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Backdoor:Zonebac/win32.b

By turkishbull
Oct 28, 2007
  1. I seem to have got a trojan or virus on my pc. Lately it has been running slower than usual and places I visit like ESPN.com will have pornographic images where automobile ads normally are located. Each day Windows Defender finds this file and no matter how many times I quarantine or remove it it keeps coming back.

    I came here and followed all 15 steps as requested and am hoping for some assistance. Attached are the 3 log files requested.

    Thank you in advance,
    Turkishbull
     
  2. howard_hopkinso

    howard_hopkinso TS Rookie Posts: 24,177   +19

    Hello and welcome to Techspot.

    Your system is infected with a trojan called Downloader.Agent.awf. It replaces legitimate files that are common on most computers with an infected file. Then, it moves the legitimate files to a bak or backup folder.


    Very Important: Before deciding whether you should clean or reformat your system, go and read this thread HERE and decide what it is you want to do.

    If after reading the above, you wish to clean your system, do the following.

    Go and read this thread this thread HERE and follow the instructions exactly. Post the requested log files.

    Regards Howard :wave: :wave:

    This thread is for the use of turkishbull only. Please don`t post your own virus/spyware problems in this thread. Instead, open a new thread in our security and the web forum.
     
  3. turkishbull

    turkishbull TS Rookie Topic Starter

    Ran findAWF until it no longer found any bak files. Here are the final results of AWF.txt and hijackthis.txt files.
     
  4. howard_hopkinso

    howard_hopkinso TS Rookie Posts: 24,177   +19

    We need to temporarily disable Spybot search & Destroy`s tea time, as it may interfere with any fix we are trying to run.

    Disable Spybot's TeaTimer. This is a two step process.
    First:
    - Right click Spybot in the System Tray (looks like a calendar with a padlock symbol)
    - Choose Exit Spybot S&D Resident
    Second:
    - Open Spybot S&D
    - Click Mode, check Advanced Mode
    - Go To Left Panel, Click Tools, then also in left panel, click Resident
    - If your firewall raises a question, say OK
    - Uncheck the box labeled Resident Tea-Timer and OK any prompts.
    - Use File, Exit to terminate Spybot
    - Reboot your machine for the changes to take effect.


    You might want to copy and paste these instructions into a notepad file. Then you can have the file open in safe mode, so you can follow the instructions easier.

    Boot into safe mode, under your normal user name(NOT THE ADMINISTRATOR ACCOUNT). See how HERE.

    In Windows Explorer, turn on "Show all files and folders, including hidden and system". See how HERE.

    Delete all files in AVG Antispyware quarantine.

    Go to add remove programmes in your control panel and uninstall anything to do with(if there).

    viewpoint
    viewpoint toolbar
    viewpoint manager

    Close control panel.

    Click start/run and type services.msc into the run box and press the enter key.

    When the window appears, maximise it. Double click on the following services(if there) and select stop if they are running. Set the startup type to disabled. Click apply/ok for each service you disable.

    Viewpoint Manager Service

    Close the services window.

    Open your task manager, by holding down the ctrl and alt keys and pressing the delete key.

    Click on the processes tab and end process for(if there).

    ViewpointService.exe
    ViewMgr.exe

    Close task manager.

    Run HJT with no other programmes open(except notepad). Click the scan button. Have HJT fix the following, by placing a tick in the little box next to(if there).

    O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)

    O23 - Service: Viewpoint Manager Service - Viewpoint Corporation - C:\Program Files\Viewpoint\Common\ViewpointService.exe

    Click on the fix checked button.

    Close HJT.

    Locate and delete the following bold files and/or folders(if there).

    C:\Program Files\Viewpoint

    Reboot into normal mode and rehide your protected OS files.

    Go HERE, download and install the latest version of Java.

    Once it`s installed, go to add remove programmes in your control panel and uninstall all previous versions of Java, except version 6 update 3. Close Control panel.

    Post fresh HJT and Combofix logs.

    you want to do.[/b]

    If after reading the above, you wish to clean your system, do the following.

    Go and read this thread this thread HERE and follow the instructions exactly. Post the requested log files.

    Regards Howard :)

    This thread is for the use of turkishbull only. Please don`t post your own virus/spyware problems in this thread. Instead, open a new thread in our security and the web forum.
     
  5. turkishbull

    turkishbull TS Rookie Topic Starter

    Did as requested, here are my 2 log files.
     
  6. howard_hopkinso

    howard_hopkinso TS Rookie Posts: 24,177   +19

    That all looks good.

    Unless you`re still having problems, you should be good to go.

    If you`re not having any problems, please do the following.

    Turn off system restore.(XP/ME only) See how HERE.

    Now, turn system restore back on. This will have deleted all your old restore points and any nasties that are in them. It will also have created a new, clean restore point.


    If you have any further virus/spyware problems, please post in this thread.

    Regards Howard :)

    This thread is for the use of turkishbull only. Please don`t post your own virus/spyware problems in this thread. Instead, open a new thread in our security and the web forum.
     
  7. turkishbull

    turkishbull TS Rookie Topic Starter

    Thanks a bunch for your help. It was gone for about 2 days then resurfaced yesterday. I'm going to try following the same steps as before and see if I can get rid of it again. If not I'll post here for additional help. It was much appreciated the detail and time you took to respond previously.

    Turk
     
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