Extract Binary

Simple reverse engineering.

strings

Look for strings in the binary:

strings filename

still gibberish, possibly compressed or encrypted try binwalk.

binwalk

Install:

wget https://github.com/devttys0/binwalk/archive/master.zip
unzip master.zip
(cd binwalk-master && sudo python setup.py uninstall && sudo python setup.py install)

For Extracting:

sudo ./binwalk-master/deps.sh

Offical Quick Start

File Info:

binwalk filename

Extract:

binwalk -e filename

Remove install files:

rm master.zip
sudo rm binwalk-master -fr

ref

Motherboard