: Extract the hidden flag from a series of nested or obfuscated archives. Step 1: Initial Reconnaissance
: Right-click, extract, repeat. This is inefficient for 10+ layers. 11-20.7z
Many "nested zip" challenges use a pattern where the filename itself is the key. : Extract the hidden flag from a series
: The content might be XORed with a static key (e.g., FlareOn2024 ). Many "nested zip" challenges use a pattern where
While there isn't a single famous global CTF challenge exclusively named , this file naming convention is a hallmark of forensics and steganography challenges where players must navigate deeply nested archives or "Russian Doll" files.
Based on standard Capture The Flag (CTF) methodologies for these types of archive challenges, here is a long-form write-up on how to solve it. File Name : 11-20.7z Category : Forensics / Misc