Challenge


We're given a single ELF binary, bank:



$ file bank
bank: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically
linked, interpreter /lib64/ld-linux-x86-64.so.2, not stripped






Running it presents a menu-driven "bank" simulator:



+------------------------------------------+
| BRONCO NATIONAL BANK v3.0 ...