assembly - OllyDbg - How can I add more instruction space to a .exe file?

Question

I want to make a "codecave" in an executable file using OllyDbg, but my issue is that I have no idea how can I add more space where I could write my own function to the file. So far I've only tried to extend it by adding zeros to the end of the file using a Hex editor, but after reopening it with Olly I didn't got more space for instructions.

Strangely I couldn't find any information about this topic on the internet, so I hope some of you here can help me out.

question from:https://stackoverflow.com/questions/65893015/ollydbg-how-can-i-add-more-instruction-space-to-a-exe-file

Answer 1

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