Static byte pattern scanner with binary patcher for MacOS. Unlike most byte pattern scanners, it's static one. It allows to search binaries by byte patterns with optional wildcard like F9 1F ?? 82 12 where ?? is wildcard byte. It can also patch specified address with new bytes.

Additionally, pattern searching and patching can be combined and done automatically by adding json object, called tasks or hooks, each one can be either patching or regular search task. There is also possbility to define distance between pattern and patch location. It allows fairly automatic binary patching.

Repository hexbytescanner-hooks with some useful/example hooks published by contributors.

git clone https://github.com/karek314/hexbytescanner
cd hexbytescanner && bash build.sh

Command line scanning
scan BinaryName Pattern

./hexbytescanner scan MyApp E103??AA????E0

Command line patching
patch BinaryName Address NewBytes DistanceFromAddress

./hexbytescanner patch MyApp 0x184dfc 1F2003D5 0x1

Json file based automated task/hooks queues
JsonFile BinaryName

./hexbytescanner test.json TestApp

Where json file contains array of objects like

{
   "pattern": "F91F8212????00321C3A8252??00009018932491744A40B90700????7A4A00B921008252E2030032E00313AAA0023FD6744A00B9",
   "patchBytes": "1F2003D5",
   "patchDistance": "0x1"
 }

This example looks for address with pattern and will patch (found address + patchDistance) with patchBytes. In this case, it's replacing instruction bl with nop on Aarch64.

However, if patchBytes is empty. It work only in scan mode and results will be shown in console output.

{
   "pattern": "8252????8A1A2AC103B97F6200B9",
   "patchBytes": "",
   "patchDistance": "0x1"
}

Patterns and patch bytes can be either submitted without spacing as "F91F8212????00" or "F9 1F 82 12 ?? ?? 00"

MIT