Change the hex value

[space]

Using batch script how can I change the value of the exe file without hex editor?
I need to change the value 84 to 85 in offset 000B8F40 to enable or disable one switch relay http://postimg.org/image/4z59ac2vx/


Thank you

[foxidrive]

Is there only one 84 value in the file?

[space]

Is there only one 84 value in the file?

yes

[foxidrive]

Code: Select all

repl \x84 \x85 xm <file.bin >filenew.bin

This uses a helper batch file called `repl.bat` (by dbenham) - download from: https://www.dropbox.com/s/qidqwztmetbvklt/repl.bat

Place `repl.bat` in the same folder as the batch file or in a folder that is on the path.

[space]

Code: Select all

repl \x84 \x85 xm <file.bin >filenew.bin

This uses a helper batch file called `repl.bat` (by dbenham) - download from: https://www.dropbox.com/s/qidqwztmetbvklt/repl.bat

Place `repl.bat` in the same folder as the batch file or in a folder that is on the path.

More easy to understand the code is there?
Thank you

[Squashman]

More easy to understand the code is there?

Could you rephrase that. You have a question mark at the end of your sentence but the sentence really isn't phrased as a question.

[space]

More easy to understand the code is there?

Could you rephrase that. You have a question mark at the end of your sentence but the sentence really isn't phrased as a question.

is there any code more easier for me to understand?

[Squashman]

More easy to understand the code is there?

Could you rephrase that. You have a question mark at the end of your sentence but the sentence really isn't phrased as a question.

is there any code more easier for me to understand?

What don't you understand about the code you were given?
Editing a binary file pretty much requires some type of 3rd party program. You are not going to do it with native batch file commands.

[ShadowThief]

What's wrong with using a hex editor?

[space]

I need to automate but first I need to understand and ajust the code for my relay board. the code does more than I need.

[Squashman]

I need to automate but first I need to understand and ajust the code for my relay board. the code does more than I need.

Not sure what you mean. It only does one thing. It replaces the hex value in file and outputs it to a new file.

[npocmaka_]

you can try also with certutil -> http://ss64.org/viewtopic.php?id=1562

At the moment I have no complete script that will replace your 84 value but it easy can be created with pure batch....

[foxidrive]

is there any code more easier for me to understand?

I wasn't sure what you meant either - but I think you are trying to decipher how repl.bat works internally.

Use it as a tool, like findstr or sort or wmic etc, and just learn the basic syntax that you need, for now.