[Feat] - Add polymorphism

[jenaye]

it could be fun and useful to implement a system like this one

package main

import (
	"bytes"
	"compress/zlib"
	"crypto/rand"
	"io"
	"os"
)

func polymorph() {
}

func main() {
	// part of the code that will not change 
	code := []byte(`
		package main

		import "fmt"

		func main() {
			fmt.Println("pwn")
		}
	`)

	polymorph()
	var compressedCode bytes.Buffer
	writer := zlib.NewWriter(&compressedCode)
	writer.Write(code)
	writer.Close()

	key := make([]byte, 32)
	rand.Read(key)

	file, _ := os.Create("packed_binary")

	defer file.Close()
	file.Write(key)
	file.Write(compressedCode.Bytes())
}

[TomChv]

So you would like to make possible the insertion of dynamic code?

What is the difference between this and #4 ?

[jenaye]

In fact, in PR 4, we'd be using raw models that wouldn't move, only the key/encryption method and the location where the shellcode is stored would change.

In this case, the code would have to be dynamic, so that the footprint would change regularly, OR the other option would be to create a program able to modifying ASM instructions AFTER compilation, but for me this as the subject of another project.

[TomChv]

I'm confused how we could do that, you would like to insert the polymorph function during the compilation?
Who shall provide this function?

[jenaye]

It could be an option, yes but don't worry about this issue, I think the others have priority and require less effort.