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Update arm64-basic-assembly.md

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daem0nc0re 2024-04-19 11:32:50 +09:00 committed by GitHub
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macos-hardening/macos-security-and-privilege-escalation/macos-apps-inspecting-debugging-and-fuzzing/arm64-basic-assembly.md
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@ -409,12 +409,22 @@ ld -o shell shell.o -syslibroot $(xcrun -sdk macosx --show-sdk-path) -lSystem
To extract the bytes:
```bash
# Code from https://github.com/daem0nc0re/macOS_ARM64_Shellcode/blob/master/helper/extract.sh
# Code from https://github.com/daem0nc0re/macOS_ARM64_Shellcode/blob/b729f716aaf24cbc8109e0d94681ccb84c0b0c9e/helper/extract.sh
for c in $(objdump -d "s.o" | grep -E '[0-9a-f]+:' | cut -f 1 | cut -d : -f 2) ; do
echo -n '\\x'$c
done
```
For newer macOS:
```bash
# Code from https://github.com/daem0nc0re/macOS_ARM64_Shellcode/blob/fc0742e9ebaf67c6a50f4c38d59459596e0a6c5d/helper/extract.sh
for s in $(objdump -d "s.o" | grep -E '[0-9a-f]+:' | cut -f 1 | cut -d : -f 2) ; do
echo -n $s | awk '{for (i = 7; i > 0; i -= 2) {printf "\\x" substr($0, i, 2)}}'
done
```
<details>
<summary>C code to test the shellcode</summary>