The file most famously appears in the Google CTF 2022 challenge "APPNOTE.txt." Google CTF 2022: APPNOTE.txt
👋 CRHC CTF - InfoSec Write-ups
: When run through a BrainFuck decoder , it reveals the message "instagram," leading players to social media clues. hi.txt
: It serves as a hint that the archive contains many more hidden files (flag00 to flag18). The file most famously appears in the Google
: The actual flag is not inside the files but is hidden as the filename of a deleted file in the recycle bin's INFO2 record. Source : You can find a detailed walkthrough on Medium . 🤖 CRHC CTF it reveals the message "instagram