: Players had to reverse the arc-httpd binary to find hidden endpoints or hardcoded credentials used for "spying" on the server's traffic.
: You must analyze how the server_binary processes input. Successful exploiters noted that the server expects specific packet headers and data formats before it returns the "Bye bye!" message or the flag. hAX 2023.zip
CTF Writeup: Trellix HAX 2023 - "Spying Through the Webdoor" : Players had to reverse the arc-httpd binary
Other challenges included in the HAX 2023 lineup that might be in your ZIP: : A 300-point Reversing challenge. hAX 2023.zip