Very persistent virus--In flash?

Discussion in 'Malware Help (A Specialist Will Reply)' started by Phydron, Mar 24, 2013.

  1. Phydron

    Phydron Private E-2

    I have a desktop with a Gigabyte Z77X MB 8GB Corsair RAM win7 SP1.
    Nothing else is on the board (using on board video) except a wireless card.
    MY problem is a very persistent virus. I cleaned the HDD with Dban, reset the BIOS. and the virus is still there. No thumb drives or SD cards were used. The
    BIOS is F14 (Newest stable one). This malware won't allow the keyboard to
    work most of the time, (I've tried several), Win command processor displays
    odd characters and any virus removers or scanners are removed on reboot.
    This morning I tried a brand new HDD, used a legal copy of the OS, kept the
    wireless off and the problem is still there. This motherboard has been back to
    Gigabyte, they said no problems noted. I've been fighting this for several
    months and am beginning to wonder if it's possible to remove it. I've asked
    others for help, but no one has been able to figure it out. If you guys have
    any ideas, I'd of course be eternally grateful.

    ps. Command console finally let me check for NTSF error 55, but no help.
     
    Phydron, Mar 24, 2013
    #1
  2. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Actually have never heard of an infection that would do this. If you erased the BIOS and reprogrammed it, any BIOS infection would be gone. It is unlikely that other flash devices on the motherboard ( if there are any ) would get infected as easily as BIOS could. And if they were, you are looking at a new motherboard to fix it.

    How do you know that it is not just a hardware issue with your mother board itself. You said the keyboard works else where so it should be fine but the keyboard interface is on your motherboard and it could be the issue.

    "Most of the time"? Not likely a virus would allow a keyboad to work sometimes but not others. Still sounds like hardware.

    What do you mean my "Win command processor"? Do you mean in a command prompt window? Or do you mean Task Manager Process list?

    No this sounds more like an infection, but how are you looking at things if the keyboard does not work "most of the time"? Are you using a mouse with On Screen Keyboard. How are you putting scanners on the PC to begin with

    Then the likelihood of an infection on your motherboard is very low and since you replaced the hard disk, the only possible answer would be that you are reinfecting it my installing the OS from infected media or inserting some other infected devices (CDs, DVDs, USB flash drives, USB hard disks, USB devices like camera's-- phones--printer..etc, or secondary hard disk with an infection, another peripheral device ( like additiona; HD controller, vide card, printer...etc ) is infected ( very unlikley ).

    Then perhaps you should cut your costs and dump this PC. Again you have no real proof that the MB is infected/bad especially if you trust that Gigabyte was able to properly test/use it. This would again point towards something else you are connecting.
     
    chaslang, Mar 28, 2013
    #2
  3. Phydron

    Phydron Private E-2

    Thank you for your reply. I'll try to answer your questions and comments in
    order.
    I don't think this is a hardware issue. After it began, I returned the mother
    board to Gigabyte because the USB keyboard seemed to have intermittent
    problems. They returned it saying there were no problems found. The keyboard
    quits when I try to use Explorer or Chrome to access the internet. A virtual
    keyboard works for a while, then it also quits, but usually works on reboot.
    Win command processor is just the command prompt. If I type "format", it
    resets the command, if I type anything else, it displays ">M>H>V" instead
    of what I type.
    The programs and scanners were installed from a new CD, from what I hope is a clean
    laptop that I'm using now.
    My last install was just the motherboard, memory, a wireless board, keyboard,
    wireless mouse, optical drive and a legal copy of win 7, sp1 on a new 1GB HDD
    The only other programs on it are Gigabyte drivers from their disk, Avast,
    and the progs you recommended, downloaded onto a DVD on this computer
    then installed on the one possessed by the devil.
    I have another legal Win7 disk and Gigabyte has their drivers on the net
    for download although I've scanned what I have now. I know it's possible
    to infect flash memory, but highly unlikely so I'll keep plugging away to try
    to isolate the source.
    If you can think of anything else I can try I'd really appreciate it.

    Thanks again.
     
    Phydron, Mar 28, 2013
    #3
  4. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Try using all differnent hardware. That is DO NOT use the same keyboard and mouse. And do not plugin/use the wireless card. In fact do not plug any other cards into the motherboard to start. See if there is any difference.

    It still sounds more like a hardware problem to me.
     
    chaslang, Apr 1, 2013
    #4

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