5431023_030.jpg 【Extended】

The first step is to confirm the file type and check for visible metadata that might contain clues or the flag itself.

Use a hex editor like HxD or xxd to look for multiple headers (e.g., finding a PNG header 89 50 4E 47 inside the JPG). 3. Steganographic Decoding 5431023_030.jpg

Use ExifTool to read EXIF data. Look for suspicious entries in the Comment , Artist , or Description fields. The first step is to confirm the file

While specific flag details vary by the event (e.g., PicoCTF, Zh3r0, or PatriotCTF), a full write-up for this type of challenge generally follows these standard investigative steps: 1. Initial File Analysis 5431023_030.jpg