"Putting in place measures to restrict a person who is dedicated to achive his goals, you are just asking for a rebellion" - Red16
It's 2021, I am playing video games, modding, sideloading having fun, but then suddenly somthing changed in 2022, while sidloading some apps through out the year, I've started seeing pop-ups forcing me to download the game/app from the appstore this pissed me off ofc, so I decrypted one of the apps using CrackerXI (shout out to them) then loaded it up in IDA Pro, I am not new to software reverse-engineering, so I was quickly able to figure out wtf they were doing. These apps, they were simply doing basic bundleIdentifier checks and path checks, so I pulled out the method swizzling and started cracking away lol.
While chatting with one of my friends busmanl30 on discord, he had been facing similar issues, seeing these anoying pop-ups he gived me the idea to create a tool, a tool everybody else can easily integrate into their tweaks. And thats how libSupport came to be.
libSupport is already pretty easy to use and is self-explaintory, but some need a visaul representation.
include support.h into your main file or where-ever, add this code
// Set constructor priority to 0, we wan't to make sure libSupport is the first thing initialized in our program.
LS_CTOR_(0)
{
// Add any files you wish to restrict the target app from accessing.
const char *files[] = {
"embedded.mobileprovision",
"libSupport.dylib",
"CydiaSubstrate",
"H5GG",
"iGameGod"
};
// Add any url schemes you wish to restrict the target app from opening/accessing.
const char *urls[] = {
};
SupportEntryInfo entry_info = {
.teamIdentifier = NULL, // The original team identifier of the target app (todo)
.bundleIdentifier = NULL, // The original bundleIdentifier of the terget app (null-nochange)
.hookFlags = SupportHookFlagEnableAll, // Set of options to customize libSupport hooks
.restrictedFiles = files, // The files the victim has no perm to access
.restrictedFileCount = LS_ARRAYSIZE(files), // The size of the restrictedFiles array
.restrictedURLSchemes = urls, // The url schemes the victim has no perm to access
.restrictedURLSchemeCount = LS_ARRAYSIZE(urls) // The size of restrictedURLSchemes array
};
// Lets bully him
SupportInitialize(&entry_info);
}Well my to-do list is quite hefty already, so I am relying on the community to keep this software alive and functioning.
I plan to provide an xcode framework (LSAutoInjector.framework) which will have a configurable SupportEntryInfo.json to let signers or users configure this more easily.
libSupport is licensed under the MIT License, see support.h for the full thing.