$ cat writeup.md…
$ cat writeup.md…
duckerz
Task: Analyze BadUSB firmware (Arduino Micro ELF) to identify the attacker. Solution: Reverse AVR firmware, extract XOR key (0x48) to decrypt password, use it to decrypt AES-256-CBC payload revealing GitHub URL, enumerate repository branches to find hidden fl46 branch with flag.
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$sign in$ grep --similar