I posted a video of switching between Ubuntu, Win11, and macOS in my circle of friends, and I didn’t expect so many friends to like it and ask how I made it. I used to think this was very simple and didn’t need to write a special article about it, but now I realize: what … Read more
This article is an excellent piece from the Kanxue Forum. Kanxue Forum Author ID: xxxlion Adding a syscall to Android 12 involves quite a bit, and the information available online is often outdated (especially regarding bionic). I encountered many pitfalls along the way. I decided to write this article to document how to add a … Read more
This article is an excellent post from the Kxue Forum. Author ID: xwtwho The original intention was to brush Douyin too much and find that I couldn’t directly search in the list of liked videos, so I wanted to implement it myself and record the process as a learning note, purely for technical exchange. 1. … Read more
This article is an excellent piece from the Kanxue forum. Author from Kanxue ForumID: xwtwho A while ago, I wanted to play this game and found that there was root detection while running the emulator. I wanted to see how it was implemented and prepared to debug it, but there was no X86 library. I … Read more
1. Research and Development Background In recent years, in the military field, the application of virtual interaction technology between humans and combat environments, along with integrated systems, has greatly helped to address many practical issues in real combat training, such as high costs and environmental constraints. This has attracted the attention of military forces worldwide, … Read more
The previous article introduced the phrase “bury the lead” (Too long; didn’t read?). The issue lies with the three words! Some people specifically checked the TV show clips I provided and sent me screenshots: They also asked: The Chinese subtitles are incorrect, I understand. But what about the English subtitle that uses “lede”? Didn’t you … Read more
Abstract PLC (Programmable Logic Controller) is a fundamental control device in critical infrastructure, and its security is crucial for the stable operation of the entire control system. However, with the deepening integration of information technology and industrialization, as well as the advancement of Industry 4.0, the information security issues of industrial control systems have become … Read more
Author | Green Alliance Technology Ge Wu Laboratory Chen Jie Introduction: In firmware analysis, it is often necessary to locate the firmware’s loading address, especially the memory address where Vxworks or Linux kernel is loaded into memory, which facilitates reverse engineering tools like IDA PRO for correct disassembly and string references. In the following sections, … Read more
Author | Green Alliance Technology Laboratory Wei Fan Introduction:The router is the most widely used IoT device, and TP-LINK is the largest router manufacturer in China. Its WDR 7660 model router uses the VxWorks operating system for the first time, offering high real-time performance and reliability, but also presenting significant challenges for reverse analysis. This … Read more
In the previous article, we conducted a simple analysis of firmware. In this article, we will supplement some knowledge of Vxworks and continue our research into firmware content. As this involves operating system content, it is recommended that readers have a basic understanding of operating systems before reading this article, or refer to my article … Read more