Windows OS

Windows OS

Remote Kernel Debugging Windows virtual machine (Generation 2) using Serial COM running inside Hyper-v

This article is a step by step guide to attach windbg to remote windows kernel running inside generation 2 Hyper-V.

By Shubham Dubey 27 Apr 2024

Exploit Development

Nostalgic memory - An attempt to understand the evolution of memory corruption mitigations - Part 4

This article series is a technical dive into the evaluation of these memory corruption mitigations. This part is focus on memory error detection tools introduced over years.

By Shubham Dubey 7 Jan 2024

Exploit Development

Nostalgic memory - An attempt to understand the evolution of memory corruption mitigations - Part 3

This article series is a technical dive into the evaluation of these memory corruption mitigations. This part is focus on mitigations that second generation, mostly introduced after 2010.

By Shubham Dubey 7 Jan 2024

Exploit Development

Nostalgic memory - An attempt to understand the evolution of memory corruption mitigations - Part 2

This article series is a technical dive into the evaluation of these memory corruption mitigations. This part is focus of mitigations that first generation, introduced before 2010 mostly.

By Shubham Dubey 7 Jan 2024

Exploit Development

Nostalgic memory - An attempt to understand the evolution of memory corruption mitigations - Part 1

Arbitrary Code execution due to memory corruption is there since the years and still a major thing. Over the year, new protective measures have been introduced periodically to mitigate these attacks.This article series is a technical dive into the evaluation of these memory corruption mitigations.

By Shubham Dubey 7 Jan 2024

Reverse engineering

Remote debugging windows kernel driver(without symbols) using windbg

In this post we are going to learn few tips and tricks to debug a Windows kernel driver without symbols in windbg.

By Shubham Dubey 2 Jul 2021

Windows OS

Fixing DLL exports for DLL hijacking(DLL proxy)

In this post we will discuss ways to export functions from your dll for dll hijacking. Exporting functions | Dll Proxy

By Shubham Dubey 5 Aug 2020

Windows OS

Mitigate and Detect Local Privilege Escalation cause due to Symbolic Links

In this post we will discuss ways to mitigate symbolic links based Local privilege escalation exploits. We are also going to develop our own protection against these attacks.

By Shubham Dubey 31 Jul 2020

Tutorial

Developing and Installing your first Kernel driver in Windows 10(under 10 min)

Windows kernel development is painful to follow after lots of changes in driver handling by windows. In this article I will help you with developing and installing your driver in less than 10 minutes in windows 10.

By Shubham Dubey 10 Jun 2020

Exploit Development

Breaking Antivirus: Arbitrary file deletion using Symbolic link

A newly discovered symbolic link attack in many antivirus can cause arbitrary file deletion. In this blog, we will be discussing how to create the exploit and mitigate it.

By Shubham Dubey 28 Apr 2020

Exploit Development

Understanding and Exploiting Symbolic links in Windows - Symlink Attack EOP

Symbolic link can be abused to cause elevation of privilege or arbitrary write/delete. In this article we are going to understand symlink and will learn how to exploit/abuse them.

By Shubham Dubey 16 Apr 2020

Malware

Malware analysis interview questions with detailed answers (Part 4)

In this part we will discuss advance as well as miscellaneous questions for malware analysis interview. Even if you are already an experienced researcher, still these questions can be helpful for learning some new stuff.

By Shubham Dubey 26 Dec 2019

Malware

Malware analysis interview questions with detailed answers (Part 3)

Here are few more important questions with detailed answers for malware analysis interview. Topic covers in this part is Dynamic analysis, static analysis and debugging.

By Shubham Dubey 18 Sep 2018

Exploit Development

Exploiting buffer overflow in Windows application through TextBox using only Alphanumeric payload

Lets look at how to exploit seh based buffer overflow in WIndows GUI application that have input restrictions of supporting only ascii characters as input.

By Shubham Dubey 7 Sep 2018

Malware

Malware analysis interview questions with detailed answers (Part 2)

Here are few more important questions with detailed answers for malware analysis interview. Topic covers in this part is OS concepts, Programming, Assembly language and Dynamic analysis.

By Shubham Dubey 6 Aug 2018