2022-06-03 11-32-03~2.png -

Below is a technical write-up of the steps required to solve this challenge. 1. Initial File Analysis

The most common solution for this specific file involves . Many CTF creators intentionally modify the height or width values in the PNG header so the image doesn't render correctly or hides the flag at the bottom. Tool : Hex Editor (like HxD or hexedit ). 2022-06-03 11-32-03~2.png

: Run exiftool 2022-06-03 11-32-03~2.png . This often reveals interesting timestamps or software tags, though in this specific case, the metadata is usually clean or points toward a Windows screenshot. 2. Visual Inspection and Strings Below is a technical write-up of the steps

If repairing the header doesn't reveal the flag, the next step is checking for hidden data: Many CTF creators intentionally modify the height or

: Use the file command in Linux to confirm it is indeed a PNG image.

After repairing the height or running StegSolve on the "Gray Bits" or "Red 0" planes, a text string (the flag) typically appears at the bottom of the image or in a separate output window. It usually follows the format CTF{...} or FLAG{...} .

: Locate the IHDR section (usually starts at offset 0x0C ). The four bytes following IHDR are the width, and the four after that are the height.