Krypt3ia

(Greek: κρυπτεία / krupteía, from κρυπτός / kruptós, “hidden, secret things”)

Archive for October 25th, 2016

Darknet Numbers Pages Proof of Concept

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screenshot-from-2016-10-25-15-57-20

 

Numbers Station:

So with all the kerfuffle over crypto I decided to give everyone a big fuck you and do something low-tek just to mess with the narrative. Right, so you all know what numbers stations are right? Well, I decided that it was time that the internet have one all it’s own but not on the clearnet no sir-ee! I wanted a darknet spooky spooky impenetrable super scary numbers station! So I began to hatch a dastardly nation state level of fuckery that surely will have the gubment all  up in arms over my crypto darknet wizardry! I set up a site and I communicated with some people secretly and securely and no one was the wiser. Not one federal agency that I know of saw the site, no scripted scouring of the darknet cached my page that I am aware of (and I asked) and generally, I just pulled off the new age of tradecraft that the KGB should be jealous of!

Here’s how I did it.

Proof of Concept

The Plan

As I was thinking about a means of communication using the darknet to avoid prying eyes and to do so securely I came to the conclusion that I sure could use PGP and some email service out there but gee, lately those have been pwn3d too so fuck that. Instead I wanted to be more old skewl and opted for two way comms through OTP and a static page that could live on the darknet at periods of the day and night of my choosing with those I want to communicate with in the know as to timetables with, well, a timetable. Commonly on the air Numbers stations beacon at specific times of the day and week so this is kind of the same thing. So I set to making a highly portable TOR capable platform that I could take with me and connect to WIFI at hotels, bars, cafe’s, rando people’s houses etc. I could effectively have a transient site that would be hard to track and harder to narrow down where it lives because it is not in some rack somewhere stationary and waiting to be deanonymized and pwn3d.

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I opted for a netbook that I had laying around after doing the math on a Raspberry Pi. It was far cheaper to use an old old netbook I had than go spend money on a pi and it was just as portable. Once I got the laptop up and running on backbox, I then installed the TOR system and configured it for having it’s own hidden site. I then installed lighthttpd and created a very small stripped down page of text and color which I then hid the encoded text in the black space. No need to be all fancy here and it was a flourish anyway. It doesn’t have to be pretty to work and yet this lightweight site and the server it was on allowed me to communicate well enough while the whole thing was secure from being hacked. I had testing run on it and the tester was unable to own the box nor the site.

Once the testing was over I let the site run. It was up and down per specific times and communication was made using a second site on the darknet where people could post to a pasteit where we could have coded signals (basically; understood and complying) so that the communications stream would be innocuous enough using code words. You could use images on chan’s or the old trope of putting up an ad for something and even having more code in the text of that if you wanna get fancy and all.

The Tools

  • Net top laptop
  • Backbox linux distro
  • TOR
  • Lighthttpd
  • One Time Pads (plenty of places on the net to create them)
  • Timetable for uptime and downtime for comms
  • Assets to communicate with

The Tradecraft

Using this method of secret communication one could plan out all kinds of badness if they wanted to. Having a stealth site that is transient too also allows for more security but as always the people are the weak point. If an asset is caught then the means of communication is blown. Just like the analog counterparts (AM/SW Numbers Stations) this type of communication could go on untouched and unbroken for a long time because of the frequency changes, the IP address changes, and mobility of the asset. Just imagine if the analog version of Numbers Stations were actually not just in some building but in a backpack eh?

The hardest part of all of this is that you have to train your assets to use OTP and to have proper OPSEC. It can be done though, so this is a viable means of secret communication that is low tek enough yet high tek enough for the average person to easily carry out if they are determined to. It would bypass all the email shenanigans as well as texts, calls, chats, that can be intercepted by warrants to companies like Apple and AT&T. After all, how hard is it today to get a distro of linux on a box, install TOR, set up a hidden site, and start using OTP?

Wait… Ok maybe it is a little hard.

Still doable though… I mean it worked for me and my “assets”

Enjoy kids!

K.

Written by Krypt3ia

2016/10/25 at 20:41

Posted in 1984, Crypto, DARKNET