Analyzing a memory card with MacOS X

First, grab Maximillian Dornseif’s forensics slides (you’ll find them…).
Second: Think about a way to prevent
to automount the image, otherwise it will modify the image by adding two files: .Trash and ._.Trash.

4 comments on “Analyzing a memory card with MacOS X

  1. cklein
    2008-10-16 at 00:08 #

    I read TONS of useless documentation, about
    all kind of ancient MacOS X versions and tools
    like autodiskmount (This command is deprecated and exists only for backwards compatibility.)
    and just before giving up, I found this tool:
    /usr/sbin/diskarbitrationd that is started
    from a startscript in /priv/etc/mach_init.d/diskarbitrationd.plist. I still have to find out who restarts the program after killing it, for testing purposes, I renamed the program and started it with the -d flag. Here is the output:

    diskarbitration [2897] -> diskarbitration [2897]
    probed disk, id = /dev/disk2s1, with msdos, ongoing.
    probed disk, id = /dev/disk2s1, with msdos, success.
    mounted disk, id = /dev/disk2s1, ongoing.
    mounted disk, id = /dev/disk2s1, success.

    Patching the diskarbitrationd seems easy, but the
    mechanism itself doesn’t. I’m thinking about preventing
    mounting of FAT filesystems, or even some execution prevention by a lock file.

    This comment was originally posted on 20051005T23:38:28

  2. jens
    2008-10-16 at 00:08 #

    How about…

    How about…
    … patching this:

    This comment was originally posted on 20051006T11:51:23

  3. cklein
    2008-10-16 at 00:08 #

    Very nice software, but I guess it won’t work:
    I was wrong in the orignal posting that creates
    the trashcan directories, it’s the diskarbitrationd itself,
    see function void _DAMountCreateTrashFolder( DADiskRef disk, CFURLRef mountpoint ) in DAMount.c.

    This comment was originally posted on 20051006T17:04:44

  4. cklein
    2008-10-16 at 00:08 #

    You can get the patch here.

    This comment was originally posted on 20051006T18:33:20

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