When analyzing iOS applications it is important to have an unrestricted environment to be able to fully analyze all the aspects related to that application and determine if it shows malicious behavior, decrypt the app to analyze strings and headers and even analyze the assembly code of the app, if time permits. When we are talking about overcoming restrictions on an iphone device, it means jailbreaking it. In this article, I will show the steps that I followed to jailbreak an old iphone 4s that I have.
Verify that there is an existing jailbreak for the iphone model and iOS version that you have.
In my case, there were several candidates but the jailbreak known as Home Depot seemed like a good option.
https://yalujailbreak.net/home-depot-jailbreak-offsets/
https://cydiainstaller.net/home-depot-jailbreak/
It is not a good idea to jailbreak your production device, because jailbreaking reduce the security posture of your device, making it easier for someone to get access to your data, therefore ideally you should this device for testing only. You should also create an apple account to be used only for this device, not your production account.
Download the Home Depot IPA file, version R3 worked for me
http://wall.supplies/MixtapePlayerRC3.ipa
If you are paranoid, like me, it is a good idea to download all the required software from a virtual machine, so you don't risk downloading and running potentially malicious programs.
Download and install iTunes
Create a new apple account for this process
Download Cydia Impactor
https://cydia.saurik.com/api/latest/2
Finally, run Cydia Impactor and drag and drop MixtapePlayerRC3.ipa file into it. It will ask for your apple account credentials, provide the credentials of the account you created. This will install the Home Depot jailbreak app.
In the iphone go to Settings > General > Device Management > Select the user used to sign the application and Trust It.
Open the Home Depot app, select Prepare for Jailbreak > Accept > Dismiss > Proceed with Jailbreak > Begin Installation.
Once it is completed Cydia is installed. Open Cydia and delete the repo repo666 by sliding it to the left as it causes an error. Update all the packages.
Install BigBoss Recommended Tools, as it has several command line useful tools, such as git, curl, etc.
Video where I found most of the instructions (in Spanish)
https://www.youtube.com/watch?v=qZeiW3Cyx1Y
Install OpenSSH in Cydia
This will allow you to access your device through SSH, the default password is alpine, you have access it and change it to prevent unauthorized use. Use the command passwd to change root and mobile accounts passwords.
That's it, enjoy it!
