this is the "fixed" version of `flagfinder`, with a little twist.

checking the binary quickly in IDA shows some XOR'ing happening against the string, followed by a `memcmp`..
simply setting a breakpoint at `0x400729` and getting the args passed to memcmp, we can find the flag.

```
ctf@ubuntu:~/working$ gdb -q ./flagFinderRedux-e72e7ac9b16b8f40acd337069f94d524
Reading symbols from ./flagFinderRedux-e72e7ac9b16b8f40acd337069f94d524...(no debugging symbols found)...done.
(gdb) b *0x400729
Breakpoint 1 at 0x400729
(gdb) r blah
Starting program: /home/ctf/working/flagFinderRedux-e72e7ac9b16b8f40acd337069f94d524 blah

Breakpoint 1, 0x0000000000400729 in ?? ()
(gdb) x/s $rax
0x7fffffffe4c0:	"9447{C0ngr47ulaT1ons_p4l_buddy_y0Uv3_solved_the_re4l__H4LT1N6_prObL3M}"
```