Jump to content

How to call the function? (iOS jailbreak)


Go to solution Solved by Saitama,

10 posts in this topic

Recommended Posts

Posted

Hi I'm trying to call a function in the game Hide N Seek : Mini Games.

Here is my code, (I just need to call any function):

function dump:

//RVA: 0x11FE288 Offset: 0x11FE288 VA: 0x11FE288
   private void Update() { }


#include <unistd.h>
#include <dispatch/dispatch.h>
#include <mach-o/dyld.h>

uintptr_t getExecAddr(uintptr_t addr)
{
 const struct mach_header* header = _dyld_get_image_header(341); // this is the library index, it's so big because I'm              using a debugger so far.
 if (header == NULL){return 0;}

 uintptr_t libLoadAddr = (uintptr_t)header;
 uintptr_t exec_addr = libLoadAddr + addr;

 return exec_addr;
}

void (*Update)();

%ctor { 

 dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{

  sleep(15); // wait for all libraries to load

  Update = (void(*)())getExecAddr(0x11FE288);

  Update();

 });
 
}

The game crashes when the moment comes to call the function. What am I doing wrong? :(

Posted

Keep It Simple - using this one


u dont need header index etc
u need library name
 

[menu setFrameworkName:"UnityFramework"];


next is

void (*Update)(void *inst) = (void(*)(void *))getRealOffset(0x11FE288);

and call of this is

Update(inst);


Why inst?
Because its not static function - and this function is called from some class
*inst is a class that has this function and the first arg is for call

  • Informative 1
Posted

Thanks for the answer! but i did not understand where to call the function, if this is done in the same place where the pointer is declared, the compiler will gile the error "use of undeclared identifier 'inst'' for Update(inst);

Posted
20 hours ago, nngot44 said:

Thanks for the answer! but i did not understand where to call the function, if this is done in the same place where the pointer is declared, the compiler will gile the error "use of undeclared identifier 'inst'' for Update(inst);

because u dont declare this variable and dont get the pointer of object created by this class

also dont know why u need to call exact this function 
in Unity games this function basically called automatically each frame (if the class inherits MonoBehaviour class)
 

  • Solution
Posted (edited)

the main logic is
var someClass = new SomeClass(); //or other c# initialisation 
someClass.SomeMethod();

SomeMethod() cant be called from no where

Example #1

public class SomeClass : MonoBehaviour 
{
	// Fields
	...

	// Properties
	...

	// Methods
	...
	// RVA: 0x100400 Offset: 0x100400 VA: 0x100400
	public static SomeClass get_Instance() { }

	// RVA: 0x100500 Offset: 0x100500 VA: 0x100500
	public void SomeMethod() // address 0x100500

	// RVA: 0x100600 Offset: 0x100600 VA: 0x100600
	public static void SomeStaticMethod() // address 0x100600
	...
}

 

void* (*SomeClass$$get_Instance)() = (void(*)())getRealOffset(0x100400);
void (*SomeClass$$SomeMethod)(void *SomeClass) = (void(*)(void *))getRealOffset(0x100500);

void* SomeClassInstance = SomeClass$$get_Instance();
SomeClass$$SomeMethod(SomeClassInstance);

 

void (*SomeClass$$SomeStaticMethod)() = (void(*)())getRealOffset(0x100600);

SomeClass$$SomeStaticMethod();

Example #2

public class SomeOtherClass : MonoBehaviour 
{
	// Fields
	...

	// Properties
	...

	// Methods
	...
	// RVA: 0x100300 Offset: 0x100300 VA: 0x100300
	public void InitWithSomeClass(SomeClass someClassInstance) { }
	...
}

 

void* SomeClassInstance = NULL;
void (*SomeOtherClass$$InitWithSomeClass_original)(void *SomeOtherClassInstance, void* someClassInstance);
void _SomeOtherClass$$InitWithSomeClass_hook(void *SomeOtherClassInstance, void* someClassInstance) 
{
	SomeClassInstance = someClassInstance;
	SomeOtherClass$$InitWithSomeClass_original(SomeOtherClassInstance, someClassInstance);
}

HOOK(0x100300, _SomeOtherClass$$InitWithSomeClass_hook, SomeOtherClass$$InitWithSomeClass_original);

 

Updated by Saitama
  • Winner 1
Posted (edited)

Example #3

public class SomeThirdClass : MonoBehaviour 
{
	// Fields
	...
	public SomeClass SomeClassField // 0x100
	...

	// Properties
	...

	// Methods
	...
	// RVA: 0x100200 Offset: 0x100200 VA: 0x100200
	public void Update() { }
	...
}

 

void* SomeClassInstance = NULL;
void (*SomeThirdClass$$Update_original)(void *SomeThirdClassInstance);
void _SomeThirdClass$$Update_hook(void *SomeThirdClassInstance) 
{
	void* someClassInstance = *(void **)((uint64_t)SomeThirdClassInstance + 0x100);
	if(someClassInstance != NULL)
    {
		SomeClassInstance = someClassInstance;
    }
	SomeThirdClass$$Update_hook(SomeThirdClassInstance);
}

HOOK(0x100200, _SomeThirdClass$$Update_hook, SomeThirdClass$$Update_original);

 

 

Updated by Saitama
  • Winner 1
Posted

Thanks for these examples, I'm new and still learning how to make dylib libraries for games. I tried to call the Update function because I thought it would be the easiest to call :)

Posted (edited)

I used your advice and wrote this code (i hope my method returns the correct address) :

#include <unistd.h>
#include <dispatch/dispatch.h>
#include <mach-o/dyld.h>

uintptr_t getExecAddr(uintptr_t addr)
{
    const struct mach_header* header = _dyld_get_image_header(341);
    if (header == NULL){return 0;}

    uintptr_t libLoadAddr = (uintptr_t)header;
    uintptr_t exec_addr = libLoadAddr + addr;

    return exec_addr;
}

%ctor 
{

	dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{

		sleep(150);

		void* (*VELights$$get_Instance)() = (void* (*)())getExecAddr(0x12FD104);
		void (*VELights$$ResetMainSunLightAngle)(void *VELights) = (void(*)(void *))getExecAddr(0x12FD4B8);

		void* VELightsInstance = VELights$$get_Instance();
		VELights$$ResetMainSunLightAngle(VELightsInstance);
		
	});	

}	

 

In the debugger, I always get rather strange errors, for example, from the libobjc.A.dylib'objc_retain library. 

I thought it would be easier for me if it was possible to disable ASLR for this game. Is it possible to do this on iOS 13?

 

Updated by nngot44
Posted

basically start from doing some easier things
for example change values from 
public int get_someGold();
and setter
public void set_someGold(int goldVal);

its will be easier to understand that call some function

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Our picks

    • Go Go Wolf! Cheats v8.1 +4
      Modded/Hacked App: Go Go Wolf! By MONSTER PLANET Corp.
      Bundle ID: com.MonsterPlanet.WolfGame
      App Store Link: https://apps.apple.com/us/app/go-go-wolf/id6572283560?uo=4

       

      📌 Mod Requirements

      - Jailbroken iPhone or iPad.
      - iGameGod / Filza / iMazing.
      - Cydia Substrate, ElleKit, Substitute or libhooker depending on your jailbreak (from Sileo, Cydia or Zebra).

       

      🤩 Hack Features

      - God Mode
      - Multiply Attack
      - Instant Skills
      - Freeze Currencies

       

      Non-Jailbroken Hack: https://iosgods.com/topic/198033-go-go-wolf-v52-jailed-cheats-4/

       

      ⬇️ iOS Hack Download Link: https://iosgods.com/topic/198032-go-go-wolf-cheats-v52-4/
        • Winner
        • Like
      • 30 replies
    • Cat Quest III v1.4.6 +14 Jailed Cheats [ Unlimited Currencies ]
      Modded/Hacked App: Cat Quest III By The Gentlebros Pte. Ltd.
      Bundle ID: com.thegentlebros.project-star
      App Store Link: https://apps.apple.com/us/app/cat-quest-iii/id1551304183?uo=4

       


      🤩 Hack Features

      - God Mode
      - One-Hit Kill
      - Speed Multiplier
      - Time Scale Multiplier
      - Unlimited Gold -> Head into Settings and toggle the Restore Purchases button.*
      - Unlimited Crystals -> Head into Settings and toggle the Restore Purchases button.*
      - Unlock All Equipment -> Head into Settings and toggle the Restore Purchases button.*
      - Unlock All Skills -> Head into Settings and toggle the Restore Purchases button.*
      - Unlock All Quest Items -> Head into Settings and toggle the Restore Purchases button.*
      - Level Up x1 -> Head into Settings and toggle the Restore Purchases button.*
      - Level Up x10 -> Head into Settings and toggle the Restore Purchases button.*
      - Level Up x50 -> Head into Settings and toggle the Restore Purchases button.*
      - Unlock All Ship Blueprints -> Head into Settings and toggle the Restore Purchases button.*

      * - Only enable 1 feature at a time.
        • Informative
        • Agree
        • Thanks
        • Winner
        • Like
      • 10 replies
    • Cat Quest III v1.4.6 +14 Cheats [ Unlimited Currencies ]
      Modded/Hacked App: Cat Quest III By The Gentlebros Pte. Ltd.
      Bundle ID: com.thegentlebros.project-star
      App Store Link: https://apps.apple.com/us/app/cat-quest-iii/id1551304183?uo=4

       
       

      🤩 Hack Features

      - God Mode
      - One-Hit Kill
      - Speed Multiplier
      - Time Scale Multiplier
      - Unlimited Gold -> Head into Settings and toggle the Restore Purchases button.*
      - Unlimited Crystals -> Head into Settings and toggle the Restore Purchases button.*
      - Unlock All Equipment -> Head into Settings and toggle the Restore Purchases button.*
      - Unlock All Skills -> Head into Settings and toggle the Restore Purchases button.*
      - Unlock All Quest Items -> Head into Settings and toggle the Restore Purchases button.*
      - Level Up x1 -> Head into Settings and toggle the Restore Purchases button.*
      - Level Up x10 -> Head into Settings and toggle the Restore Purchases button.*
      - Level Up x50 -> Head into Settings and toggle the Restore Purchases button.*
      - Unlock All Ship Blueprints -> Head into Settings and toggle the Restore Purchases button.*

      * - Only enable 1 feature at a time.
        • Thanks
        • Winner
        • Like
      • 9 replies
    • Prince of Persia Lost Crown v1.1.2 +13 Cheats [ God / O-HK ]
      Modded/Hacked App: Prince of Persia Lost Crown By Ubisoft
      Bundle ID: com.ubisoft.princeofpersia.thelostcrown.mobile.action.adventure.platform
      iTunes Store Link: https://apps.apple.com/us/app/prince-of-persia-lost-crown/id6504011865?uo=4

       
       

      🤩 Hack Features

      - God Mode
      - One-Hit Kill -> Linked. Use with God Mode.
      -- Full Game Unlocked
        • Informative
        • Agree
        • Haha
        • Thanks
        • Winner
        • Like
      • 195 replies
    • Raise a Joseon Hunter ( 조선헌터 키우기 ) v1.4.2 +6 Jailed Cheats [ Mega Hack ]
      Modded/Hacked App: 조선헌터 키우기 By GROUP1024 Co., Ltd
      Bundle ID: com.group1024.korea
      App Store Link: https://apps.apple.com/kr/app/%EC%A1%B0%EC%84%A0%ED%97%8C%ED%84%B0-%ED%82%A4%EC%9A%B0%EA%B8%B0/id6746847732?uo=4

       


      🤩 Hack Features

      - God Mode
      - One-Hit Kill
      - Attack Speed
      - Unlimited MP
      - Gold Multiplier
      - XP Multiplier
      • 5 replies
    • Raise a Joseon Hunter ( 조선헌터 키우기 ) v1.4.2 +6 Cheats [ Mega Hack ]
      Modded/Hacked App: 조선헌터 키우기 By GROUP1024 Co., Ltd
      Bundle ID: com.group1024.korea
      App Store Link: https://apps.apple.com/kr/app/%EC%A1%B0%EC%84%A0%ED%97%8C%ED%84%B0-%ED%82%A4%EC%9A%B0%EA%B8%B0/id6746847732?uo=4

       


      🤩 Hack Features

      - God Mode
      - One-Hit Kill
      - Attack Speed
      - Unlimited MP
      - Gold Multiplier
      - XP Multiplier
      • 2 replies
    • Coop TD v1.4.3 +3 Jailed Cheats [ Damage + More ]
      Modded/Hacked App: Coop TD By Supermagic Inc.
      Bundle ID: com.supermagic.ios.cooptd
      iTunes Store Link: https://apps.apple.com/us/app/coop-td/id6503702666?uo=4

       


      🤩 Hack Features

      - Damage Multiplier
      - Unlimited In-Game Gold
      - Unlimited In-Game Main Stones
        • Informative
        • Thanks
        • Winner
        • Like
      • 63 replies
    • Coop TD v1.4.3 +3 Cheats [ Damage + More ]
      Modded/Hacked App: Coop TD By Supermagic Inc.
      Bundle ID: com.supermagic.ios.cooptd
      iTunes Store Link: https://apps.apple.com/us/app/coop-td/id6503702666?uo=4

       


      🤩 Hack Features

      - Damage Multiplier
      - Unlimited In-Game Gold
      - Unlimited In-Game Main Stones
        • Informative
        • Agree
        • Winner
        • Like
      • 86 replies
    • Idle Zombie Miner: Gold Tycoon v2.252.2070 +1++ Jailed Cheat [ Currencies ]
      Modded/Hacked App: Idle Zombie Miner: Gold Tycoon By VISTREX LIMITED
      Bundle ID: com.zombie.idleminertycoon
      iTunes Store Link: https://apps.apple.com/us/app/idle-zombie-miner-gold-tycoon/id6471983323?uo=4


      Hack Features:
      - Unlimited Currencies -> Will increase instead of decrease.


      Jailbreak required hack(s): [Mod Menu Hack] Idle Zombie Miner: Gold Tycoon v2.53.1001 +1++ Cheat [ Unlimited Currencies ] - Free Jailbroken Cydia Cheats - iOSGods
      Modded Android APK(s): https://iosgods.com/forum/68-android-section/
      For more fun, check out the Club(s): https://iosgods.com/clubs/
        • Informative
        • Agree
        • Haha
        • Thanks
        • Winner
        • Like
      • 116 replies
    • Idle Zombie Miner: Gold Tycoon v2.252.2070 +1++ Cheat [ Currencies ]
      Modded/Hacked App: Idle Zombie Miner: Gold Tycoon By VISTREX LIMITED
      Bundle ID: com.zombie.idleminertycoon
      iTunes Store Link: https://apps.apple.com/us/app/idle-zombie-miner-gold-tycoon/id6471983323?uo=4


      Hack Features:
      - Unlimited Currencies -> Will increase instead of decrease.


      Non-Jailbroken & No Jailbreak required hack(s): [Non-Jailbroken Hack] Idle Zombie Miner: Gold Tycoon v2.53.1001 +1++ Jailed Cheat [ Unlimited Currencies ] - Free Non-Jailbroken IPA Cheats - iOSGods
      Modded Android APK(s): https://iosgods.com/forum/68-android-section/
      For more fun, check out the Club(s): https://iosgods.com/clubs/
        • Informative
        • Agree
        • Haha
        • Thanks
        • Winner
        • Like
      • 76 replies
    • MeChat - Interactive Stories v4.37.2 +5 Jailed Cheats [ Unlimited Gems ]
      Modded/Hacked App: MeChat - Interactive Stories By IMPONILOX LIMITED
      Bundle ID: world.playme.mechat
      App Store Link: https://apps.apple.com/us/app/mechat-interactive-stories/id1536157979?uo=4

       

      📌 Mod Requirements

      - Non-Jailbroken/Jailed or Jailbroken iPhone or iPad.
      - Sideloadly or alternatives.
      - Computer running Windows/macOS/Linux with iTunes installed.

       

      🤩 Hack Features

      - Unlimited Gems -> Will increase instead of decrease.
      - Unlock All Photos
      - Unlock All Audio Clips
      -- VIP Enabled

      VIP
      - Unlimited Gems -> Earn some then disable this feature. DO NOT SPEND ANY GEMS WHILST THIS FEATURE IS ENABLED!
        • Informative
        • Agree
        • Haha
        • Thanks
        • Winner
        • Like
      • 809 replies
    • MeChat - Interactive Stories v4.37.2 +5 Cheats [ Unlimited Gems ]
      Modded/Hacked App: MeChat - Interactive Stories By IMPONILOX LIMITED
      Bundle ID: world.playme.mechat
      App Store Link: https://apps.apple.com/us/app/mechat-interactive-stories/id1536157979?uo=4

       

      📌 Mod Requirements

      - Jailbroken iPhone or iPad.
      - iGameGod / Filza / iMazing.
      - Cydia Substrate, ElleKit, Substitute or libhooker depending on your jailbreak (from Sileo, Cydia or Zebra).

       

      🤩 Hack Features

      - Unlimited Gems -> Will increase instead of decrease.
      - Unlock All Photos
      - Unlock All Audio Clips
      -- VIP Enabled

      VIP
      - Unlimited Gems -> Earn some then disable this feature. DO NOT SPEND ANY GEMS WHILST THIS FEATURE IS ENABLED!
        • Informative
        • Agree
        • Haha
        • Thanks
        • Winner
        • Like
      • 327 replies
×
  • Create New...

Important Information

We would like to place cookies on your device to help make this website better. The website cannot give you the best user experience without cookies. You can accept or decline our cookies. You may also adjust your cookie settings. Privacy Policy - Guidelines