dd if=data.bin of=inner.zip bs=1 skip=1024 Inner ZIP contains a single file: flag.txt (encrypted). Hidden file in listing. cat .hidden shows: password: JustInsertIt_Again_2
The naming -2- suggests this is the second version of a previous challenge ( JustInsertTheStuff.zip ), likely with added obfuscation or a different hiding technique. First, basic file inspection: JustInsertTheStuff -2-.zip
Extract embedded ZIP:
binwalk -e data.bin Or manually:
zsteg data.bin May reveal hidden text in LSB: b1,rgb,lsb,xy → flag partially. dd if=data
Here’s a write-up for the file , written in the style of a cybersecurity capture-the-flag (CTF) or reverse-engineering challenge analysis. Write-Up: JustInsertTheStuff -2-.zip 1. Challenge Overview File Name: JustInsertTheStuff -2-.zip Type: Forensics / Steganography / Scripting (presumed) Goal: Extract hidden flag from the ZIP’s internal structure or embedded data. JustInsertTheStuff -2-.zip