How to log CPU instructions executed by program with x64dbg?
I saw x64dbg - see the current position? question, but I can't find the way to log instructions.
Thanks!
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What do you mean by log CPU instructions? You want to track the instructions that are executed when program is paused and you execute the instructions one by one?– morsiskoCommented May 26, 2020 at 16:23
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@morsisko, I want to see what instructions are executed in current time of running program. Thanks!– DariusCommented May 26, 2020 at 16:28
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But there are thousands or maybe even million instructions executed per second while the program is running. Are you sure you want to do exactly this? Also where do you want to save the output? In the program GUI or file?– morsiskoCommented May 26, 2020 at 16:35
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Yes, @morsisko. It would be great to get in file.– DariusCommented May 26, 2020 at 17:57
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1 Answer
As far as I understand reading your comments - you want to log all the executed instructions in the file. To do this you need to:
- Pause the program, either via
Pauseoption (F12) or using breakpoints - Select
Tracemenu and thenTrace into...(Ctrl+Alt+F7) orTrace over...(Ctrl+Alt+F8). If you want to log every instruction you probably want to useTrace into... - Now in the newly created window
you can select the Log Text format, you can use the proposed 0x{p:cip} {i:cip} which will log the data to file like 0x006E8749 mov ebp, esp. It is also good idea to set the Maximum trace count and the Log File... where the data will be stored. After you are done just press OK and the x64dbg will start executing your program and log all the instructions. Keep in mind that the program won't work really fast during the trace procedure.
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This is not the recommended method of doing this anymore. You can use the trace tab to do this natively from x64dbg.– mrexodiaCommented May 30, 2020 at 20:52
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@mrexodia But can you log the instructions to file with your own format using trace tab?– morsiskoCommented May 30, 2020 at 21:58
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1When you start the trace everything is logged to a file, you can open this file later from x64dbg again– mrexodiaCommented May 31, 2020 at 2:44