
     
    Last edited: Jun 23, 2010
  16. cachito

    cachito Private E-2

    This is the result of Bootkit. The second Zip attached.

    It seems it's gone! (Avira allowed me to change the name, and then I could delete it from the folder, and the Microsoft folder is gone too)


    Bootkit Remover version 1.0.0.1
    (c) 2009 eSage Lab
    www.esagelab.com

    \\.\C: -> \\.\PhysicalDrive0
    MD5: 6def5ffcbcdbdb4082f1015625e597bd

    Size Device Name MBR Status
    --------------------------------------------
    74 GB \\.\PhysicalDrive0 OK (DOS/Win32 Boot code found)


    Press any key to quit...
     

    Attached Files:

  17. dr.moriarty

    dr.moriarty Malware Super Sleuth Staff Member

    ;)

    Congrats, cachito - your logs look good!

    If you are not having any other malware problems, it is time to do our final steps:
    1. We recommend you keep SUPERAntiSpyware and Malwarebytes Anti-Malware for scanning/removal of malware. Unless you purchase them, they provide no protection. They do not use any significant amount of resources ( except a little disk space ) until you run a scan.
    2. If we had you use ComboFix, uninstall ComboFix (This uninstall will only work as written if you installed ComboFix on your Desktop like we requested.)
      • Click START then RUN and enter the below into the run box and then click OK. Note the quotes are required
      • "%userprofile%\Desktop\combofix" /uninstall
        • Notes: The space between the combofix" and the /uninstall, it must be there.
        • This will uninstall ComboFix and also reset hidden files and folders settings back to Windows defaults.
    3. Go back to step 6 of the READ ME and re-enable your Disk Emulation software with Defogger if you had disabled it.
    4. Any other miscellaneous tools we may have had you install or download can be uninstalled and deleted.
    5. If we had you download any registry patches like fixme.reg or fixWLK.reg (or any others), you can delete these files now.
    6. If running Vista, it is time to make sure you have re-enabled UAC by double clicking on the C:\MGtools\enableUAC.reg file and allowing it to be added to the registry.
    7. Go to add/remove programs and uninstall HijackThis.
    8. Goto the C:\MGtools folder and find the MGclean.bat file. Double click on this file to run this cleanup program that will remove files and folders
      related to MGtools and some other items from our cleaning procedures.
    9. If you are running Win 7, Vista, Windows XP or Windows ME, do the below:
      • Refer to the cleaning procedures pointed to by step 7 of the READ ME
        for your Window version and see the instructions to Disable System Restore which will flush your Restore Points.
      • Then reboot and Enable System Restore to create a new clean Restore Point.
    10. After doing the above, you should work thru the below link:
    Safe surfing! [​IMG]
     
  18. cachito

    cachito Private E-2

    THANKS A MILLION!

    One last question: do you know what this trojan does? Anything might have been damaged? It collects information? I could not find anything about it anywhere.

    thanks!
     

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