Jump to content

[TUTORIAL] How To use GikDbg - LLDB for Windows!


10 posts in this topic

Recommended Posts

Updated

What is GikDbg?
GikDbg is a mobile platform assembly-level debugger, which is an application debugging tool for security researchers.It is based on: OllyDbg (32-bit assembler level analysing debugger for Microsoft? Windows); GDB (GDB, the GNU Project debugger); LLVM (collection of modular and reusable compiler and tool-chain technologies).
 

What features can GikDbg support?

  • ELF / Mach-O executable file static analysis;
  • Android / iOS App dynamic debugging;
  • Android / iOS remote console;
  • ARM assembler;
  • ARM disassembler;
  • Device file uploading and downloading;
  • Built-in GDB and LLDB;
  • Support for memory breakpoint, software breakpoint, conditional breakpoint;
  • Support for multi-threaded debugging;
  • Support for assembly code level file patching.

Download GikDbg

In this tutorial we will describe how to use the debugger gikdbg iOS App, App calculator explain our system as an example to explain the operation and Step by step, as well as some notes here.

 

Step 0. Front Description

 

Mobile client: iPhone 5, iOS 7.0.4, gikir_iserver v1.1.build140520.1;
PC side: ParallelDesktop virtual machine, Windows 8.0, gikdbg v1.1.build140520.1; 

 

Step 1. Connect the device.

Click on the icon for the phone side gikir_iserver run the service program, PC-side execution iDebug / Device / Login (USB) menu, get the following output shows a successful connection:
app-connect-300x9.jpg

If the situation can not connect appears in this step, please check them one by one:

1) Is there a process before lldb.exe left hand to kill and then restart gikdbg connection;
2) whether the 6080 port gikir_iserver used was left before gikir_iserver_root or / bin / sh process takes manually kill or restart the device and then restart gikir_iserver;
3) Are there other programs that use the Apple USB drive services and gikdbg conflicts, such procedures manual to kill and then restart gikdbg connection.

After the connection is successful, we can choose a different debug mode by iDebug / Option / Debugger, their characteristics are as follows:

GDB mode - debugging process equipment on 32 main thread or when debugging is recommended to use the specified function, the process of debugging symbols provided by gikdbg;
LLDB mode - recommended depth debugging process, this model is loaded for a long time, LLDB can analyze the information it needs some symbols, symbolic debugging process by gikdbg and lldb;
LLDB FAST mode - when the confirmatory debugging recommended, this mode load time is short, the process of debugging symbols provided by gikdbg. This mode is increased relative to the GDB mode debugging 32 64 equipment and multi-threaded code debugging features.

 

Step 2. Select the App Process
In iDebug / File / Attach menu pop-up window in the process list to find the calculator process:
app-proclist-300x193.jpg
Double-click or click Attach complete step process of selection;

 

Step 3. determine the patch operation
If this is the first time to debug the App, the confirmation dialog box will pop up as follows:
app-patch-300x173.jpg

Patch App for initial commissioning of conduct are:
1) Delete MH_PIE logo to process each time you load the base is fixed;
2) Record the UUID value of App;
3) If it is FAT formatted App disabled lowest and the highest schema version;
4) If it is then decrypt the encrypted App App;
5) into debugging aids dynamic library gikir_iserver_injecter.dylib;

You can patch above the list of processes and the console menu program list, right-of unpatch removed App restored to its original state before the patch.
If you choose to cancel will not be able to debug App, if you choose determines the implementation of the operation and return the entire patch App folder to the $ (GIKDBG) / iosapp / encrypted directory, decrypted App executable file back to $ (GIKDBG) / iosapp / decrypted directory. At this point can be decrypted executable statically analyzed by ida or gikdbg.
After the patch properly executed will be prompted to restart the App:
app-patch-ok-300x215.jpg
 
After the restart App repeat Step2 enter Step4.

 

Step 4. Mount App Process
app-attaching-300x170.jpg

This step GDB and LLDB FAST mode will be faster, LLDB mode will wait about 2-10 minutes, according to the size and complexity of the App;
If a long time (5 minutes) to wait for the main window yet into the CPU, you can manually cancel the wait.

 

Step 5. The main window into the Cpu

 

All goes as follows CPU will enter the main interface:
app-cpumain-300x190.jpg

 

Step 6. Select the main module
Execution iDebug / View / Module get the following window:
app-modlist-300x147.jpg
Select the main module and then double jump to the main module CPU window.

 

Step 7. Check the main module information
In the main module CPU to perform the disassembly listing window Right View object and View mach-o can be static data analysis:
app-maininfo-300x212.jpg

 

Step 8. breakpoint debugging
F2 function found under the rear break and we are interested in running, hit the breakpoint interface:
app-hitbkpt-300x170.jpg
This time you can debug function that we are interested in, and have the following precautions:
GDB mode - likely F7 F8 will always remain in the breakpoint address, this is the GDB Bug, you can cancel the breakpoint and then F7 F8 resolved;
LLDB mode --F8 can not single step through the function call, this is LLDB the Bug, can be resolved through F4 to the specified address.

 

Step 9. Check objc message call chain
If we want to see the news of the call chain App can be realized by $ detectobjc command:
app-detectobjc-300x189.jpg
This feature is not available in LLDB FAST mode. If you want to customize the output, Hook can be injected into the process of debugging functions in a dynamic library gikir_iserver_injecter.dylib:
int filter_objc_message (const char * cls, const char * sel);
cls is the class name, sel is the message name, return 0 printout, return a representation ignored;

Posted

Wow u r good tut writer .. Good job

He just translated this from Chinese to English via Google Translate and just slammed it on the forum. I did some cleaning up and improved it. -_-

Posted (edited)

Is this working on 8.4?

 

edit: connects fine, but cant decrypt the binary most likely on 64 bit devices.

Updated by _Ekin_
Posted

not sure what to do the server on the device keeps crashing as soon as I open it is it because I'm on ios 9.3.3

 

I'm having the same issues, the server crashes on 9.0, is there a solution for this?

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

    • Galaxiga - Classic 80s Arcade v10.90 [ +7 Jailed ] Energy Max
      Modded/Hacked App: Galaxiga - Classic 80s Arcade By ONESOFT GLOBAL PTE. LTD.
      Bundle ID: com.os.space.force.galaxy.alien
      iTunes Store Link: https://apps.apple.com/us/app/galaxiga-classic-80s-arcade/id1519367184?uo=4


      Hack Features:

      - Premium Pass [ Rewards Only ]

      - Energy Unlimited [ Linked Premium Pass ]

      - Plane Unlocked [ Tire 1 Tire 2 ] 

      - Drone Unlocked [ Tire 1 Tire 2 ]

      - Stone Unlocked [ Tire 1 Tire 2 ] 

      - Unlock Gem Cost 0 [ Plane Drone Stone ]

      - Easy Kill [ Only SP - No PVP ] 

      - Win PvP Select Higher Rank [ Plane Drone Stone ] Easy To Win PvP NO Bannnn


      Jailbreak required hack(s): https://iosgods.com/forum/5-game-cheats-hack-requests/
      Modded Android APK(s): https://iosgods.com/forum/68-android-section/
      For more fun, check out the Club(s): https://iosgods.com/clubs/
      • 48 replies
    • Galaxiga - Classic 80s Arcade v10.90 [ +7 Cheats ] Energy Max
      Modded/Hacked App: Galaxiga - Classic 80s Arcade By ONESOFT GLOBAL PTE. LTD.
      Bundle ID: com.os.space.force.galaxy.alien
      iTunes Store Link: https://apps.apple.com/us/app/galaxiga-classic-80s-arcade/id1519367184?uo=4


      Mod Requirements:
      - Jailbroken iPhone/iPad/iPod Touch.
      - iGameGod / Filza / iMazing or any other file managers for iOS.
      - Cydia Substrate, ElleKit, Substitute or libhooker depending on your jailbreak.
      - PreferenceLoader (from Cydia, Sileo or Zebra).


      Hack Features:
      - Premium Pass [ Rewards Only ]

      - Energy Unlimited [ Linked Premium Pass ]

      - Plane Unlocked [ Tire 1 Tire 2 ] 

      - Drone Unlocked [ Tire 1 Tire 2 ]

      - Stone Unlocked [ Tire 1 Tire 2 ] 

      - Unlock Gem Cost 0 [ Plane Drone Stone ] Maybe Effect PvP 

      - Easy Kill [ Only SP - No PVP ] 

      - Win PvP Select Higher Rank [ Plane Drone Stone ]

      Not3:- Don't Abuse The Hack Incase Banned Lower Chances Maybe


      Non-Jailbroken & No Jailbreak required hack(s): https://iosgods.com/forum/79-no-jailbreak-section/
      Modded Android APK(s): https://iosgods.com/forum/68-android-section/
      For more fun, check out the Club(s): https://iosgods.com/clubs/


      iOS Hack Download Link:

      Hidden Content

      Download Hack
      • 79 replies
    • Galaxy Attack: Alien Shooter v5.12.13 [ +30++ Cheats ] Currency Max
      Modded/Hacked App: Galaxy Attack: Alien Shooter By DINO GAME LIMITED
      Bundle ID: com.alien.shooter.galaxy.attack
      iTunes Store Link: https://apps.apple.com/us/app/galaxy-attack-alien-shooter/id1176011642?uo=4
       

      🚀 Hack Features

      - ADS NO [ Rewards Free ]

      - Gems [ Linked With Battle Pass ]

      - Gold [ Linked With Battle Pass ]

      - Chest [ Linked With Battle Pass ]

      - Monthly Card Normal

      - Monthly Card Super

      - Monthly Card Premium

      - Energy NO Need [ When 0 Play Unlimited ]

      - Evolve Stone

      - Unlimited Ship [ Select Any Ship Before The Battle ]

      - Drone Ticket

      - Terminator Point

      - Tech Point

      - Overload Ball

      - Matrix Max

      - Golden Revive Max

      - Revive Unlimited

      - Campain Revive Cost Gold [ Earn With Gold ]

      - Gems Revive  [Earn With Gems ]

      - Endless Revive Cost Gold [Earn With Gold ]

      - Talent Upgrade Cost  [Earn With Gold ]

      - Battle Pass Premium Active

      - BP Free [ Claim Unlimited ]

      - BP Premium [ Claim Unlimited ]

      - BP Free Rewards Unlimited [ Gold Gems Chest Stone + More ]

      - BP Premium Rewards Unlimited [ Gold Gems Chest Stone + More ]

      - Bullet Max

      - Life Max

      - Damage

      Warning 


      Don"t Abuse The Hack In Case Banned Any Data Lose I'M Not Responsible  

       

      🍏 For Non-Jailbroken & No Jailbreak required hacks: https://iosgods.com/forum/79-no-jailbreak-section/
      🤖 Modded Android APK(s): https://iosgods.com/forum/68-android-section/
      • 77 replies
    • Galaxy Attack: Alien Shooter v5.12.13 [ +30++ Jailed ] Currency Max
      Modded/Hacked App: Galaxy Attack: Alien Shooter By DINO GAME LIMITED
      Bundle ID: com.alien.shooter.galaxy.attack
      iTunes Store Link: https://apps.apple.com/us/app/galaxy-attack-alien-shooter/id1176011642?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

      - ADS NO [ Rewards Free ]

      - Gems [ Linked With Battle Pass ]

      - Gold [ Linked With Battle Pass ]

      - Chest [ Linked With Battle Pass ]

      - Monthly Card Normal

      - Monthly Card Super

      - Monthly Card Premium

      - Energy NO Need [ When 0 Play Unlimited ]

      - Evolve Stone

      - Unlimited Ship [ Select Any Ship Before The Battle ]

      - Drone Ticket

      - Terminator Point

      - Tech Point

      - Overload Ball

      - Matrix Max

      - Golden Revive Max

      - Revive Unlimited

      - Campain Revive Cost Gold [ Earn With Gold ]

      - Gems Revive  [Earn With Gems ]

      - Endless Revive Cost Gold [Earn With Gold ]

      - Talent Upgrade Cost  [Earn With Gold ]

      - Battle Pass Premium Active

      - BP Free [ Claim Unlimited ]

      - BP Premium [ Claim Unlimited ]

      - BP Free Rewards Unlimited [ Gold Gems Chest Stone + More ]

      - BP Premium Rewards Unlimited [ Gold Gems Chest Stone + More ]

      - Bullet Max

      - Life Max

      - Damage

      Warning 


      Don"t Abuse The Hack In Case Banned Any Data Lose I'M Not Responsible 


      🍏 Jailbreak iOS hacks: https://iosgods.com/forum/5-game-cheats-hack-requests/
      🤖 Modded Android APKs: https://iosgods.com/forum/68-android-section/

       

      📥 iOS Hack Download IPA Link


      Hidden Content

      Download via the iOSGods App
      • 61 replies
    • Galaxy Attack Alien Shooter v5.12.13 [ +3 Jailed ] Never Die
      Modded/Hacked App: Galaxy Attack: Alien Shooter By DINO GAME LIMITED
      Bundle ID: com.alien.shooter.galaxy.attack
      iTunes Store Link: https://apps.apple.com/us/app/galaxy-attack-alien-shooter/id1176011642?uo=4


      Hack Features:
      - Max Bullet
      - Max Life
      - DMG



      Jailbreak required hack(s): https://iosgods.com/forum/5-game-cheats-hack-requests/
      Modded Android APK(s): https://iosgods.com/forum/68-android-section/
      For more fun, check out the Club(s): https://iosgods.com/clubs/
      • 58 replies
    • Galaxy Attack Alien Shooter v5.12.13 [ +3 Cheats ] Never Die
      Modded/Hacked App: Galaxy Attack: Alien Shooter By ABIGAMES PTE. LTD
      Bundle ID: com.alien.shooter.galaxy.attack
      iTunes Store Link: https://apps.apple.com/us/app/galaxy-attack-alien-shooter/id1176011642?uo=4


      Mod Requirements:
      - Jailbroken iPhone/iPad/iPod Touch.
      - iGameGod / Filza / iMazing or any other file managers for iOS.
      - Cydia Substrate, Substitute or libhooker depending on your jailbreak.
      - PreferenceLoader (from Cydia, Sileo or Zebra).


      Hack Features:
      - Max Life 
      - Damage Multi [PvP Use Only Boss ] 
      - Max Bullet



      Non-Jailbroken & No Jailbreak required hack(s): https://iosgods.com/forum/79-no-jailbreak-section/
      Modded Android APK(s): https://iosgods.com/forum/68-android-section/
      For more fun, check out the Club(s): https://iosgods.com/clubs/


      iOS Hack Download Link:

      Hidden Content

      Download Hack
      • 208 replies
    • [ GrandChase TW] 永恆冒險 Cheats v1.91.2 +3
      Modded/Hacked App: 永恆冒險 By HaoPlay Limited
      Bundle ID: tw.txwy.ios.grandchase
      iTunes Store Link: https://apps.apple.com/tw/app/%E6%B0%B8%E6%81%86%E5%86%92%E9%9A%AA/id1434266148?uo=4


      Hack Features:
      - Multiply Attack
      - Multiply Defense
      - Instant Skills
      - Weak Enemies


      ViP Non-Jailbroken Hack: https://iosgods.com/topic/167594-grandchase-tw-%E6%B0%B8%E6%81%86%E5%86%92%E9%9A%AA-v1744-jailed-cheats-2/


      iOS Hack Download Link: https://iosgods.com/topic/144913-grandchase-tw-%E6%B0%B8%E6%81%86%E5%86%92%E9%9A%AA-cheats-v1812-3/
      • 150 replies
    • [Grandchase KR] 그랜드체이스 Cheats v1.92.3 +3
      Modded/Hacked App: 그랜드체이스 By KOG co., Ltd
      Bundle ID: com.kakaogames.grdchase
      iTunes Store Link: https://apps.apple.com/kr/app/%EA%B7%B8%EB%9E%9C%EB%93%9C%EC%B2%B4%EC%9D%B4%EC%8A%A4/id1312734855?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

      - Multiply Attack
      - Multiply Defense
      - Instant Skills

       

      Non-Jailbroken Hack: https://iosgods.com/topic/106254-grandchase-kr-%EA%B7%B8%EB%9E%9C%EB%93%9C%EC%B2%B4%EC%9D%B4%EC%8A%A4-v1872-weak-enemies-more/

       

      ⬇️ iOS Hack Download Link: https://iosgods.com/topic/132809-grandchase-kr-%EA%B7%B8%EB%9E%9C%EB%93%9C%EC%B2%B4%EC%9D%B4%EC%8A%A4-cheats-v1882-3/
      • 145 replies
    • Groove Journey v5.0.0 Jailed Mod +1
      Modded/Hacked App: Groove Journey By Somtochukwu Mbala
      Bundle ID: com.kaipha.groovejourney
      iTunes Store Link: https://apps.apple.com/us/app/groove-journey/id6736345547?uo=4


      Hack Features:
      - PREMIUM


      iOS Hack Download IPA Link: https://iosgods.com/topic/190862-groove-journey-v311-jailed-mod-1/
      • 107 replies
    • MARVEL Contest of Champions v51.1.1 +11++ Amazing Cheats!
      Modded/Hacked App: MARVEL Contest of Champions By Kabam
      Bundle ID: com.kabam.marvelbattle
      iTunes Link: https://itunes.apple.com/us/app/marvel-contest-of-champions/id896112560?mt=8&uo=4&at=1010lce4


      Hack Features
      - Enemy/AI Doesn't Attack
      - Special Attack/Skill Always Available
      - No Knockbacks When Hit
      - No Knockdowns When Hit
      - Enemy Doesn't Block
      - Auto Win - Whoever Attacks first, loses. Disable AI Doesn't Attack for this to work.
      - One Hit Kill / High Damage - Linked. Attack first or use with Enemy Doesn't Attack.

      Non-Jailbroken version of this hack: https://iosgods.com/topic/44075-marvel-contest-of-champions-v1311-2-cheats-for-jailed-devices/
      • 3,510 replies
    • Caveman Life v1.0.2 Cheat Menu [+5 Cheats]
      Modded/Hacked App: Caveman Life By 24 HIT Riga SIA
      Bundle ID: com.prehistoric.dude
      iTunes Store Link: https://apps.apple.com/us/app/caveman-life/id6739502478?uo=4


       

      🤩 Hack Features

      - Cheat Menu (Enable and hold setting button until cheat menu appear. Password is : 2424)
       
      • 4 replies
    • Caveman Life v1.0.2 Cheat Menu [+5 Jailed Cheats]
      Modded/Hacked App: Caveman Life By 24 HIT Riga SIA
      Bundle ID: com.prehistoric.dude
      iTunes Store Link: https://apps.apple.com/us/app/caveman-life/id6739502478?uo=4



      🤩 Hack Features

      - Cheat Menu (Enable and hold setting button until cheat menu appear. Password is : 2424)

       
      • 3 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