Welcome back, my aspiring cyber warriors! This next subject might seem a bit obscure to the uninitiated–but I promise– this lesson will benefit you significantly either as a hacker or system admin. This tutorial will cover what is usually referred to as a regular expressions, or regex for short. Manipulating Text in Linux Remember, nearly […]
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This series, Linux for Hackers, was developed to help familiarize the uninitiated into the world of using Linux for hacking. If you have not read Part 1-6, you can find them here. Any self-respecting hacker must be able to script. For that matter, any self-respecting Linux administrator must be able to script. With the arrival […]
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One of the most fundamental tasks in Linux or–for that matter–any operating system, is adding and removing software. We often need to install software that did not come with our distribution or remove unwanted software. In Debian (of which Kali and Ubuntu belong to), the software package manager is aptitude. Within aptitude, the primary command […]
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In many cases, the greatest hurdle to becoming a white hat hacker is proficiency with the command line (cli) Linux. This series is designed specifically for those with aspirations of becoming a pentester/white hat hacker, but lack the basic CLI Linux skills. Aspiring Hackers just starting with Linux are often faced with the dilemma of how […]
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Welcome back, my aspiring cyber warriors! Often when students start down the path towards becoming a master hacker, they can become overwhelmed by the plethora of tools that are available to them. Often times, this can lead to frustration and inertia or worse, as the number of tools seems more than one can address and […]
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Welcome back, my aspiring cyber warriors! A firewall is one of the key security measures necessary for a secure network. Linux has a number of firewalls available to the infosec practitioner that can be crucial to securing their systems without the high cost of commercial systems. It only requires a bit of knowledge and training. […]
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Welcome back, my aspiring cyberwarriors! In a previous tutorial here, I introduced you to the Linux firewall, iptables. iptables enables you create a custom firewall for your network quickly and easily without the cost of the commercial firewalls. In this tutorial, we will build upon iptables to create an application layer IDS/IPS by combining iptables […]
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Welcome back, my aspiring security engineers! There are a multitude of reasons for using Linux but one of the most overlooked is its capabilities and versatility as a firewall. While many firms spend thousands or tens of thousands of dollars on state-of-the art firewalls, you can build your own with just few hours of your […]
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Welcome back to this series on SCADA Hacking and Security! SCADA/ICS security is critical for SO many reasons. Among the most important is that any cyber warfare in the future will likely involve some form of SCADA/ICS hacking to take down the opponent’s critical infrastructure such as electricity, water, oil refining and transportation. As we […]
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In a recent tutorial, I showed you how to use shikata_ga_nai to change the signature of a payload to evade detection by security devices (firewalls, IDS, etc.) and AV software. Shikata_ga_nai is an encoding module in Metasploit that XORs the payload through multiple iterations (the number of iterations is up to you), thereby changing the […]
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