Hi,

I modified some codes and tried to save it. Here is what I normally do:

1. Run a program

2. Open Ollydbg and attach the program

3. Modify and click copy to executable -> all modifications

4. Click backup -> save data to file

However, at stage 3, after choosing all modifications, I am getting an error message, "unable to locate data in executable file." How do I solve this?

Thanks.

Probably You did not read the faq and search the forum

esther,
I've already looked through the pre-posts, and I posted a new one as I did not understand them.
They are talking about having virtual size = raw size, using an editor.
I do not know how to this. Please teach me.

Thanks.

So you don't know how to use a hex editor?

click click start the editor
click click open file
click click search
change whatever you want
click click save the file
click click exit

Your target is packed, attaching to it in memory, (unpacked), and trying to save to the executable, (packed), won't work - they simply don't match.

SiGiNT