Use forensics tools like binwalk (for extracting files from within other files), stegseek or steghide (for steganography), or file signatures analysis.
Huge thanks to TryHackMe for hosting these legacy Navy challenges. If you're looking to test your analytical patience, I highly recommend giving this one a go. cct2019 tryhackme
: Iterates through each rail to reconstruct the plaintext from what otherwise looks like randomized ciphertext. Use forensics tools like binwalk (for extracting files