CodeGate General CTF 2015: icbm
Category: Crypto + Pwnable Points: 1000 Solves: Description:

We've lost the launch codes! And worse, we have no way of even connecting to the server that does have them! There's only a small backdoor^Wprogram that saves sample measurements still externally reachable. It's not the codes but it's a start. Maybe that will help you?

Server : 54.65.28.239
Port : TCP 9991
Binary : http://binary.grayhash.com/885aba824d989c68e5dfaae3916f385d/sample_collector
OS : Ubuntu 14.04.1 LTS x86-64
Libc download : http://binary.grayhash.com/97f12134ddb75dad40df44e16b49a171/libs.tgz