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{ Category Archives } malware

Protected Mode Segmentation as a powerful anti-debugging measure

The segmentation functionality has been present on the Intel processors since early stages of the CPU manufacturing. In real-mode, segments were the basis of 16-bit memory management, allowing the operating system or application to specify separate memory areas for different types of information, i.e. code, regular data, stack and so on. When a more complex […]

Windows kernel2user transitions one more time

Hello, Before I start talking (writing?) over the real subject of this short post, I would like to make some interesting announcements. My friend mawekl has recently fired up a project called Security Traps. The website consists of numerous IT-related challenges, ranging from typical JavaScript-hackmes, through Windows software Reverse Code Engineering tasks, up to C/C++ […]

Attacking the Host via Remote Kernel Debugger (Virtual Machines)

NOTE: This post is highly related to the research performed by Alex Ionescu. He is going to present the results of his work on the RECON2010 conference, during his Debugger-based Target-to-Host Cross-System Attacks speech. As it turns out, me and Alex have been working on the same subject concurrently – while I have only managed […]

TraceHook v0.0.2

Since I have recently managed to find some time and come back to TraceHook project development, I decided to mark the result of a-few-hour-long session with the next version number – 0.0.2. Until now, the application has been designed for my own purposes – it was written to handle particular problems and work under certain […]

TraceHook v0.0.1 release

Having some free time, I managed to apply some minor fixed to the TraceHook – I also decided to publish it, by the way. If there will be any bug reports / improvement suggestions, I will be more motivated to return to its development ;)