tsk_comparedir1

Usage

Overview

tsk_comparedir compares the contents of image to the contents of comparison_directory. This can be useful for detecting rootkits and when testing. Rootkits can be detected by comparing the contents of a local directory and a local raw device. The rootkits typically don't hide data when it is read directly from the raw device.

The arguments are as follows:

-o sector_offset

Sector offset for a partition in the image or device to compare with.

-n start_inum

Starting inum for a directory in the image to start the comparison at.

-v

verbose output to stderr

-V

Print version

-f fstype

Specify the file system type. Use '-f list' to list the supported file system types. If not given, autodetection methods are used.

-i imgtype

The format of the image file, such as raw. Use '-i list' to list the supported types. If not given, autodetection methods are used.

-b dev_sector_size

The size (in bytes) of the device sectors. If not given, autodetection methods are used.

image [images]

The disk or partition image to read, whose format is given with '-i'. Multiple image file names can be given if the image is split into multiple segments. If only one image file is given, and its name is the first in a sequence (e.g., as indicated by ending in '.001'), subsequent image segments will be included automatically.

Examples

To compare the directories in image.dd to those in directory:

# tsk_comparedir ./image.dd ./directory