bishopfox/bfinjectDylib injection for iOS 11.0 - 11.1.2 with LiberiOS and Electra jailbreaks
Easy dylib injection for jailbroken 64-bit iOS 11.0 - 11.1.2. Compatible with Electra and LiberiOS jailbreaks.
bfinject loads arbitrary dylibs into running App Store apps. It has built-in support for decrypting App Store apps, and comes bundled with iSpy and Cycript.
bfinject is a wrapper that takes care of correctly codesigning your dylibs before injecting them using bfinject4realz. It's completely standalone, doesn't require jailbreakd, QiLin, or anything like that. It just works.
Note: bfinject does not work on Electra if "Tweaks" is enabled. Reboot and re-run Electra without tweaks in order to use bfinject. If you see errors with "thread_create", this is the problem.
Note: bfdecrypt is available as a standalone dylib here: https://github.com/BishopFox/bfdecrypt/
wget doesn't support SSL.ssh root@your-device-ip # (the password is 'alpine')
mkdir bfinject
cd bfinject
wget http://<your_server>/bfinject.tar
tar xvf bfinject.tar
wget doesn't support SSL.ssh root@your-device-ip # (the password is 'alpine')
export PATH=$PATH:/jb/usr/bin:/jb/bin:/jb/sbin:/jb/usr/sbin:/jb/usr/local/bin:
cd /jb
mkdir bfinject
cd bfinject
wget http://<your_server>/bfinject.tar
tar xvf bfinject.tar
bash bfinject for helpbash or it won't work. Sandbox yadda yadda.-bash-3.2# bash bfinject
Syntax: bfinject [-p PID | -P appname] [-l /path/to/yourdylib | -L feature]
For example:
bfinject -P Reddit.app -l /path/to/evil.dylib # Injects evil.dylib into the Reddit app
or
bfinject -p 1234 -L cycript # Inject Cycript into PID
or
bfinject -p 4566 -l /path/to/evil.dylib # Injects the .dylib of your choice into PID
Instead of specifying the PID with -p, bfinject can search for the correct PID based on the app name.
Just enter "-P identifier" where "identifier" is a string unique to your app, e.g. "fing.app".
Available features:
cycript - Inject and run Cycript
decrypt - Create a decrypted copy of the target app
test - Inject a simple .dylib to make an entry in the console log
ispy - Inject iSpy. Browse to http://<DEVICE_IP>:31337/
Before doing anything more complex, test that it works. bfinject has built-in self tests. Here's an example using the Reddit app as the target:
Cs-iPhone:~ root# bash bfinject -P Reddit -L test
[+] Electra detected.
[+] Injecting into '/var/containers/Bundle/Application/55C94FAA-A282-4FDC-967D-6A012D01087E/Reddit.app/Reddit'
[+] Getting Team ID from target application...
[+] Thinning dylib into non-fat arm64 image
[+] Signing injectable .dylib with Team ID 2TDUX39LX8 and platform entitlements...
[bfinject4realz] Calling task_for_pid() for PID 486.
[bfinject4realz] Calling thread_create() on PID 486
[bfinject4realz] Looking for ROP gadget... found at 0x1019a2ba0
[bfinject4realz] Fake stack frame at 0x12ac5c000
[bfinject4realz] Calling _pthread_set_self() at 0x182bfb814...
[bfinject4realz] Returned from '_pthread_set_self'
[bfinject4realz] Calling dlopen() at 0x1829bb460...
[bfinject4realz] Returned from 'dlopen'
[bfinject4realz] Success! Library was loaded at 0x1c016e1c0
[+] So long and thanks for all the fish.
On the device screen you should see this:
If not, something is broken ;)
Here's an example decrypting the Reddit app on an Electra-jailbroken iPhone:
Cs-iPhone:~ root# bash bfinject -P Reddit -L decrypt
[+] Electra detected.
[+] Injecting into '/var/containers/Bundle/Application/BCEBDD64-6738-45CE-9B3C-C6F933EA0793/Reddit.app/Reddit'
[+] Getting Team ID from target application...
[+] Thinning dylib into non-fat arm64 image
[+] Signing injectable .dylib with Team ID 2TDUX39LX8 and platform entitlements...
[bfinject4realz] Calling task_for_pid() for PID 3218.
[bfinject4realz] Calling thread_create() on PID 3218
[bfinject4realz] Looking for ROP gadget... found at 0x1016a5110
[bfinject4realz] Fake stack frame at 0x10a06c000
[bfinject4realz] Calling _pthread_set_self() at 0x181303814...
[bfinject4realz] Returned from '_pthread_set_self'
[bfinject4realz] Calling dlopen() at 0x1810c3460...
[bfinject4realz] Returned from 'dlopen'
[bfinject4realz] Success! Library was loaded at 0x1c03e1100
[+] So long and thanks for all the fish.
You'll see this screen on your device:
Once it's complete, you'll be presented with a UI alert to ask if you want to spawn a service from which you can download your decrypted IPA:
If you tap Yes, a service will be spawned on port 31336 of your device. Connect to it and you'll be sent a raw copy of the IPA that can be downloaded with netcat like so:
carl@calisto-3 /tmp $ nc 192.168.1.33 31336 > decrypted.ipa
carl@calisto-3 /tmp $ ls -l decrypted.ipa
-rw-r--r-- 1 carl wheel 14649063 Jan 25 16:57 decrypted.ipa
carl@calisto-3 /tmp $ file decrypted.ipa
decrypted.ipa: iOS App Zip archive data, at least v2.0 to extract
Alternatively, check the console log for the device, it will tell you where the decrypted IPA is stored. For example:
[dumpdecrypted] Wrote /var/mobile/Containers/Data/Application/6E6A5887-8B58-4FC5-A2F3-7870EDB5E8D1/Documents/decrypted-app.ipa
You can also search the filesystem for the IPA like so:
find /var/mobile/Containers/Data/Application/ -name decrypted-app.ipa
Getting the .ipa off the device can be done with netcat. On your laptop, set up a listener service:
ncat -l 0.0.0.0 12345 > decrypted.ipa
And on the jailbroken device:
cat /path/to/decrypted.ipa > /dev/tcp/<IP_OF_YOUR_COMPUTER>/12345