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SoftIcethecommandcode | 程序非源代码 2021-05-13 393 0star收藏 版权: . 保留作者信息 . 禁止商业使用 . 禁止修改作品
IceProbe,IceProbe is a utility that allows live tracing and analysis of SoftIce commands using the full capability of SoftIce itself. It is a tool strictly for code exploration, designed to be able to trace running Softice code in order to augment IDA analysis. It is debugging a debugger, in order to answer the question "How does Softice work?"
There is much that can be learned about system internals by studying Softice code. This utility will give a live hands-on method of tracing and exploring the code for the first time. It can also act as a GUI front-end for Softice, as bizarre as that might sound.


Concept:

Any SoftIce command typed into the command line window is stored in a global string buffer. The command string consists of the command name and any arguments. The buffer is passed to the individual function where it is parsed, and the command is executed.

We can selectively replace instances of this global buffer pointer with one of our own and call Softice commands directly from a GUI interface. An (optional) embedded breakpoint which will pop-up Softice is written into our driver code immediately before calling the command, which allows us to start tracing the Softice command.

While live tracing you have full use of all other Softice commands at your disposal, including the ability to set breakpoints in Softice code itself. There is an additional modification which will force the "Idt" command to expose the addresses of the Softice IDT hooks so you can also locate and analyse those various handlers as well.

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