This article discusses Threadless Injection: a technique making it possible to make injections into third-party processes. At the time of writing, it effectively worked on Windows 11 23H2 x64 running on a virtual machine isolated from the network with OS security features enabled.
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Kali Ashes: Hardening hacker distribution and mastering silent pentesting techniques
Kali Linux is extremely popular among pentesters. However, if you penetrate into a network using default settings of this distribution, it would create much noise on the air, which won’t go unnoticed. This article discusses Kali hardening and explains how to make Linux as…
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Process Ghosting. Circumvent antiviruses in the most dangerous way
One of the main priorities for hackers is to hide the execution of their malicious code. This article explains how to start processes using the Process Ghosting technique and discusses operation principles of malware detection systems.
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Tunnels Nightmare: ISP protocols expand your pivoting capacity
The modern TCP/IP protocol stack includes plenty of tunneling protocols. Normally, they are used to expand production networks and build infrastructure. But in this research, I will use them as pentesting tools.
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Evilginx + Gophish. Deploying phishing simulation infrastructure and bypassing 2FA
In the course of a pentesting audit, you often have to simulate phishing attacks. This article provides a step-by-step guide to deploying infrastructure for such simulation. You will learn how to create a mail server from scratch, install and configure the Evilginx reverse proxy, and then integrate…
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MikroTik Daymare. Protecting MikroTik equipment from hacker attacks
MikroTik devices are widely used in corporate networks, but in most cases they aren’t properly configured, which opens the door to various attacks. This article discusses basic RouterOS security concepts, including protection against spoofing, traffic handling, and attacks on control panels.
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Blinding Sysmon completely: Manipulating ETW objects to evade monitoring
Immediately after getting access to the target system, the attacker tries to disable its audit tools to remain undetected as long as possible. In this article, I will explain how to blind Windows monitoring tools by manipulating the Event Tracing for Windows (ETW) subsystem.
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NFC from a hacker’s perspective. Attacking Mifare-based PACS
At some point, simple identifiers cannot ensure proper access control anymore, and consumers switch to a more advanced solution: Mifare. But are Mifare-based devices actually as secure as the manufacturer claims? Let’s figure it out!
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MikroTik Nightmare. Pentesting MikroTik network equipment
This article discusses the security of MikroTik equipment from the attacker’s perspective. Being very popular, MikroTik products are often attacked by hackers. The primary focus of this research is post-exploitation. Also, I will touch on issues plaguing RouterOS defense mechanisms that are exploited by…
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Save me. How to protect networks against spoofing attacks
Spoofing attacks are simple to deliver, and their impact is gross. This article discusses such attacks from the security perspective. The main challenge is to intelligently integrate network security solutions with production without disrupting business processes. Such integration requires a good understanding of the network…
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Caster Remix. Windows post-exploitation with virtual MikroTik
Recently I discovered a new way to implement L2 tunneling against Windows networks. Inspired by the spying penguin concept, I am going to demonstrate a fresh approach to Windows post-exploitation involving a MikroTik Cloud Hosted Router (CHR) that enables you to perform pivoting and provides L2…
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JavaScript al dente. Fuzzing JS engines with Fuzzilli
Hey guys! Today, pasta is on the menu! You will learn how to identify vulnerabilities in JavaScript engines using the Fuzzilli fuzzer. After a brief theoretical introduction, you’ll jump directly to practice. Let’s assemble the required tools and start fuzzing.
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PACS from a hacker’s perspective. Attacks on RFID-based physical access…
Hacking electronic turnstiles installed at building entrances is a popular trick shown in many movies. This article discusses RFID-based physical access control systems (PACS) and demonstrates how easily the most commonly used identifier, EM4100, can be faked.
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Gain sight of a remote network! Reconstructing the connection diagram…
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.
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Virtual magic. Emulation and virtualization technologies in pivoting
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…
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Blinding Sysmon: How to disable Windows monitoring in a covert…
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.…
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Liquid Chrome. ‘Use After Free’ bug in the Blink engine
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…
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Penguin’s secretes: Evidence collection in Linux
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.…
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Your guide to NTLM relay, Part 2: Delivering relay attacks
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…
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Your guide to NTLM relay: Hijacking NTLM authentication to deliver…
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…
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