Logging time

[Rwkeith]

Hey! This is a great project and I've been reading through the well written documentation. However, I'm trying to log time data with each print I do using the scripting engine. I've read this portion here

By default, HyperDbg sends the current time of the system with each message packet from kernel-mode to user-mode, if you set ShowSystemTimeOnDebugMessages to FALSE then it no longer sends date and time along with each message.

Is this time not exposed to the scripting engine? If not, may be a good addition to have.

Thanks

[SinaKarvandi]

Hi,
Thanks a lot for taking the time to read the documentation.
The exact meaning in documentation is for an internal logging function called LogInfo (that is not exposed to the script engine).

But if it matters to you, I'll add timing functions separately to the script engine, and I'll notify you on this thread.
I also add some descriptions to clarify that constant usage in the documentation.

Thanks again,

[Rwkeith]

Thanks for the response and clarification. I think this would extend the scripting interface nicely!

[SinaKarvandi]

Hi
Sorry for the very late answer.

I was thinking about the best approach we can implement such a feature. I think the best way to support it, is through a printf style format string. However, HyperDbg's script engine doesn't support TYPEs yet.

Another approach is exporting the time via a script engine function, and the user simply uses a %s with the result of that function. This also brings two problems.

1. It's not a flexible approach. The user is forced to use our exported format.
2. We need to allocate a small buffer for each core so we can store the result of the time export. (of course, this is not a clean approach).

Thus, I think it's better to let script engine developers finish their tasks and add support to the structure and types. After that, we can have a clean and flexible implementation of the printf-style timing.

But let's have a solution for you so that you can use HyperDbg with timing format for now.

Go to the source code and remove the following line :

HyperDbg/hyperdbg/include/ScriptEngineEval.h

Line 1747 in cb711d3

LogSimpleWithTag(Tag, ImmediateMessagePassing, FinalBuffer, strlen(FinalBuffer) + 1);

and replace it with this code:
LogInfo("%s", FinalBuffer);

Now, compile the HyperDbg, and your result of printfs (both in eval command and in events), will be changed to :

That's a dirty patch for you. I'll try to add this functionality to the HyperDbg whenever we finish supporting types in the HyperDbg's script engine.