ELF x64 golang basic

Root-me challenge: Find the validation password.

  1. ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, Go BuildID=2cf6d44559551c6185a598406fb67318d5b2396e, with debug_info, not stripped

  2. Analysis

  • Golang calling convention uses the stack for parameters and return values.

  • There is a bytes.Compare call between the xored flag and the key

  1. Dump the xored flag

  2. rexor it with the key