# Check real file type
file file.xxx
# Analyze strings
strings file.xxx
strings -a -n 15 file.xxx # Check the entire file and outputs strings longer than 15 chars
# Check embedded files
binwalk file.xxx # Check
binwalk -e file.xxx # Extract
# Check as binary file in hex
ghex file.xxx
# Check metadata
exiftool file.xxx
# Stego tool for multiple formats
wget https://embeddedsw.net/zip/OpenPuff_release.zip
unzip OpenPuff_release.zip -d ./OpenPuff
wine OpenPuff/OpenPuff_release/OpenPuff.exe
# Compressed files
fcrackzip file.zip
# Office documents
https://github.com/assafmo/xioc
# guestmount can mount any kind of disk file
sudo apt-get install libguestfs-tools
guestmount --add yourVirtualDisk.vhdx --inspector --ro /mnt/anydirectory
# Check spectrogram
wget https://code.soundsoftware.ac.uk/attachments/download/2561/sonic-visualiser_4.0_amd64.deb
dpkg -i sonic-visualiser_4.0_amd64.deb
# Check for Stego
hideme stego.mp3 -f && cat output.txt #AudioStego
# Stego
wget http://www.caesum.com/handbook/Stegsolve.jar -O stegsolve.jar
chmod +x stegsolve.jar
java -jar stegsolve.jar
# Stegpy
stegpy -p file.png
# Check png corrupted
pngcheck -v image.jpeg
# Check what kind of image is
identify -verbose image.jpeg