2022-06-03 11-32-03~2.png -
: If you change the dimensions manually, the CRC (Cyclic Redundancy Check) at the end of the chunk will be invalid. You can use a tool like PCRT (PNG Check & Repair Tool) to automatically calculate the correct dimensions based on the existing CRC. 4. Steganography Check
: Run strings 2022-06-03 11-32-03~2.png . In many versions of this challenge, the flag or a hint is appended to the end of the file in plain text, past the IEND chunk.
: 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. 2022-06-03 11-32-03~2.png
: Use binwalk -e 2022-06-03 11-32-03~2.png to see if another file (like a .zip or .txt ) is embedded inside the image data. 5. Final Flag Extraction
The first step in any forensics challenge is to verify the file type and examine basic metadata. : If you change the dimensions manually, the
: 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
: Use StegSolve to cycle through the color planes. Often, the flag is hidden in the Least Significant Bits (LSB) of the Red, Green, or Blue channels. Steganography Check : Run strings 2022-06-03 11-32-03~2
The filename is associated with a common digital forensics challenge, often featured in Capture The Flag (CTF) events or forensics training modules. The goal of this specific challenge is typically to recover hidden data from a seemingly corrupted or standard image file.