student@ubuntu:~$
ncl 3/5 30 XP

Steganography

0%

Challenge Gallery

Steganography Analysis Checklist

  1. strings file | grep -i "flag\|SKY-\|key" — Quick text search
  2. exiftool file — Check metadata and comments
  3. file file — Verify true file type
  4. binwalk file — Scan for embedded files
  5. binwalk -e file — Extract embedded content
  6. steghide extract -sf file — Try steghide (empty password)
  7. xxd file | tail — Check for appended data after EOF marker
  8. Open in Audacity → Spectrogram view (for audio files)

Tools

Tool What It Finds
strings Plaintext hidden in any file
exiftool Metadata comments, hidden fields
binwalk Embedded files, appended data
steghide Password-protected hidden data
zsteg LSB steganography in PNG/BMP
stegsolve Visual LSB analysis (Java GUI)
Audacity Spectrogram hidden images
pnginfo PNG text chunks

Unlocks

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