TechSpot

Help Removing Malware

By thefranchise808
Jun 9, 2008
  1. Hello there,
    my computer has been infected by some malware that's causing Internet Explorer to act funny, disable automatic updates for windows and random pop-ups to come on. I've tried to go through the step by step sticky thread available but I keep getting the Buffer Overrun Error and that makes my desktop disappear and so it's hard to run any programs.
    I'm looking ror ANY help and suggestions.
    I've attached my HijackThis log in case it helps.

    I appreciate any help.

    Thank you
     
  2. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    Do this then continue through preliminary removal.

    Disable Teatimer
    • Right click the Spybot -SD Resident Icon located in your system tray, Select Exit Spybot - S&D Resident
    • Open Spybot S&D
    • Click on Mode at the top and make sure that Advanced is checked
    • Expand the Tools tab in the left pane
    • Single click on the Resident Icon also in the left pane
    • Uncheck Resident "TeaTimer" (Protection of over-all system settings) Active
    • Close spybot

    -----------------------------------------------------------------------

    Please download the Killbox by Option^Explicit.

    Note: In the event you already have Killbox, this is a new version that I need you to download.
    • Save it to your desktop.

    -------------------------------------------------------------------------

    Please re-open HiJackThis and scan. Check the boxes next to all the entries listed below.

    R3 - URLSearchHook: (no name) - - (no file)
    O2 - BHO: (no name) - {3C015D62-5F71-45D8-A8EB-A060BBB38786} - C:\WINDOWS\system32\wvUlijJA.dll (file missing)
    O2 - BHO: {2d311645-9d90-78fb-8dd4-a1a1d46542cc} - {cc24564d-1a1a-4dd8-bf87-09d9546113d2} - C:\WINDOWS\system32\hhjhridq.dll
    O2 - BHO: (no name) - {FD796BEE-EA69-4340-B98F-E12BD73E1197} - C:\WINDOWS\system32\fccddDVm.dll
    O4 - HKLM\..\Run: [9c227889] rundll32.exe "C:\WINDOWS\system32\oeuuutyr.dll",b

    Now close all windows other than HiJackThis, then click Fix Checked. Close HiJackThis.

    Please go to Start > Control Panel > Add/Remove Programs and remove the following (if present):

    Viewpoint

    Please note any other programs that you don't recognize in that list in your next response.


    • Please double-click Killbox.exe to run it.
    • Select:
      • Delete on Reboot
      • then Click on the All Files button.
    • Please copy the file paths below to the clipboard by highlighting ALL of them and pressing CTRL + C (or, after highlighting, right-click and choose copy):

      C:\WINDOWS\system32\oeuuutyr.dll
      C:\WINDOWS\system32\fccddDVm.dll
      C:\WINDOWS\system32\hhjhridq.dll


    • Return to Killbox, go to the File menu, and choose Paste from Clipboard.
    • Click the red-and-white Delete File button. Click Yes at the Delete on Reboot prompt. Click OK at any PendingFileRenameOperations prompt (and please let me know if you receive this message!).

    If your computer does not restart automatically, please restart it manually.

    If you receive a message such as: "Component 'MsComCtl.ocx' or one of its dependencies not correctly registered: a file is missing or invalid." when trying to run Killbox, click here to download and run missingfilesetup.exe. Then try Killbox again.

    After that, post a new HijackThis log here in a reply and I will give you the ok to restart preliminary removal
     
  3. thefranchise808

    thefranchise808 TS Rookie Topic Starter Posts: 39

    Thanks a lot for the reply.

    I think I did everything you asked me to. When trying to delete those 3 files in KillFix, I received the PendingFileRenameOperations prompt"registry Data has been removed by an external process" for all 3 of them.
    I restarted the computer and here is the latest Hijackthis log.

    (About the Search and Destroy, I had already tried deleting it from my computer. not sure of it still is there though.)

    Thanks again
     
  4. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    No need to delete spybot, just disable the tea timer part of it per the above instructions.

    After you disable tea timer, proceed with preliminary removal instructions.

    It is storming here so I will be back when it passes
     
  5. thefranchise808

    thefranchise808 TS Rookie Topic Starter Posts: 39

    Hi BlindDragon,

    OK I've followed the preliminary instruction thread as best I could. There seems to be some improvements (automatic updates back on) but I have a feeling there might still be a few glitches as my computer and IE is still a bit slow. I've attached the 3 logs and hope they are of use to you. Also When I ran the Rootkits scan, nothing was returned.

    Let me know if anything else is required.

    Thank you
     
  6. thefranchise808

    thefranchise808 TS Rookie Topic Starter Posts: 39

    Also, whenever the computer starts up, I get a Spybot Search and Destroy Change notification that says,

    S&D has detected important registry entry that has been changed
    System STartup User entry
    Value deleted

    Old Data: cmmand\CdelC:\WINDOWS\system32\wvulijJA.dll

    Then it asks me to deny or allow change.
    Which should I choose?

    Thanks.
     
  7. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    Launch spybot -> click on recovery icon at the top -> highlight everything and select purge and you should allow the change to the registry as you have rebooted so it already attempted to remove that file. Now it is just removing the entry in the registry telling it not to try and delete again next time you reboot.

    I am looking through logs now
     
  8. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    Did you run Vundofix from step 10?

    if so attach C:\vundofix.txt

    if not then I will post instructions
     
  9. thefranchise808

    thefranchise808 TS Rookie Topic Starter Posts: 39

    Here is vundofix
     
  10. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    Let's first install the recovery console on your machine

    Go to Microsoft's website => http://support.microsoft.com/kb/310994
    Select the download that's appropriate for your Operating System.


    [​IMG]


    Download the file & save it as it's originally named, next to ComboFix.exe.


    [​IMG]

    Now close all open windows and programs, then drag the setup package onto ComboFix.exe and drop it. Follow the prompts to start ComboFix and when prompted, agree to the End-User License Agreement to install the Microsoft Recovery Console. When complete, a log named CF_RC.txt will open. Please post the contents of that log.

    Please do not reboot your machine until we have reviewed the log.
     
  11. thefranchise808

    thefranchise808 TS Rookie Topic Starter Posts: 39

    Log attached.
     
  12. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    where is CF_RC.txt
     
  13. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    Here are issues to resolve before we can finish cleaning up the left overs

    1) AVG8 and Norton are both installed. I recommend you keep AVG and run the norton removal tool found -> http://service1.symantec.com/Support/tsgeninfo.nsf/docid/2005033108162039

    2) Teatimer is still enabled please disable it.
    Disable Teatimer
    • Right click the Spybot -SD Resident Icon located in your system tray, Select Exit Spybot - S&D Resident
    • Open Spybot S&D
    • Click on Mode at the top and make sure that Advanced is checked
    • Expand the Tools tab in the left pane
    • Single click on the Resident Icon also in the left pane
    • Uncheck Resident "TeaTimer" (Protection of over-all system settings) Active
    • Close spybot

    3) Attach a fresh Hijackthis log so I can ensure you have done the above before providing you with a script
    4) Also attach C:\CF_RC.txt from installing the recovery console
     
  14. thefranchise808

    thefranchise808 TS Rookie Topic Starter Posts: 39

    Here is the hijacklog after I did the two steps you instructed.

    About the CF_RC log, when I dragged the setup file over ComboFix and followed through with the steps, the log that came up was the one I posted Titled "Log"...I can't seem to find anything named CF_RC.
     
  15. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    Symantec is gone, but I am still seeing teatimer enabled.

    You have to disable teatimer for the fix to work.
     
  16. thefranchise808

    thefranchise808 TS Rookie Topic Starter Posts: 39

    OK, at first Spybot wouldn't let me disable tea timer but I believe I just did...here's the new log.
     
  17. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    Run CFScript

    Open notepad and copy/paste the text in the code box below into it:
    NOTE* make sure to only highlight and copy what is inside the quote box nothing out side of it.
    Also ..

    Pay particular attention to this :-

    Make sure the word File:: is on the first line of the text file you save (no blank line above it, & no space in front of it)
    Save this as CFScript.txt

    Then drag the CFScript.txt into ComboFix.exe as you see in the screenshot below.

    [​IMG]

    This will start ComboFix again. After reboot, (in case it asks to reboot), post the contents of Combofix.txt in your next reply together with a fresh HJT log.

    ----------------------------------------------------------------

    And for a 2nd opinion on our progress:
    Run Kaspersky Online AV Scanner

    Order to use it you have to use Internet Explorer.
    Go to Kaspersky and click the Accept button at the end of the page.

    Note for Internet Explorer 7 users: If at any time you have trouble with the accept button of the licence, click on the Zoom tool located at the right bottom of the IE window and set the zoom to 75 %. Once the license accepted, reset to 100%.
    • Read the Requirements and limitations before you click Accept.
    • Allow the ActiveX download if necessary.
    • Once the database has downloaded, click Next.
    • Click Scan Settings and change the "Scan using the following antivirus database" from standard to extended and then click OK.
    • Click on "My Computer"
    • When the scan has completed, click Save Report As...
    • Enter a name for the file in the Filename: text box and then click the down arrow to the right of Save as type: and select text file (*.txt)
    • Click Save - by default the file will be saved to your Desktop, but you can change this if you wish.
    Attach the report into your next reply
     
  18. thefranchise808

    thefranchise808 TS Rookie Topic Starter Posts: 39

    CFScript and Hujackthislog as well as Kaspersky results...had to stop scan at 97% since it appeared to stop scanning.
     
  19. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    When you scan with AVG be sure to scan drive E:

    -----------

    Run CFScript

    Open notepad and copy/paste the text in the code box below into it:
    NOTE* make sure to only highlight and copy what is inside the quote box nothing out side of it.
    Also ..

    Pay particular attention to this :-

    Make sure the word File:: is on the first line of the text file you save (no blank line above it, & no space in front of it)
    Save this as CFScript.txt

    Then drag the CFScript.txt into ComboFix.exe as you see in the screenshot below.

    [​IMG]

    This will start ComboFix again. After reboot, (in case it asks to reboot), post the contents of Combofix.txt in your next reply
     
  20. thefranchise808

    thefranchise808 TS Rookie Topic Starter Posts: 39

    Sorry quick question, do you want me to scan with AVG and delete what it finds or run the CFScript first?
     
  21. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    Run CFscript, then attach the log it generates

    I meant AVG on a regular basis scan everything not just C: drive
     
  22. thefranchise808

    thefranchise808 TS Rookie Topic Starter Posts: 39

    Latest CFScript log
     
  23. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    good work, let me see one more hijackthis log and we can clean up
     
  24. thefranchise808

    thefranchise808 TS Rookie Topic Starter Posts: 39

    Here it is
     
  25. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    You should keep 1 firewall, 1 antivirus, a temp file cleaner and your choice of antispyware - i like mbam, but you have AVG so it's built in. You can keep both without conflict. I also recommend you get Winpatrol to monitor changes to the registry - here is a temp cleaner and firewall instructions.


    Download and Run ATF Cleaner
    Download ATF Cleaner by Atribune to your desktop.

    Double-click ATF Cleaner.exe to open it.

    Under Main choose:
    Windows Temp
    Current User Temp
    All Users Temp
    Cookies
    Temporary Internet Files
    Prefetch
    Java Cache

    *The other boxes are optional*
    Then click the Empty Selected button.

    Firefox or Opera:
    Click Firefox or Opera at the top and choose: Select All
    Click the Empty Selected button.
    NOTE: If you would like to keep your saved passwords, please click NO at the prompt.

    Click Exit on the Main menu to close the program.

    ---------------------------------------------------------------------------

    You aren't running Firewall Software. Please download and install one of these first!

    Use a Firewall - It is very important that you use a Firewall on your computer. If you use the Windows Firewall you might think that's enough but it only controls inbound traffic. Simply using a Firewall in its default configuration can lower your risk greatly. Here are some firewalls which are free for personal use and most commonly used:
    Comodo (Vista Compatible)
    Kerio
    Online Armor
    Zonealarm (Vista Compatible)

    ----------------------------------------------------------------------

    Uninstall Combofix
    * Click START then RUN
    * Now type Combofix /u in the runbox
    * Make sure there's a space between Combofix and /u
    * Then hit Enter.

    * The above procedure will:
    * Delete the following:
    * ComboFix and its associated files and folders.
    * Reset the clock settings.
    * Hide file extensions, if required.
    * Hide System/Hidden files, if required.
    * Set a new, clean Restore Point.

    -----------------------------------------------------------------------

    OTCleanit! by Oldtimer
    • Download OTCleanIt
    • Click the CleanUp! button.
      • It will go thorugh the list and remove all of the tools it finds and then delete itself (requiring a reboot).

    ---------------------------------------------------------------------------

    Now that you are clean, please follow these simple steps in order to keep your computer clean and secure:
    1. Set correct settings for files
      • Click Start > My Computer > Tools menu (at top of page) > Folder Options > View tab.
      • Under "Hidden files and folders" if necessary select Do not show hidden files and folders.
      • If unchecked please check Hide protected operating system files (Recommended)
      • If necessary check "Display content of system folders"
      • If necessary Uncheck Hide file extensions for known file types.
      • Click OK

      clear system restore points

      • This is a good time to clear your existing system restore points and establish a new clean restore point:
        • Go to Start > All Programs > Accessories > System Tools > System Restore
        • Select Create a restore point, and Ok it.
        • Next, go to Start > Run and type in cleanmgr
        • Select the More options tab
        • Choose the option to clean up system restore and OK it.
        This will remove all restore points except the new one you just created.

    2. Make your Internet Explorer more secure - This can be done by following these simple instructions:
      1. From within Internet Explorer click on the Tools menu and then click on Options.
      2. Click once on the Security tab
      3. Click once on the Internet icon so it becomes highlighted.
      4. Click once on the Custom Level button.
        • Change the Download signed ActiveX controls to Prompt
        • Change the Download unsigned ActiveX controls to Disable
        • Change the Initialize and script ActiveX controls not marked as safe to Disable
        • Change the Installation of desktop items to Prompt
        • Change the Launching programs and files in an IFRAME to Prompt
        • Change the Navigate sub-frames across different domains to Prompt
        • When all these settings have been made, click on the OK button.
        • If it prompts you as to whether or not you want to save the settings, press the Yes button.
      5. Next press the Apply button and then the OK to exit the Internet Properties page.
    3. Use an AntiVirus Software - It is very important that your computer has an anti-virus software running on your machine. This alone can save you a lot of trouble with malware in the future.

      See this link for a listing of some online & their stand-alone antivirus programs:

      Virus, Spyware, and Malware Protection and Removal Resources

    4. Update your AntiVirus Software - It is imperitive that you update your Antivirus software at least once a week (Even more if you wish). If you do not update your antivirus software then it will not be able to catch any of the new variants that may come out.

    5. Use a Firewall - I can not stress how important it is that you use a Firewall on your computer. Without a firewall your computer is succeptible to being hacked and taken over. I am very serious about this and see it happen almost every day with my clients. Simply using a Firewall in its default configuration can lower your risk greatly.

      For a tutorial on Firewalls and a listing of some available ones see the link below:

      Understanding and Using Firewalls

    6. Visit Microsoft's Windows Update Site Frequently - It is important that you visit http://www.windowsupdate.com regularly. This will ensure your computer has always the latest security updates available installed on your computer. If there are new updates to install, install them immediately, reboot your computer, and revisit the site until there are no more critical updates.This is done in Vista through control panel -> windows updates.

    7. Update all these programs regularly - Make sure you update all the programs I have listed regularly. Without regular updates you WILL NOT be protected when new malicious programs are released.
    Follow this list and your potential for being infected again will reduce dramatically.

    here are some additional utilities that will enhance your safety

    • IE/Spyad <= IE/Spyad places over 4000 websites and domains in the IE Restricted list which will severely impair attempts to infect your system. It basically prevents any downloads (Cookies etc) from the sites listed, although you will still be able to connect to the sites.
    • MVPS Hosts file <= The MVPS Hosts file replaces your current HOSTS file with one containing well know ad sites etc. Basically, this prevents your coputer from connecting to those sites by redirecting them to 127.0.0.1 which is your local computer
    • Google Toolbar <= Get the free google toolbar to help stop pop up windows.
    • Winpatrol <= Download and install the free version of Winpatrol. a tutorial for this product is located here:
      Using Winpatrol to protect your computer from malicious software
     
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