FridaCtrl

A simple utility for jailbroken iOS devices to manage the network port used by frida-server.

Features

• Allows setting a custom listening port (e.g., 12345).

Description

Frida is a powerful dynamic instrumentation toolkit widely used in mobile security research and development. By default, its server component (frida-server) on iOS listens for connections on TCP port 27042.

FridaCtrl offers a convenient graphical user interface to modify the frida-server configuration (its LaunchDaemon .plist file) and reload the service, applying the port change without requiring manual SSH sessions, text editing, and launchctl commands.

Manual Port Change (via SSH)

If you prefer to change the port manually without using this app, you can do so via SSH:

1. SSH into your device as the root user.
2. Identify Plist Path: Determine the correct path for the frida-server LaunchDaemon plist:
   • Rootless: /var/jb/Library/LaunchDaemons/re.frida.server.plist
   • Rootful (Legacy): /Library/LaunchDaemons/re.frida.server.plist Let's refer to the correct path as <PLIST_PATH>.
3. Edit Plist: Use a command-line text editor like nano:

   nano <PLIST_PATH>

4. Modify Arguments: Navigate to the <key>ProgramArguments</key> section. This contains an <array> of <string> elements.
   • To Set Custom Port (e.g., 12345):
     1. Add these two lines inside the <array> (typically after the frida-server path string):

        <string>-l</string>
        <string>0.0.0.0:12345</string>

        (Replace 12345 with your desired port. 0.0.0.0 allows connections from other devices on the network.)
   • To Revert to Default Port:
     1. Find and remove the <string>-l</string> line.
     2. Find and remove the <string>...</string> line immediately following it (the one with the custom port/address).
5. Save Changes: In nano, press Ctrl+X, then Y to confirm saving, then Enter.
6. Reload Service: Apply the changes using launchctl:

   launchctl unload <PLIST_PATH>
   # The unload command might not produce anything if the service wasn't running.
   launchctl load <PLIST_PATH>
   # This command should also not print anything on success.

   The frida-server should now be running (or restarted) with the updated configuration.

Developer

Developed by Vinay Kumar Rasala (Xplo8E) with ❤️