Tanner Prynn tprynn

CSAW CTF 2013 Recon Write-up -- WildcatSec

Recon 1 - Alexander Taylor

I was totally stuck on this one until we recieved the hint "Bro, do you even PNG?" Immediately we know that the key or a hint will be hidden somewhere in an image. First step for recon is always check the judges page, which usually gives you some lead or info. Download the relevant picture (ataylor.png). Then check exif data:

Tanner:csaw $ exiftool ataylor.png
ExifTool Version Number         : 9.29
File Name                       : ataylor.png
Directory : .

	void setup() {
	size(640, 480);
	background(255);
	}

	void draw() {
	base(int(random(width)),int(random(height)));
	delay(100*(30/frameCount));
	}

	// life.go
	// This file solves CSAW CTF 2013 - Misc 300
	// Challenge was to take an ASCII Game-of-Life, advance by n generations, and return the new game, then repeat

	package main

	import (
	"fmt"
	"net"
	"regexp"