Hackers gainaccess to US power grid

Hackers gainaccess to US power grid

In a time of hacker attacks on critical infrastructure, even a run-of-the-mill malware infection on an electric utility’s network is enough to raise alarm bells. But the latest collection of power grid penetrations went far deeper: Security firm Symantec is warning that a series of recent hacker attacks not only compromised energy companies in the US and Europe but also resulted in the intruders gaining hands-on access to power grid operations—enough control that they could have induced blackouts on American soil at will. Continue reading →

Posted by DCCoder in News, 0 comments
SQLite in C#? [Part 2]

SQLite in C#? [Part 2]

Building off the previous tutorial  SQLite in C# [Part 1] we are going to get a little more in detail with SQLite and populate our database with some information that we can pull back out later.

Lets start off with inserting information into our database.  We will do this in a similar fashion as we did creating our database table.  By creating a query string, passing it to a SQLiteCommand, and then executing the command.

Continue reading →

Posted by DCCoder in Programming, Tutorials, 0 comments
SQLite in C#? [Part 1]

SQLite in C#? [Part 1]

I can’t tell you how many times I am working on an application that I want to store data in an organized fashion but I don’t want the dependency of an external server.  Maybe I want to be able to use the application offline?  Or maybe the device I am running it on doesn’t have the ability to hold a database server.

Enter the realm of SQLite.  I have used it extensively in the past with simple Python and PHP applications, but now I figured I’d give a good overview of using it with C# and .NET.

Continue reading →

Posted by DCCoder in Programming, Tutorials, 0 comments
C# 7.1 Update

C# 7.1 Update

Last month Microsoft released Visual Studio 2017.3 and with it C#’s latest minor upgrade C# 7.1!  C#’s latest update includes four new (very useful) features that I am honestly very excited about.

  • async Main method
  • default literal expressions
  • inferred tuple names

Below I’ll go into some detail on each of the new features and show some examples of each, along with how to update your current project to the new C#7.1 update.

Continue reading →

Posted by DCCoder in Programming, 0 comments

Back up and running

Welcome all!

Tis I! Sildaekar, Darkvengance, DCCoder, Ernest, whatever you feel like calling me. I managed to use the wayback machine and find a lot of my old posts, turns out a white-paper I wrote on web application security back in 2011 is surprisingly widely referenced. I’m slowly putting everything back together here and will be posting some more and writing more tutorials. I’ve been thinking about even doing some video courses on C#. Continue reading →

Posted by DCCoder in General, 0 comments

OnionScanner – A TOR Link Checker

Well last night I got an idea.  I like to checkout the TOR Hidden Services from time to time but it’s a pain in the tail just trying to find a link that actually works.  So I cooked up the OnionScanner!  It’s basically just a TOR link checker.  But feel free to check it out on the home site or on GitHub and let me know what you think.  If you have some ways to improve on it feel free to put in a request.  Even if you just want to port it to another language to make it cross-platform I would greatly appreciate it!

https://github.com/DCCoder90/onionscanner

Posted by DCCoder in Posts from old site, Projects, 0 comments

Blind Signal Analysis

So here I am just browsing through the electro-magnetic spectrum with gqrx and I come across a signal…a strong signal at that.  Obviously this piqued my curiosity so I decided to check it out.  I started out by recording just the raw signal with GNURadio and saving it to a file.  Afterwards I ran it through a few filters and put it up on the scope sink, and FFT.  In the end (with the help of a constellation plot) I was able to figure out it was FSK modulated.  I quickly demodulated the signal and through the contents into another file to check out with a hex editor. Continue reading →

Posted by DCCoder in Posts from old site, RF, 0 comments

Fun with Keyfobs!

Anyways, just like I said I would I got into trying to actually demodulate the signal for that fan remote…well as it turns out, after tons of research it seems like the method I posted about in my last entry was the easiest way to “demod” a PWM signal, just doing it by hand.  So I’ve moved on to other stuff.  So, been working on attacks against Keyfobs today (that little button you use to unlock/lock your car) and so far so good. Here’s a screenshot of a little program I’m working on to make IDR (intercept, disrupt, replay) attacks on keyfobs a little easier. When it’s done it will basically sit there and listen for you to push a button, when you do it will jam the signal and save the signal to a file. Then when you push it again it will jam that signal, save the second one to a file, the replay the first one (causing your vehicle to lock/unlock as expected). Continue reading →

Posted by DCCoder in Posts from old site, RF, 0 comments

Decoding fan remote RF signal

It’s been quite a while since I’ve last posted here so I figured I’d do a little experiment.  I haven’t even touched my SDRs in a few months, but I recently purchased a HackRF and WIFI Pineapple (they haven’t arrived yet) so I figured I’d pull out my old dongles and brush up some on SDR and DSA.  Well, I wanted to start with the simplest thing I could think of so I grabbed a remote control for our ceiling fans and decided I’d try to decode the signal. Continue reading →

Posted by DCCoder in Posts from old site, RF, 0 comments