To comprehend operating principles and functions of network protocols, you have to understand their structure. The purpose of this study was to analyze a small portion of network traffic and reconstruct the network diagram based on the data extracted from it.

When you conduct pentesting audits, you rarely enjoy such luxury as admin privileges or root rights. Quite the opposite, in most situations you have to deal with antiviruses and firewalls that make it almost impossible to deliver an attack. Fortunately, emulation and virtualization magic comes to help, and, using these technologies, you can literally accomplish wonders!

Immediately after getting access to the target system, the attacker tries to blind its audit tools to remain undetected as long as possible. In this article, I will explain how to blind Sysmon in a covert way making it possible to fool the regular Windows audit. The technique is pretty simple and involves manipulations with handles and security descriptors.

In January 2021, Google released a new version of its Chrome browser. In total, 16 vulnerabilities have been fixed in it. Using one of them as an example, let’s find out how such bugs occur and examine their exploitation techniques enabling hackers to attack computers with outdated Chrome versions.

Hey, bro, are you aware that Windows is dead? Everyone is switching to free software nowadays. You’re a hacker security guy, right? So, your job is to ensure security. And here’s an interesting case to be investigated: a Linux computer and an incident that occurred with it. Or maybe no incidents occurred, but you still have to check whether everything is clean. Do you know what to do in such situations? If not, we’ll tell you now. And even if you do, we strongly recommend to review this article anyway. It provides recipes for all occasions and presents an efficient set of powerful tools. Enjoy the reading!

NTLM relay attacks aren’t new to pentesters. In most cases, the main prerequisite for a successful relay attack isn’t a vulnerability, but an infrastructure misconfiguration; this is why such attacks are often used in real-life situations. This article discusses relay attacks and techniques used to deliver them – assuming that you have already hijacked NTLM authentication.

Why NTLM authentication is still present in many infrastructures? The correct answer is: because Windows cannot exist without it. But NTLM authentication is marred by a number of problems that can be exploited by attackers. One of such problems is its vulnerability to relay attacks. This article discusses authentication hijacking techniques enabling you to deliver a relay attack.