$ cat writeup.md…
$ cat writeup.md…
duckerz
Task: Reverse engineer a PyInstaller-packed binary with modified Python 3.13 interpreter containing shuffled opcodes, custom FNV-1a checker opcode, and weaponized adaptive specialization. Solution: Extract bundle, map shuffled dispatch table, reverse custom opcode 44, use LD_PRELOAD hooks to bypass adaptive specialization and brute-force flag per-position.
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