[+] challenge f8 74 7d 75 00 00 7c 61 02 63 a8 c0 f8 6c 7d 76
[+] reply     08 66 31 7f 4f 55 f3 c9 62 d3 c9 6a 13 2e d8 3d
opcode 7 -> flag=0x00 payload=44 6f 6e 65 0a 00 (b'Done\n\x00')
[.] jump returned 0x00000000 (0)
jump 0x01870000: returned 0x00000000 (0) payload=00 00 00 00