Mangling win32 executables with a hex editor

This is a short note about how to make small manipulations in executables or DLLs in order to get rid of malware behaviour. For example, if some application pops up a dialog box which I’d like to eliminate. It can also be the final step in cracking (which is very recommended as an educational experience). [...]

Tracing API calls on Windows

Linux has ltrace. Windows has…? I was looking for applications to trace DLL calls, so I could tell why a certain application goes wrong. The classic way is to get hints from library calls. Or system calls. Or both. In the beginning, I was turned down by they idea, that most trackers only support those [...]

DCM loses lock on Virtex-4: It’s all about auto calibration

The whole story began when I decided to be kind enough to tell the Xilinx tools (ISE 9.2 in my case) that the Virtex-4 I’m targeting is a grown-up. Stepping 2, to be precise. I added CONFIG STEPPING = “2″; to the UCF file. It must have been one of those moments where I believed [...]

Canon EOS 500D: Using the wrong driver intentionally

Foreword Before I say a word, my children, I have to warn you: What I’m about to teach you here is basically how to mess up your computer. It’s how to make Windows install the wrong driver for a USB device (possibly PCI devices as well). Don’t complain about a headache when you want to [...]

Making an IE toolbar button: Notes to self (from hell)

Nothing to see here, folks… These are just some notes I wrote down for myself, in case I’ll ever want to repeat this mess.  Microsoft Visual Studio 2003 was used for developing the C++ class as well as the setup project. For testing, IE 6 was used. A button running a script or executable The [...]