What to look for : Look for unusual comments, "Artist" tags, or GPS coordinates that might be part of a multi-part challenge.
: [e.g., Spectrogram of Audio Stream / Appended Zip File] Tools Used : ExifTool, Audacity, Binwalk. Flag : CTFtango_down_part_3_success (Example) tango part3mp4
If the previous steps fail, the data is likely encoded using a specific steganographic algorithm. What to look for : Look for unusual