How can I extract the decryption password for a Zyxel .bin firmware file using zld_fsextract?

First, extract the `zld_fsextract` binary from a .ri file and verify it is a MIPS ELF (32-bit MSB, MIPS64 rel2). Set up a MIPS emulation environment (e.g., QEMU), then run `strace -f -s 199` on the execution of `zld_fsextract` with the .bin file. The `-f` flag tracks child processes, and `-s 199` ensures the complete password string is captured. The password appears in the strace output as a long alphanumeric string, as shown in the article.