$ cat writeup.md…
$ cat writeup.md…
rev_kids20
Task: stripped x86-64 ELF key validator whose three call instructions had corrupted rel32 offsets (point at garbage addresses), causing a SEGFAULT. Solution: locate the orphaned validator function bodies still present in .text, read the little-endian dword cmp constants at input+0/+4/+8, and concatenate them into the key 345YP4CKA1G0.
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