$feecting
This is the 0x regular expression to track DarkNet Hackers and stuff. Hey you can use this to find bad guys who look at bad stuff all day long. They use a sneaky 0x lol woo code that this will identify.
((0[x|y])(10[1-9]|1[1-9]\d|200))|(l[o|u]l|(\w[3e0o]{2,}))(.+)?/gi