I’m not an electrical engineer and what i discuss here was an interesting learning experience, at the cost of customer satisfaction – on what happened to be something due to customer’s electrical installation fault.
Comments are appreciated. It’s always awesome to learn something from the community.
A large videowall was commissioned a few months ago. It’s a very typical installation without much to it – 5×3 configuration, each display is FullHD. Issue was simple by itself: from time to time (sometimes per hour, a few times a day… depends on.. stuff?), each of the splitters would randomly lose input signal. Catch: only a few of them would not display any symptoms and nothing was at all obvious.
Sometimes you need a workaround for SSH to an host. On my case, i cannot SSH to a ppp connected Raspberry Pi, but he can SSH to every other host. Solution is simple: ppp-Pi will SSH to a remote SSH server leaving a door open. Then i can SSH to my host, and login to my Pi. Confused? I know.
Throw any suspicious file at it and in a matter of seconds Cuckoo will provide you back some detailed results outlining what such file did when executed inside an isolated environment.
Cuckoo is free Open Source software.
Why does this matter?
Malware is the swiss-army knife of cybercriminals and any other adversary to your corporation or organization.
In these evolving times, detecting and removing malware artifacts is not enough: it’s vitally important to understand how they work and what they would do/did on your systems when deployed and understand the context, the motivations and the goals of a breach.
In this way you are able to more effectively understand the incident, respond to it and protect yourself for the future.
There are infinite other contexts where you might need to deploy a sandbox internally, from analyzing an internal breach to proactively scouting wildly distributed threats, collect actionable data and analyzing the ones actively targeting your infrastructure or products.
In any of these cases you’ll find Cuckoo to be perfectly suitable, incredibly customizable and well… free!
I’ve seen this a few times, and it’s a hack worth to share.
Many times, we found ourselves owning a car with a CD player, but no AUX-IN. Who uses CD’s these days, anyway? Noah decided to un-crapify his car audio on a 2001 Ford Focus.
The hack itself is pretty simple. Open up the unit, and you’ll find two separate modules: CD player, and radio/amplifier unit. Both are connected through a flex cable.
Noah was fortunate, since he had taps for each pin, so he didn’t had to solder directly on the plug’s pins. So, he identified ROUT, LOUT and a ground connection, soldered the pins, and he’s ready to go.
Since he tapped on the CD player’s pins, a CD must be inserted in order to trigger the input.
Easy as recording an audio CD without any tunes in int: plain old silence.
This howto uses the Raspberry Pi as the base system (tutorial is based on Debian), and Tor as the SOCKS5 Proxy.
The Objective: be anonymous on the internet, using the Raspberry Pi as a transparent SOCKS 5 proxy.
I didn’t intended this to be a completely exhaustive tutorial, but i feel it’s complete enough for the novice user to follow.
As a bonus, i’ve added info on how to use Tor as a Socks Proxy for your iPhone/iPad – no need to jailbreak.
If in any doubt following this guide, please leave a comment!
Sometimes, you need to anonymize yourself in the internet. Or you’re just paranoid and don’t want to be followed around.
Either way, a proxy is a great way to stay anonymous in the internet.
If you just want to browse around, you can download a full featured package with Tor, and its own stripped down version of Firefox called TorBrowser. There are versions for Linux, OS X, and Windows, and you’re ready to go.
But if you don’t want to install anything in every device you own, or you want to be anonymous on your iPhone or Android device, then, this tutorial is for you.
Many web developers know about SSL/HTTPS, but it is very common to see it only partially deployed, or not deployed where it should be. This basic guide by @Erik Romijn on when and how to deploy SSL/HTTPS will help you avoid the most common mistakes.