Null Byte How-Tos

Hack Like a Pro: How to Use Hacking Team's Adobe Flash Exploit

Welcome back, my novice hackers! As most of you know by now, a notorious commercial, legal hacking group named "Hacking Team" was recently hacked. As part of the hack, thousands of emails and other material on their servers was divulged. Among the material released were three zero-day exploits. In this tutorial, we will walk through the steps to load one of them, which has become known as the CVE-2015-5119 exploit.

How To: Android CyanogenMod Kernel Building: Monitor Mode on Any Android Device with a Wireless Adapter

Hi, everyone! Recently, I've been working on a pretty interesting and foolish project I had in mind, and here I'm bringing to all of you my findings. This guide's main aim is to document the process of building an Android kernel, specifically a CyanogenMod kernel and ROM, and modifying the kernel configuration to add special features, in this case, wireless adapter Alfa AWUS036H support, one of the most famous among Null Byters.

How To: Post-Exploitation Privilege Escalation

Hey everyone, I've been encountering some problems with privilege escalation when the target has an AV installed, so here's a tutorial for when the almighty "getsystem" doesn't cut it and "bypassuac" gets blocked by the AV. The machine is running Windows 7

How To: Upload a Shell to a Web Server and Get Root (RFI): Part 2

If you remember last time, we successfully uploaded picture with a small hidden PHP command executer embedded in it onto a server. Now, our goal is to take this a step further and get an interactive shell. To do this, we need to upload another file that either binds a port for us, or connects back. For this tutorial, we will use a Python reverse Meterpreter shell.

Hack Like a Pro: How to Build Your Own Exploits, Part 3 (Fuzzing with Spike to Find Overflows)

Welcome back, my hacker novitiates! In the previous two posts in this series, we looked at the basics of buffer overflows. In this post, we will look at one technique for finding buffer overflows. We will try to send random, oversized, and invalid data at a variable to see whether we can make it crash or overflow. This process is known as fuzzing. It is often the first step to developing an exploit, as we need to find some variable that is susceptible to overflowing.

How To: Build an ARP Scanner Using Scapy and Python

As you might know, there are a multitude of tools used to discover internal IP addresses. Many of these tools use ARP, address resolution protocol, in order to find live internal hosts. If we could write a script using this protocol, we would be able to scan for hosts on a given network. This is where scapy and python come in, scapy has modules we can import into python, enabling us to construct some tools of our own, which is exactly what we'll be doing here.

How To: Make a Personal Diary with Notepad!

Welcome back, my neophytes! Many of you might have a personal diary and might think Why do I spend so much time to write in the damn diary? or Why waste money on the diary, even though you would be wanting it? It's time you found out a solution!

Hack Like a Pro: Digital Forensics for the Aspiring Hacker, Part 8 (More Windows Registry Forensics)

Welcome back, my fledgling hackers! Let's continue to expand our knowledge of digital forensics, to provide you the skills necessary to be a digital forensic analyst or investigator, as well make you a better hacker overall. In your attempts to enter a system or network undetected, it is key to understand what a skilled forensic investigator can learn about you, the alleged hacker.

How To: Make a Trojan Appear Legitimate

So, we all probably know that when you run a trojan made by Metasploit, nothing will appear to happen. This is a sign for me to immediately check my Task Manager, but for an unsuspecting victim, it will just seem like a broken file. It is likely that they will delete this "broken file" once they see that it "doesn't work." In order to prevent this, we need to disguise the trojan.

SEToolkit: Metasploit's Best Friend

If you read my last tutorial on using SEToolkit, you probably know that SEToolkit is an effective way to make malicious actions look legitimate. But, that was only the beginning... the truth is, Metasploit and SEToolkit belong together, and help each other very well.

How To: Disable Autorun

Hello, Hackers/Viewers, Today's topic is going to be based on how to disable autorun for Removable Disks and Drives. Doing that is very easy, i you read the below!

How To: Make & Study Viruses

Hello, Hackers/Viewers! My name is nullf0x, and I have 4 years of experience as a hacker. You might see everyday that one of your friends or acquaintances get a new virus in their computer. You might think, How cool would it be if I made a virus? or How cool would I be if i could remove viruses from others computers for money or free?

Hack Like a Pro: How to Evade AV Detection with Veil-Evasion

Welcome back, my greenhorn hackers! One of the most important issues any hacker must address is how to get past security devices and remain undetected. These can include antivirus software, intrusion detection systems, firewalls, web application firewalls, and numerous others. As nearly all of these devices employ a signature-based detection scheme where they maintain a database of known exploits and payload signatures, the key is to either: