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    SubjectRe: BTTV detection broken in 2.4.0-test11-pre5
    Alexander Viro wrote:

    > On Sun, 19 Nov 2000, Christer Weinigel wrote:
    >
    > > In article <Pine.LNX.4.30.0011190710440.13087-100000@anime.net> you write:
    > > >On Sun, 19 Nov 2000, Alexander Viro wrote:
    > > >> On Sun, 19 Nov 2000, David Lang wrote:
    > > >> > there is a rootkit kernel module out there that, if loaded onto your
    > > >> > system, can make it almost impossible to detect that your system has been
    > > >> > compramised. with module support disabled this isn't possible.
    > > >> Yes, it is. Easily. If you've got root you can modify the kernel image and
    > > >> reboot the bloody thing. And no, marking it immutable will not help. Open
    > > >> the raw device and modify relevant blocks.
    > > >
    > > >Kernel on writeprotected floppy disk...
    >
    > Cute. And when (not if) we get hit by new bug in the net/*/* you will drive
    > to the location of said router to upgrade the thing.
    >

    No, I mail the customer a new operating CD.

    -b


    >
    > > So change the CMOS-settings so that the BIOS changes the boot order
    > > from A, C, CD-ROM to C first instead. *grin* How long do you want
    > > to keep playing Tic-Tac-Toe?
    >
    > Now, _that_ can be taken care of (custom boot code burnt into the thing)
    >
    > > Of course, using capabilities and totally disabling access to the raw
    > > disk devices and to any I/O ports might be the solution, provided that
    > > there are no bugs or thinkos in the capabilities code.
    >
    > -
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