Whangsaff.png Site

Specifically designed to detect hidden data in PNG and BMP files.

Brief summary of the task provided by the challenge author. Points: (Optional) Point value assigned. 2. Initial Reconnaissance

Mention any dead ends or rabbit holes (e.g., "Initially tried LSB analysis, but the data appeared random"). 4. Flag Extraction Provide the final flag format found. Flag: CTF{...} Recommended Tools for "whangsaff.png" whangsaff.png

strings whangsaff.png to find plain text hidden in the binary.

Describe the specific finding that broke the case (e.g., finding a password in the strings output or discovering a hidden ZIP file inside). Steps Taken: Detail the commands used. Example: steghide extract -sf whangsaff.png Specifically designed to detect hidden data in PNG

Start with basic commands to identify the file type. file whangsaff.png : Confirms it is a valid PNG image.

binwalk whangsaff.png : Checks for appended files or hidden archives. Flag Extraction Provide the final flag format found

Use ExifTool to look for hidden comments or unusual timestamps.