# Check 1 real file type
file file.xxx
​
# Analyze strings
strings file.xxx
strings -a -n 15 file.xxx # Check the entire file and outputs strings long
​
# 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
​
# Compressed files
fcrackzip file.zip

# guestmount can mount any kind of disk file
sudo apt-get install libguestfs-tools
guestmount --add yourVirtualDisk.vhdx --inspector --ro /mnt/anydirectory

# 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