$ cat writeup.md…
$ cat writeup.md…
sbpctf
Task: tiny ~3KB PE32 console crackme that reads 4 bytes from stdin, applies ror+xor and compares to a constant, with a PEB.BeingDebugged anti-debug tweak to the rotate amount. Solution: reverse the transform statically (cl=14 when not debugged), invert ror with rol and xor to recover the little-endian dword input 'REDACTED'.
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