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TrollStore

TrollStore in a permasigned jailed app that can permanently install any IPA you open in it.

It works because of a CoreTrust bug that affects iOS 14.0 - 15.4.1 (15.5b4).

NOTE: TrollStore will NEVER work on anything higher than iOS 15.5 beta 4 (No not on iOS 15.5, not on iOS 15.6 and certainly not on iOS 16.x), please stop asking!

Installation Methods

N/A means: NO DEVICE / VERSION COMBINATION EXISTS

None means: No way to install TrollStore currently

Version / Device A8 A9 A10 A11 A12 A13 A14 A15
iOS 14.0 TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper N/A
iOS 14.0.1 TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper N/A
iOS 14.1 TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper N/A
iOS 14.2 TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper N/A
iOS 14.2.1 TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper N/A
iOS 14.3 TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper N/A
iOS 14.4 TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper N/A
iOS 14.4.1 TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper N/A
iOS 14.4.2 TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper N/A
iOS 14.5 TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper N/A
iOS 14.5.1 TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper N/A
iOS 14.6 TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper None N/A
iOS 14.7 TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper None N/A
iOS 14.7.1 TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper None N/A
iOS 14.8 TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper TrollHelper None N/A
iOS 14.8.1 TrollHelper TrollHelper TrollHelper TrollHelper None None None N/A
iOS 15.0 SSH Ramdisk SSH Ramdisk TrollInstaller TrollInstaller TrollInstaller TrollInstaller TrollInstaller TrollInstaller
iOS 15.0.1 SSH Ramdisk SSH Ramdisk TrollInstaller TrollInstaller TrollInstaller TrollInstaller TrollInstaller TrollInstaller
iOS 15.0.2 SSH Ramdisk SSH Ramdisk TrollInstaller TrollInstaller TrollInstaller TrollInstaller TrollInstaller TrollInstaller
iOS 15.1 SSH Ramdisk SSH Ramdisk TrollInstaller TrollInstaller TrollInstaller TrollInstaller TrollInstaller TrollInstaller
iOS 15.1.1 N/A N/A N/A N/A N/A N/A TrollInstaller TrollInstaller
iOS 15.2 SSH Ramdisk SSH Ramdisk SSH Ramdisk SSH Ramdisk None None None None
iOS 15.2.1 SSH Ramdisk SSH Ramdisk SSH Ramdisk SSH Ramdisk None None None None
iOS 15.3 SSH Ramdisk SSH Ramdisk SSH Ramdisk SSH Ramdisk None None None None
iOS 15.3.1 SSH Ramdisk SSH Ramdisk SSH Ramdisk SSH Ramdisk None None None None
iOS 15.4 SSH Ramdisk SSH Ramdisk SSH Ramdisk SSH Ramdisk None None None None
iOS 15.4.1 SSH Ramdisk SSH Ramdisk SSH Ramdisk SSH Ramdisk None None None None
iOS 15.5 Beta 1 - Beta 4 SSH Ramdisk SSH Ramdisk SSH Ramdisk SSH Ramdisk None None None None

Full 14.0 - 15.5b4 installation support will come when the Fugu15 installation method is public.

Updating TrollStore

After having installed TrollStore, you can update it to newer versions by opening the .tar file in releases in TrollStore. It will install the update and respring afterwards.

Uninstalling an app

TrollStore installed apps can only be uninstalled from TrollStore itself, tap an app or swipe it to the right in the 'Apps' tab to delete it.

Persistence Helper

The CoreTrust bug used in TrollStore is only enough to install "System" apps, this is because FrontBoard has an additional security check (it calls libmis) every time before a user app is launched. Unfortunately it is not possible to install new "System" apps that stay through an icon cache reload. Therefore when iOS reloads the icon cache, all TrollStore installed apps including TrollStore itself will revert back to "User" state and will no longer launch.

The only way to work around this is to install a persistence helper into a system app, this helper can then be used to reregister TrollStore and it's installed apps as "System" so they become launchable again, an option for this is available in TrollStore settings.

On jailbroken iOS 14 when TrollHelper is used for installation, it is located in /Applications and will persist as a "System" app through icon cache reloads, therefore TrollHelper is used as the persistence helper on iOS 14.

Features

The binaries inside an IPA can have arbitary entitlements, fakesign them with ldid and the entitlements you want (ldid -S<path/to/entitlements.plist> <path/to/binary>) and TrollStore will preverse the entitlements when resigning them with the fake root cert on installation. This gives you a lot of possibilities, some of which are explained below.

Banned entitlements

iOS 15 on A12+ has banned the following three entitlements related to running unsigned code, these are impossible to get without a PPL or PAC bypass, apps signed with them will crash on launch.

com.apple.private.cs.debugger

dynamic-codesigning

com.apple.private.skip-library-validation

Unsandboxing

Your app can run unsandboxed using one of the following entitlements:

<key>com.apple.private.security.container-required</key>
<false/>
<key>com.apple.private.security.no-container</key>
<true/>
<key>com.apple.private.security.no-sandbox</key>
<true/>

The third one is recommended if you still want a sandbox container for your application.

You might also need the platform-application entitlement in order for these to work propery:

<key>platform-application</key>
<true/>

Please note that the platform-application entitlement causes side effects such as some parts of the sandbox becoming tighter, so you may need additional private entitlements to circumvent that. (For example afterwards you need an exception entitlement for every single IOKit user client class you want to access).

Root Helpers

When your app is not sandboxed, you can spawn other binaries using posix_spawn, you can also spawn binaries as root with the following entitlement:

<key>com.apple.private.persona-mgmt</key>
<true/>

Because a root binary needs special permissions, you need to specifiy all your root binaries in the Info.plist of your application like so:

<key>TSRootBinaries</key>
<array>
    <string>roothelper1</string>
    <string>some/nested/roothelper</string>
</array>

Note: The paths in the TSRootBinaries array are relative to the location of the Info.plist, you can also include this key in other bundles such as app plugins.

Afterwards you can use the spawnRoot function in TSUtil.m to spawn the binary as root.

Things that are not possible using TrollStore:

  • Getting proper platformization / CS_PLATFORMIZED
  • Spawning a launch daemon (Would need CS_PLATFORMIZED)
  • Injecting a tweak into a system process (Would need CS_PLATFORMIZED, a userland PAC bypass and a PMAP trust level bypass)

Credits and Further Reading

@LinusHenze - Found the CoreTrust bug that allows TrollStore to work.

Early Write-Up on the CoreTrust bug with more information.

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