Editing PE (exe) in rust. #1099

Ars-Mond · 2024-09-05T20:10:49Z

Ars-Mond
Sep 5, 2024

Good afternoon,
I am working on my project and I needed to create in my program the ability to edit a PE (exe) file. Specifically changing the size of a section and changing the value. The program is written in “rust” and I would not want to resort to clutter. Earlier I used “LIEF” in C++, I wanted to use it now. But I noticed that there is a “rust” binding.
How can I change a section in “PE” to “rust” using “LIEF” if it is possible?
Can i see some example?

p.s. I didn't find a save method in “pe::Binary”. And it's not clear on assigning a value at all.

Here is ~~my old~~ cpp code:

int main() {
    std::unique_ptr<LIEF::PE::Binary> binary = LIEF::PE::Parser::parse("input.exe");

    auto& sections = binary->sections();
    if (!sections.empty()) {
        sections[0].size(0x2000);
        sections[0].content(std::vector<uint8_t>{0x90, 0x90, 0x90});
    }

    binary->write("output.exe");

    return 0;
}