A frustrated Scot...

Discussion in 'Malware Help (A Specialist Will Reply)' started by Jaffacake, Jul 13, 2005.

  1. Jaffacake

    Jaffacake Private E-2

    I've been working on this for a few days now, with little success. The moral of the story is not to let your dad on to your computer unsupervised.

    Specs: WinXP (fully updated). Was using AVG Free and Microsoft Antispyware before attack (i've learned my lesson now).

    Anyway, the problem is that when Windows loads, an "Explorer has encountered a problem and needs to close" dialogue box pops up, and will reappear no matter what decision is taken. This also occurs in safe mode too. Occasionally (but not always) a "DrWatson postmortem debugger has encountered a problem..." pops up too, crashing windows.

    I suspect this could be something you have encountered before, but i wasnt able to find anything similar in your forums (my apologies if I missed it!)

    I've followed your FAQ thread, and scanned the computer wil all of the programs listed (including a favourite of mine, Panda Activescan), with the net result being that i've rid my computer of every trojan except the one that actually bothers me.

    I've also done a hijackthis scan in safe mode, and have it to hand, if you need it. I followed your thread on that too, but any (obvious) repairs have made made no difference.

    Any initial ideas? Your help will be grately appreciated...
     
  2. Jaffacake

    Jaffacake Private E-2

    OK im going to be naughty and post the log file, although it hasnt been asked for...

    Could it be the q211312_disk.dll? Even if it is, I dont seem to be able to remove it...
     

    Attached Files:

  3. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Next time please wait to be asked.

    First problem, logs must be posted from normal boot mode in 99.9% of all instances. Do not post a new one yet.

    Next it looks like you may be running multiple antivirus applications. You must use only one. Pick the one you prefer and uninstall all the others.

    Disable Spybot's Teatimer because it often gets in the way of cleaning up problems.

    To disable TeaTimer, run Spybot and click Mode and select Advanced Mode. Then click Tools and select Resident. Now in the right window pane, uncheck TeaTimer.
    Also while this is open, in the left column now select IE Tweaks and then in the right pane make sure all the Miscellaneous locks are unchecked.
    Now quit Spybot!

    Now goto Add/Remove programs and uninstall MessengerPlus3 which can add all kinds of malware to your PC including a LOP infection.

    Now please download the following tool and save it where you will be able to find it.

    L2MeFix Tool

    Please print out these instructions now or save locally so that you can operate with All Browser Windows CLOSED.

    Exit Browsers now before continuing

    Please move the L2MeFix Tool to your Desktop and DoubleClick l2mfix.exe. Click the Install button to extract the files and follow the prompts, then open the newly added l2mfix Folder on your Desktop. DoubleClick l2mfix.bat and Type 1 and ENTER to select Option #1 for Run Find Log . Allow it as much time as it needs to run until NotePad opens with a log.

    NOTE: Please do not run any other options or files in the l2mfix Folder!

    Now reconnect and come back here and post as an attachment the l2mfix log. Based on the log, we will determine the next steps.

    Now also post a new HJT log from normal boot mode. And provide feedback on all the above steps and comments.

    Please DO NOT REBOOT after scanning for these logs!! Otherwise potential problems may mutate and spread. Wait for me to get back to you with the next steps.
     
  4. Jaffacake

    Jaffacake Private E-2

    Sorry for posting the log before.


    I've done what you asked, and here are the logs.

    The only problems I had were theat the autoexec.nt error popped up twice dring the L2MeFix scan, before producing a log. HijackThis went without a hitch.
     

    Attached Files:

  5. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    First download and run Download XP Fix

    Then rerun the L2MeFix Tool step and post a new log. It did not work properly because of that error. Let me know if it runs okay this time with getting those messages about autoexec.nt (or any other error message).

    You still have both AVG and BitDefender installed. You must uninstall one.
     
  6. Jaffacake

    Jaffacake Private E-2

    OK, here they are...

    And I didnt need to log out either this time.

    Edit: No errors on the scans either.
     

    Attached Files:

  7. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Okay that's better.

    Print or save these instructions locally now because you will have to be disconnected with no browsers open in the next step.

    Please make sure ALL Browser Windows are Closed and also you should physically disconnect from the Internet by unplugging your cable.

    Go to the L2MFix Folder on your Desktop and DoubleClick l2mfix.bat and type 2 and ENTER to select option #2 for Run Fix. Then, press any key to Reboot your machine.
    Your computer will go bazonkers (now there's a great technical term!) for a bit, but just let it run. It should eventually spit out another log in Notepad. Please attach that log when you come back.

    Again, don't run any other files in the L2MFix folder.

    Let me know how things look now.

    Also attach a new HJT log.
     
  8. Jaffacake

    Jaffacake Private E-2

    Bazonkers, ha.

    Thankfully the catastrophic nature of the term didnt materialise. But I have two new logs for you to look at. Nothing special to report on the making of these logs.

    The explorer box persists though, and I think I might have withdrawal symptoms if we do finally rid it...
     

    Attached Files:

  9. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Copy the contents of the below Quote Box to Notepad. Then click File and then Save As. Change the Save as Type to All Files. Name the file fixdll.reg and then click save. (make sure you save it somewhere you can find it. Saving it to your Desktop may make that easy.) Then double-click on the fixdll.reg file on your desktop (or locate it with Windows Explorer and double click on it if not saved to the Desktop) and when it prompts to Add in to the registry, say yes.
    Now continue with the below steps.

    If you are using WinXP or WinMe, make sure you have system restore disabled (per the tutorial).
    For all OS types, make sure viewing of hidden files is enabled (per the tutorial).

    Run HijackThis 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:
    O2 - BHO: C:\WINDOWS\q211312_disk.dll - {A82BE883-EE51-4FAB-85B4-9432C6056673} - C:\WINDOWS\q211312_disk.dll
    O18 - Filter: text/html - {A3799505-C65A-4C19-9287-559D8C48DC95} - C:\Documents and Settings\arun menon\Local Settings\Application Data\microsoft\internet explorer\V0.26.dat
    O20 - Winlogon Notify: disk - C:\WINDOWS\q211312_disk.dll
    O20 - Winlogon Notify: style2 - C:\WINDOWS\q3685171_disk.dll

    After clicking Fix, exit HJT.
    Boot into safe mode and use Windows Explorer to delete:
    C:\Documents and Settings\arun menon\Local Settings\Application Data\microsoft\internet explorer\V0.26.dat
    C:\WINDOWS\q211312_disk.dll
    C:\WINDOWS\q3685171_disk.dll

    If you get an error when deleting a file. Right click on the file and check to see if the read only attribute is checked. If it is, uncheck it and try again. Other wise open Task Manager and kill the process if running then delete the file.

    Now run Ccleaner (installed while running the READ ME FIRST). Now if running Win XP goto c:\windows\Prefetch and delete all files in this folder.

    Now reboot in normal mode and post a new HJT log. And tell us how things are working.
     
  10. Jaffacake

    Jaffacake Private E-2

    OK, not so good this time.

    Made the amendment to the registry as asked.

    HJT didnt allow me to remove the items you listed, and when booting into safe mode, explorer wouldnt allow me to delete the files (they werent read-only). No mention of the dlls running in Task Manager.

    Moreover, the V0.26.dat file didnt exist when trying to delete it. Only a MSIMGSIZ.dat file was in that folder (all files showing).

    Ran CCleaner, and deleted all files from prefetch.

    There is the HJT log file now.

    Explorer box still keeping me company. Maybe I should marry it out of common decency.
     

    Attached Files:

  11. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Did HijackThis give an error message when trying to fix those lines? If so, what was it.

    Did the registry patch give any error message? Or did it say it worked?
     
  12. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Are you sure these DLLs C:\WINDOWS\q211312_disk.dll and C:\WINDOWS\q3685171_disk.dll ) are not related to:

    C:\Program Files\Virtual CD v4 SDK

    From Windows Explorer, right click on it them and select Properties. Now see if there is a Version tab in the window. If so, select the Version tab and on the next window select each of the listed Item names (one at a time) to get more info about the file. The most important Item is the company name. If there is no Version tab, tell me that too.
     
  13. Jaffacake

    Jaffacake Private E-2

    No error messages in either, only confimation notices (where applicable), sorry... The registry chance was added successfully.

    And no version tab regarding the Virtual CD folder (which I thought might be related to my CD drive, but evidently not).
     
  14. Jaffacake

    Jaffacake Private E-2

    I quick look into the folders show apps that related to a company called "H +H Software GmbH". Those Germans...
     
  15. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    I'm not questioning this process. We can already see what it is from your HJT log.
    See the below:

    http://www.liutilities.com/products/wintaskspro/processlibrary/VCSSecS/


    I assume you installed and use this? I wanted to see if the DLLs were related.

    Do you know how to use regedit? If so, use regedit and look to see it the registry merger actually worked. Look for the below registry keys to see if they are still there.


    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\disk

    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\style2


    Are you logged in with Administrator priviledges?
     
  16. Jaffacake

    Jaffacake Private E-2

    I didnt install it myself, but it came with the computer. I dont think its suspicious. I couldnt say off-hand whether the q... files are related or not

    Ran regedit, and both keys are still present. Both have the q211312 and q3685171_disk.dll files listed (one in each).


    And yes, I do have admin privilegdes.


    A tough nut to crack, non?

    PS. Retried (even recopied) the fixdll.reg, with no change. Windows claims to have successfully changed registry, but rerunning/refreshing regedit shows no change.
     
  17. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Please download Pocket KillBox and extract it to its own folder somewhere.

    Please run Pocket Killbox. Select the option to Replace on Reboot.
    Click Start, and then click Run. (The Run dialog box appears.)
    Type, or copy and paste, the following text:


    C:\WINDOWS\q211312_disk.dll

    then click OK. If a dialog box confirming this action appears, click OK. If you get an error message, just ignore it (click OK) and continue.

    Repeat the above for: C:\WINDOWS\q3685171_disk.dll


    Please download Pocket KillBox and extract it to its own folder somewhere.

    Please run Pocket Killbox. Select the option to Replace on Reboot.


    Now, Copy and Paste C:\WINDOWS\q211312_disk.dll into the box and check the option to Use Dummy. Also check the option to End Explorer Shell While Killing File. Now, Click the Red X and Yes to the confirmation message. A message will ask if you want to reboot now – Click No!


    Now, Copy and Paste C:\WINDOWS\q3685171_disk.dll into the box and check the option to Use Dummy. Also check the option to End Explorer Shell While Killing File. Now, Click the Red X and Yes to the confirmation message. A message will ask if you want to reboot now – Click Yes!

    Okay so now your PC should be reboot. If you get an error message about Pending Operations, just reboot your PC yourself.

    After reboot, run HijackThis and see if we can now do the following. Select the following lines but DO NOT CLICK FIX until you exit all browser sessions including the one you are reading in right now:
    O2 - BHO: C:\WINDOWS\q211312_disk.dll - {A82BE883-EE51-4FAB-85B4-9432C6056673} - C:\WINDOWS\q211312_disk.dll
    O20 - Winlogon Notify: disk - C:\WINDOWS\q211312_disk.dll
    O20 - Winlogon Notify: style2 - C:\WINDOWS\q3685171_disk.dll

    After clicking Fix, exit HJT.
    Double check to make sure the below files are actually gone:
    C:\WINDOWS\q211312_disk.dll
    C:\WINDOWS\q3685171_disk.dll

    Now post a new HJT log. And tell us how things are working.
     
    Last edited: Jul 14, 2005
  18. Jaffacake

    Jaffacake Private E-2

    Good news!

    Out of nowhere, whilst (for the umpteenth time) clicking the "dont send" button on the explorer box, AVG suddenly pipes up and warns of a threat. It labels q3685171_disk.dll as Downloader.Generic.AUZ. It deleted it, and on reboot, the explorer box is gone!

    I have sone a full AVG scan, and its given the all clear. The box has not reappeared after a few boots now.

    A revised HJT log is attached. On initial scan the q368...dll was still there though mentions "file missing", but i fixed that, and its not there on 2nd scan. Regedit show no evidence of a style2 folder (the one containing q368...dll)

    A couple questions:

    Will the trojan be hiding in other windows profiles, and whats the best way of dealing with them?

    Is q211312_disk.dll a threat, and should I try to deal with it?



    Thanks for the help anyway, youve earned yourself a free psychiatric consultation if youre ever in the country. Lucky you.
     

    Attached Files:

  19. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Yes you should check all user profiles to make sure they are clean.

    Yes the other file which is still in your log is a problem. That is the reason for it being in message # 17.
    O2 - BHO: C:\WINDOWS\q211312_disk.dll - {A82BE883-EE51-4FAB-85B4-9432C6056673} - C:\WINDOWS\q211312_disk.dll
    O20 - Winlogon Notify: disk - C:\WINDOWS\q211312_disk.dll

    Run the steps related to q211312_disk.dll in message #17. Where it says "reboot now – Click No!" change that to Yes! Since the other file is already gone, ignore the steps for it.
     
  20. Jaffacake

    Jaffacake Private E-2

    OK I had a go, and rebooted (I did get the error message, which I duely ignored). Unfortunately after running HJT and attempting to remove the keys, I had no success, and also the files are still there in C:/Windows. And you still cant delete them manually.

    My HJT log hasnt changed I dont think, but ive posted another just in case.
     

    Attached Files:

  21. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    What do you mean by "them"? Is there more than just C:\WINDOWS\q211312_disk.dll ?

    Try booting in safe mode and renaming q211312_disk.dll to q211312_disk.ddd
    If that works, then try dragging the renamed file to your Desktop. Do not copy it to the Desktop. Move it to the Desktop.

    Then reboot and try to fix the lines with HJT. Let me know what happens.
     
  22. Jaffacake

    Jaffacake Private E-2

    OK, I think i'll sleep better tonight.

    I meant "it" rather than "them", sorry about that. Though way back in the early days of this fiasco, I did debate the q...dll files, and I did manage to delete some other similar files, including one that was q330994.exe which I was suspicious of at the time.

    Your suggestion worked though, renaming in safe mode made my pointer go a little mad (from normal to normal+hourglass and back in rapid fashion), but I was able to move it, and then delete the registry keys in HJT and delete the file.

    Heres the new (hopefully clean!) HJT log...

    Some more quickies:

    Will there be an application that produced the q...dll hiding somewhere?
    If all is well, will restarting Windows Restore be safe?


    Im off to bed.
     

    Attached Files:

  23. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Yes you are clean.

    I'm not sure what the root cause of this was so it's hard to know if anything else is hiding. If you want to be safe, run the below trial version of Ewido. Follow the steps given.

    Download this trial version of Ewido Security Suite

    • Install ewido security suite
    • Launch ewido, there should be an icon on your desktop double-click it.
    • The program will have a window come up. One of the buttons on the left is to Update. Click the Update button.and then Start the Update. The update will start and a progress bar will show the updates being installed.
    • After it completes the update, click the Scanner button

    Now exit Ewido. Now print the below instructions or save them locally because I want you do have no browsers opened and also have no connection to the internet (unplug your cable) while doing the below.

    Okay, reboot into safe mode and follow the steps below. (If you have any problems at all trying to get into safe mode to complete these steps, just run them in normal boot mode and make sure you tell me when you come back.)

    Open up Ewido and do the following:


    • Click on Scanner
    • Then click Settings
    • Under What to Scan? Select Scan every file
    • Then click OK
    • Click on Complete System Scan and the scan will start.
    • Let the program scan the machine
    While the scan is in progress you will be prompted to clean files that are infected. Leave the defaults selections (to Remove and backup) and click OK. To save yourself some time, you can select Perform action with all infections and then click OK. With the option to scan every file, a lot of cookies will be removed.

    Once the scan has completed, there will be a button located on the bottom of the screen named Save report


    • Click Save report
    • Save the report to your desktop or anyplace you will be able to find it to upload here.
    Reboot into normal mode and reconnect to the internet.

    Come back here and post the Ewido Scan Report. And tell me if you are still having any problems.
     
  24. Jaffacake

    Jaffacake Private E-2

    It looks like q211312_disk.dll was the root of my problems with Windows Update: It had been asking me to update the same updates every time I logged on recently (just before the main problem arose), even though I was able to download and (?sucessfully) install. Now everythings running smoothly.

    Done the scan, and a few things were found. See what you make of it.
     

    Attached Files:

  25. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Happy to hear that updates are working now. Ewido did some minor cleaning.

    Now that you are all cleaned up you should see the steps in the below thread:

    How to Protect yourself from malware!
     

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