[UPDATE 9/11/17] SCORE ONE FOR THE GOOD GUYS
Shortly after this blog post was circulated on Friday, Chris Monteiro (aka @Deku_shrub) reached out about his efforts. He was successfully able to get ahold of the hosting administrator for the Equifax hackers and got the website shut down!
Here is what the website looks like now:
So good job everyone! The good guys were able to rapidly identify and shut down the bad guys before any harm was done. In a world where most Threat Intelligence shops are only open during business hours, a few good players stayed around after everyone else went home and made the world a slightly better place!
You can read my original writeup below. You can read @Deku_Shrub’s article here:
ORIGINAL POST – Finding the (Alleged) Equifax Hackers
In case you’ve been living under a rock since the afternoon of 9/7/2017, it should come as no surprise that Equifax recently disclosed one of the worst hacks in history. Equifax states that the incident potentially impacts approximately 143 million U.S. consumers, and an unspecified number of customers from the Canadian and the United Kingdom. The data includes Social Security numbers, birth dates, addresses, driver’s license numbers, ~209,000 credit card numbers, and additional personal identifying information for 182,000 consumers.
Shortly after this breach was made public, a darknet website had popped up claiming to be selling access to the Equifax data. The hackers claim that they did not anticipate receiving such a trove of data, and need to monetize the attack quickly. They state that they will release the entire data set on September 15th, 2017 (one week from the time of the writing). They are asking for 600 BTC, or ~$2.6 million USD.
These are HUGE claims, and affect nearly EVERY ADULT IN THE UNITED STATES. So, naturally, this warrants an investigation, and quickly!
The website is here, (use Tor) http://badtouchyonqysm3.onion/index.html#.
WHAT WE KNOW
The website tells us the following details:
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IT’S ALWAYS ABOUT THE CONFIGURATION!
I’m going to save you the tedium and techno-jargon. With all this stuff, you try 100 things that fail before you hit on the gem that forks over the data you’re looking for. Please just understand that every time you see that an analyst did something like this, it took A LOT of work….
What you have there is my computer using telnet to connect to port 25 of badtouchyonq7sm3.onion. This is (typically) an SMTP port. These are used for email.
What I have highlighted in that screenshot is what the server sent in response. The service listening on port 25 of badtouchyonq7sm3.onion is saying “HELLO, I am the email service for dhosting4okcs22v.onion!”
Well, that’s EXACTLY the type of misconfiguration we were looking for. After a few double-and-triple checks to make sure the data is good, we have a lead!
SMTP at dhosting4okcs22v.onion
At this point it was almost too easy. By going to dhosting4okcs22v.onion in a browser, it was quickly apparent that I was at a “make your own darknet!” service! For no cost, hackers (or anyone) can navigate to this darknet website and standup their own darknet service in seconds. This is actually a really cool service, run by Daniel in Germany!
Now, Daniel in Germany is not the bad guy here, merely the service provider. Getting angry at him would be like getting angry at gmail for a nastygram sent by email@example.com. It’s not his fault. But lets see what else we can find….
This hosting service helpfully provides a list of all the darknet websites he hosts! Since we really only care about one of them (and I’d rather save my eyes from wandering around the darknet too much in my free time) lets just Ctrl+F and see if we can find our Equifax Hackers!
So the bad guys (accidentally) told us where their server is. The service provider told us that they ARE the server for the Equifax data. That’s kinda all you could ask for!
Daniel from Germany also has a public facing website, which allows you to access your hosting service, right here! https://danwin1210.me/.
Now there are TONS of things you can do from here, I, for example, setup my own hidden service with the same platform and found the IP address for it (wondering if it would be on the same physical server as the alleged Equifax hackers).
I’ll leave the rest up to your imagination.
Oh, and I THINK the hackers maybe misconfigured a thing and leaked their BTC address I’m not sure what this is, but it LOOKS like a BTC address. *shrugs* whatever. 17vkHnkXwYaSRiLipEWNWvNqPvC51ZBswy