Results 1 to 10 of 10

Thread: Preventing a boot sector virus infection

  1. #1
    Join Date
    Jul 2005
    Beans
    412

    Preventing a boot sector virus infection

    Hello,

    My question is about boot sector viruses. Since they infect the boot sector and are loaded from the boot sector before the operating system gets loaded, they can affect all operating systems, right? This would make linux also vulnerable to boot sector viruses. What can we do to prevent this? If I make the internal hard drive the only bootable device in the BIOS and then password protect the BIOS so that the settings cannot be changed, will that protect me from boot sector virus infected media left inadvertently in the computer during shutdown or boot up? By media I mean things like DVDs, USB flash drives, floppy discs etc. Can linux get a boot sector virus infection from just regular internet web browsing? I know that windows is vulnerable to such boot sector virus infections from just browsing the internet. Is linux vulnerable too?

  2. #2
    Join Date
    Mar 2011
    Beans
    673

    Re: Preventing a boot sector virus infection

    SecureBoot / TrustedBoot are pretty much the defacto methods for preventing bootkits.
    sig

  3. #3
    Join Date
    Jul 2005
    Beans
    412

    Re: Preventing a boot sector virus infection

    As far as I can make out, those two are for newer computers running microsoft windows. Mine is an older laptop and I plan to install ubuntu 12.04 on it. Can someone please respond to my original post?

  4. #4
    Join Date
    Nov 2012
    Location
    England, United Kingdom
    Beans
    Hidden!
    Distro
    Ubuntu Gnome 15.04 Vivid Vervet

    Re: Preventing a boot sector virus infection

    Maybe this will help - http://en.wikipedia.org/wiki/Boot_se...sector_viruses - & - it looks like someone over at the Linux Mint forums have asked the same question here http://forums.linuxmint.com/viewtopi...ce3a7d8e7ad7fd & was marked as [solved].
    Need help with Ubuntu
    Please keep in mind that the ubuntuforums.org is a support forum for Ubuntu only we do not offer support for Microsoft Windows.
    Please read the Forum Rules before posting.

  5. #5
    Join Date
    Jul 2005
    Beans
    412

    Re: Preventing a boot sector virus infection

    Hello,

    My BIOS does not have the option to prevent writing to the boot sector as mentioned in that wikipedia article. The linux mint forum article also does not answer my original post.

    Can someone please answer the questions I raised in the first post in this thread?

  6. #6
    Join Date
    Oct 2009
    Beans
    Hidden!
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Preventing a boot sector virus infection

    If you don't have the option of secure boot, you are pretty much out of luck.

    With that being said, I have never seen a boot sector virus in all my time of working in IT. Regular ones, sure, but nothing that went after the boot sector itself.
    Come to #ubuntuforums! We have cookies! | Basic Ubuntu Security Guide

    Tomorrow's an illusion and yesterday's a dream, today is a solution...

  7. #7
    Join Date
    Jul 2005
    Beans
    412

    Re: Preventing a boot sector virus infection

    If I make the internal hard drive the only bootable device in the BIOS and then password protect the BIOS so that the settings cannot be changed, will that protect me from boot sector virus infected media left inadvertently in the computer during shutdown or boot up? By media I mean things like DVDs, USB flash drives, floppy discs etc.

  8. #8
    Join Date
    Oct 2009
    Beans
    Hidden!
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Preventing a boot sector virus infection

    Quote Originally Posted by jsvidyad View Post
    If I make the internal hard drive the only bootable device in the BIOS and then password protect the BIOS so that the settings cannot be changed, will that protect me from boot sector virus infected media left inadvertently in the computer during shutdown or boot up? By media I mean things like DVDs, USB flash drives, floppy discs etc.
    Yes. Unless someone resets the BIOS and changes the boot order, of course.

    Physical access > all.
    Come to #ubuntuforums! We have cookies! | Basic Ubuntu Security Guide

    Tomorrow's an illusion and yesterday's a dream, today is a solution...

  9. #9
    Join Date
    Mar 2006
    Location
    Williams Lake
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: Preventing a boot sector virus infection

    Stop using floppy disks.

  10. #10
    Join Date
    Nov 2013
    Location
    On the edge
    Beans
    731
    Distro
    Ubuntu

    Re: Preventing a boot sector virus infection

    Quote Originally Posted by cariboo907 View Post
    Stop using floppy disks.
    You mean I shouldn't use this as my sole backup anymore?
    Attached Images Attached Images

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •