What is HookZz ?

a hook framwork for arm/arm64/ios/android

ref to: frida-gum and minhook and substrate.

special thanks to frida-gum perfect code and modular architecture, frida is aircraft carrier, HookZz is boat, but still with some tricks

thanks for @lauos with contributing android code

Features

• solidify inlinehook without Jailbreak [new-90%]

• GOT hook with HookZz(i.e. change fishhook to inlinehook), better for APM [new-0%]

• HookZz-Modules help you to hook.

• the power to access registers directly

• hook function with replace_call

• hook function with pre_call and post_call

• hook address(a piece of code) with pre_call and half_call

• (almost)only one instruction to hook(i.e. hook short funciton, even only one instruction) [arm/thumb/arm64]

• runtime code patch, without codesign limit

• it's cute

Getting Started

Move to HookZz Getting Started [need update]

How it works ?

Move to HookFrameworkDesign.md [need update]

Why I do this?

1. for arsenal - zzdeps
2. for low-level control

Who use this?

VirtualApp An open source implementation of MultiAccount.(Support 4.0 - 8.0)

AppleTrace Trace tool for iOS/macOS (similar to systrace for Android)

Docs

Move to HookZz docs [need update]

Example

Move to HookZz example [need update]

Modules

Move to HookZzModules [need update]

Compile

build for arm64-ios

1. build libhookzz.dylib and libhookzz.static.a

jmpews at jmpewsdeMBP in ~/Desktop/SpiderZz/project/HookZz
λ : >>> make clean; make BACKEND=ios ARCH=arm64
clean all *.o success!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/allocator.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/interceptor.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/memory.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/stack.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/trampoline.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/backend-posix/thread-posix.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/backend-darwin/memory-darwin.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/arch-arm64/instructions.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/arch-arm64/reader-arm64.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/arch-arm64/regs-arm64.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/arch-arm64/relocator-arm64.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/arch-arm64/writer-arm64.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/backend-arm64/thunker-arm64.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/backend-arm64/trampoline-arm64.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/zzdeps/common/memory-utils-common.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/zzdeps/posix/memory-utils-posix.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/zzdeps/posix/thread-utils-posix.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/zzdeps/darwin/macho-utils-darwin.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/zzdeps/darwin/memory-utils-darwin.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/backend-arm64/interceptor-template-arm64.o]!
build success for arm64-ios-hookzz!

check build/ios-arm64/*.

2. build tests dylib

jmpews at jmpewsdeMBP in ~/Desktop/SpiderZz/project/HookZz/tests/arm64-ios
λ : >>> make clean; make
clean all *.o success!
build [test_hook_oc.dylib] success for arm64-ios!
build [test_hook_address.dylib] success for arm64-ios!
build [test_hook_printf.dylib] success for arm64-ios!
build [test] success for arm64-ios-hookzz!

check build/ios-arm64/*.

build for arm-ios

ignore...

build for arm-android

1. build libhookzz.so and libhookzz.static.a

jmpews at jmpewsdeMBP in ~/Desktop/SpiderZz/project/HookZz
λ : >>> make clean; make BACKEND=android ARCH=arm
clean all *.o success!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/allocator.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/interceptor.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/memory.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/stack.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/trampoline.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/backend-posix/thread-posix.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/backend-linux/memory-linux.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/arch-arm/instructions.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/arch-arm/reader-arm.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/arch-arm/reader-thumb.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/arch-arm/regs-arm.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/arch-arm/relocator-arm.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/arch-arm/relocator-thumb.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/arch-arm/writer-arm.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/arch-arm/writer-thumb.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/backend-arm/thunker-arm.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/platforms/backend-arm/trampoline-arm.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/zzdeps/common/memory-utils-common.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/zzdeps/posix/memory-utils-posix.o]!
generate [/Users/jmpews/Desktop/SpiderZz/project/HookZz/src/zzdeps/posix/thread-utils-posix.o]!
build success for arm-android-hookzz!

and check build/android-armv7

build tests ELF

jmpews at jmpewsdeMBP in ~/Desktop/SpiderZz/project/HookZz/tests/arm-android
λ : >>> make clean; make
clean all *.o success!
build [test_hook_open_arm.dylib] success for armv7-ios!
build [test_hook_address_thumb.dylib] success for armv7-ios!
build [test_hook_printf.dylib] success for armv7-ios!
build [test] success for armv7-android-hookzz!

and check build/android-armv7/*

Quick Example

test_hook_printf.c output for arm64-ios

test hook printf with try_near_jump option , and ZzEnableDebugMode() with replace_call, pre_call, post_call.

ZzThunkerBuildThunk:
LogInfo: enter_thunk at 0x100162c20, use enter_thunk_template.

ZzThunkerBuildThunk:
LogInfo: leave_thunk at 0x1001500f4, length: 240.

ZzBuildEnterTrampoline:
LogInfo: on_enter_trampoline at 0x1001502d8, length: 44. hook-entry: 0x145e0c720. and will jump to enter_thunk(0x100162c20).

ZzBuildEnterTransferTrampoline:
LogInfo: on_enter_transfer_trampoline at 0x180f1f414, length: 20. and will jump to on_enter_trampoline(0x1001502d8).

ZzBuildInvokeTrampoline:
LogInfo: on_invoke_trampoline at 0x100150304, length: 24. and will jump to rest code(0x181402a60).
ArmInstructionFix: origin instruction at 0x181402a5c, relocator end at 0x181402a60, relocator instruction nums 1
origin_prologue: 0xf4 0x4f 0xbe 0xa9 

ZzBuildLeaveTrampoline:
LogInfo: on_leave_trampoline at 0x10015031c, length: 44. and will jump to leave_thunk(0x1001500f4).

HookZzzzzzz, %d, %p, %d, %d, %d, %d, %d, %d, %d

printf-pre-call
call printf
HookZzzzzzz, 1, 0x2, 3, 4, 5, 6, 7, 8, 9
HookZzzzzzz, %d, %p, %d, %d, %d, %d, %d, %d, %d

printf-post-call