iOS Reverse tool article

First, install Monkeydev (not jailbreak debugging):

Non-jailbreak machines or use Xcode to debug third-party applications There are many integration steps, injection dylib, integrated reveal (UI analysis tools), Class-dump (view header file tool), Cycript (debugger), etc.

First, installation: Cycript address

1. Download the relevant SDK via Cycript website

2. Put the extracted files directly under the hard disk opt folder:

3. Configure related environment variables:

Open Terminal, edit. Bash_profile pieces

$ vim ~/.bash_profile

Add the following two lines:

Export cycript_src=/opt/cycript_0.9.594/
export path= $PATH: $cycript _src

Save the exit and enter the following command:

$ source ~/.bash_profile

4. Verification:

Enter the command mode by entering the following command at the terminal:

$ cycript

Exit this command mode and enter CONTROL + D on the keyboard

5. If the Mac has Oh-my-zsh installed:

Open the terminal and edit the. zshrc file:

$ vim ~/.ZSHRC

Add "Source ~/.bash_profile":

Save Exit, enter "$ source ~/.ZSHRC" command, close terminal on open

This way, each time you open the terminal, you don't need to enter the $ source ~/.bash_profile command.

Problems encountered during the period:

When the terminal enters the "$ cycript" command, the following error is reported:

Dyld:library not loaded:/system/library/frameworks/ruby.framework/versions/2.0/usr/lib/libruby.2.0.0.dylib

  Referenced from:/USERS/DEVZKN/DOWNLOADS/CYCRIPT_0.9.594/CYCRIPT.LIB/CYCRIPT-APL  reason:image not found

The reason is that the Ruby version on the computer is too high

To view the current Ruby version command:

$ ruby-v

Downgrading Ruby requires you to turn off SIP mode on your Mac computer:

The computer restarts and presses the COMMAND+R, enters the recovery mode to

open the terminal, enters Csrutil disable, restarts

if wants to open the SIP, repeats the two steps, the command changes to Csrutil enable

Make a copy of Ruby 2.3 on the current computer and replace it with 2.0:

$ sudo mkdir-p/system/library/frameworks/ruby.framework/versions/2.0/usr/lib/

At this point, verify Cycript again