Patched app can't connect to network.

[jason-murray]

I have it all running on iOS10.3 however my app seems to connect to the internet on launch to get some data and it is reporting that it cannot connect when run inside IPAPatch, any ideas?

[Naituw]

I'm not sure if it's a issue of IPAPatch or protection behavior in specific app. Would you try another app? or provide me the ipa so I can test it.

[jason-murray]

I will try to debug the network activity with Charles and post back if it is app protection etc. What kind of protection could cause this? Verification of bundle identifier or something like that?

[Naituw]

@jason-murray Yes, such as the server only response to client with specific bundle identifier. But that is just my guess... need some experiment to confirm that.

[jason-murray]

I guess it's not possible to spoof the bundle identifier? Sorry I don't know much about app security.

[Naituw]

We should use tools like Charles to inspect actual failing reason of those requests first. If you don't know how to do that, I'm happy to investigate :)

The most common way to get the bundle identifier is through -[NSBundle bundleIdentifier], and it can be spoof by method swizzling.

[jason-murray]

Thanks for your responses 👍

The app seems to use SSL certificate pinning so I can't see the content of the traffic in Charles, however the useragent is obviously not the same as the original app, I have tried to method swizzle bundleIdentifier but I'm not getting it, I don't know Obj-C.

This looks like an app specific issue though and not a wider IPAPatch issue, so feel free to close the ticket. ^^

[Naituw]

@jason-murray For swizzling the bundleIdentifier, wang9262 have a example in his repo, https://github.com/wang9262/IPAPatch-WeChat/blob/feature/Vong/IPAPatch/IPAPatchEntry.m#L18 You can try and see if it works.
I will close this issue now, If you have any further questions, please feel free to open another issue.