Overview
We are given a Windows command-line game executable named game.exe.
Reconnaissance
Extracting strings from the executable reveals Telegram bot API endpoints (/getUpdates) and fragmented token strings.
Exploitation Strategy
By analyzing assembly instructions in the score validation logic, we reconstruct the Telegram bot ID and token suffix. Querying the Telegram API directly retrieves the flag from channel updates.
Solution Code
# Reconstructed Telegram Bot Token:
# 8597443944:AAHKhN_WqZelcbtnjiD68ONqvyNe6Z7TRGc
# Query URL:
# https://api.telegram.org/bot8597443944:AAHKhN_WqZelcbtnjiD68ONqvyNe6Z7TRGc/getUpdates?limit=5
# Flag: Kaal{Sp33d_1s_K3y_t0_Fr33d0m}Flag
Kaal{Sp33d_1s_K3y_t0_Fr33d0m}