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In this blog post, we will explore different types of out-of-bounds (OOB) vulnerabilities in Windows kernel drivers. Our objective is to demonstrate how simple mistakes in memory management, structure handling,…
In this blog post, we’ll explore one of the classic yet dangerous bugs—null pointer dereference. We’ll break down what it really means, build a custom vulnerable driver, and see firsthand…
In this blog post, we will explore some of the most powerful and commonly abused vulnerabilities in kernel-mode: arbitrary access primitives. From reading kernel memory and hijacking execution flows, to…
What is Double-Free? A double-free vulnerability occurs when a program frees the same memory block multiple times. This typically happens when ExFreePoolWithTag or ExFreePool is called twice on the same…
In this blog post, we’ll explore use-after-free (UAF) vulnerabilities in Windows kernel drivers. We will start by developing a custom vulnerable driver and analyzing how UAF occurs. Additionally, we will…
In this blog post, we will explore integer overflows in Windows kernel drivers and cover how arithmetic operations can lead to security vulnerabilities. We will analyze real-world cases, build a…
This blog post is a continuation of the previous entry “Harnessing the Power of Cobalt Strike Profiles for EDR Evasion“, we covered the malleable profile aspects of Cobalt Strike and…
In this blog post, we will explore buffer overflows in Windows kernel drivers. We’ll begin with a brief discussion of user-to-kernel interaction via IOCTL (input/output control) requests, which often serve…
This blog covers Windows pool memory from scratch, including memory types, debugging in WinDbg, and analyzing pool tags. We’ll also use a custom tool to enumerate pool tags effortlessly and…
What are Callbacks? Certain Windows APIs support passing a function pointer as one of its parameters. This parameter is then called when a particular event is triggered, or a scenario…
Asking any offensive security researcher how an EDR could be bypassed will result one of many possible answers, such as removing hooks, direct syscalls, indirect syscalls, etc. In this blog…
This blog post delves into the inner workings of mt_rand(), exposing its weaknesses and demonstrating how these vulnerabilities can be exploited. We’ll examine real-world scenarios and provide insights into more…
In the ever-evolving landscape of web application security testing, selecting the right tools is crucial for ensuring robust security measures. Two prominent contenders in this field are Burp Suite and…
This will be a multi-part blog series on abusing logic apps. In this blog, we will cover a few scenarios on how we can leverage our privileges on our storage…
A thread pool is a collection of worker threads that efficiently execute asynchronous callbacks on behalf of the application. The thread pool is primarily used to reduce the number of…
This article will demonstrate one situation discovered during a recent cloud penetration test that allowed us to pivot from a Microsoft cloud environment to on-premise machines via PSRemoting. Yes, you read the above…
In the evolving landscape of digital security, two prominent challenges emerge that pose significant threats to the integrity of online systems and user data: anti-cheat bypass and EDR bypass. These…
What is the Flipper Zero? The Flipper Zero can best be described as a hardware hacking multi-tool. The Flipper Zero is an open-sourced hardware, hand-held device. The ability to explore…
A new post from Security Joes brought attention to a process injection technique previously underutilized in offensive security. The RWX injection primitive, now dubbed “Mockingjay,” offers attackers an advantage to…
Winsock is an API (Application Programming Interface) that provides a standardized interface for network programming in the Windows operating system. It enables applications to establish network connections and send and…
I was recently browsing a large online retailer and came across this headline for a product: BOBLOV KJ21 Body Camera, 1296P Body Wearable Camera Support Memory Expand Max 128G 8-10Hours…
Introduction In this article, we’ll look at a Python script that uses Windows Management Instrumentation (WMI) to remotely control a target computer. The script makes use of COM to communicate…
In this blog post, we will go through the importance of each profile’s option, and explore the differences between default and customized Malleable C2 profiles used in the Cobalt Strike…
Introduction Phishing continues to be a lucrative vector for adversaries year after year. In 2022, for intrusions observed by Mandiant, phishing was the second most utilized vector for initial access.…
This article is a demonstration of memory-based detection and evasion techniques. Whenever you build a Command & Control or you perform threat hunting, there will be scenarios when you might…
Introduction Open Source Intelligence (OSINT) is becoming increasingly popular due to its effectiveness in gathering information. The purpose of this blog is to explore the use of LinkedIn, Illicit Services,…
Our team began almost five years ago to give companies the best possible digital experience. After all this time, we’re happy to report that not only are we making progress,…
EDR products have the option of using multiple sources to collect information on a Widows operating system. One of these log sources is ETW (Event Tracing for Windows). ETW consumers…
EDR (Endpoint Detection and Response) products attempt to detect misbehavior that slightly deviates from the baseline, by continuously analyzing the memory for inter-process interactions. While a few so-called EDRs are…
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