IsProcessorFeaturePresent or CPUID?

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Mat Quasar

Joined: 15 Dec 2024
Posts: 54

Mat Quasar 27 Dec 2024, 10:24

Core i7 wrote:

In the x64dbg debugger, you can view structures.
To do this, you need to create a *.txt script file, and select the structure name from it, specify the address.
Here is my script, and the sequence of actions with the right mouse button.
This way you can output many structures in a convenient form, including PEB/TEB and many others:

What a nice script that you have.

The KUSER_SHARED_DATA is correct at 0x7FFE0000, I have validated the ProcessorFeatures against a small program created by bitRAKE ( https://github.com/bitRAKE/odd_tests/blob/main/features.exe ).
The info there matches the results returned by his program using IsProcessorFeaturePresent function.

Description:	I created a command-line program to show 64 bytes processor features from KUSER_SHARED_DATA
Filesize:	30.68 KB
Viewed:	265 Time(s)

Description:	bitRAKE's features.exe
Filesize:	25.83 KB
Viewed:	316 Time(s)

Description:	The first 7 processor features of my PC
Filesize:	42.36 KB
Viewed:	316 Time(s)

27 Dec 2024, 10:24

Core i7

Joined: 14 Nov 2024
Posts: 28
Location: Socket in motherboard

Core i7 28 Dec 2024, 08:36

Good job!
Next is the information from CPUID, and if you want more, you can read the SMBIOS table via GetSystemFirmwareTable().

28 Dec 2024, 08:36

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