How To Decrypt Http - Custom File ((exclusive))

Modern .hc files are tightly protected. Instead of trying to crack the encryption algorithm statically, it is much easier to let the HTTP Custom app decrypt the file itself in a controlled environment, then capture the data from the device's memory. Step 1: Set Up a Rooted Environment

Use the global search function in jadx-gui to search for specific cryptographic terms: SecretKeySpec Cipher.getInstance AES/CBC/PKCS5Padding Step 3: Extract the Key and IV

import base64, re, json

Use the memory tool to search the app's active RAM footprint for string patterns resembling HTTP headers or JSON blocks (e.g., searching for keywords like "sshHost" , "payload" , or "proxy" ). how to decrypt http custom file

What (Windows, Linux, Android) are you using to attempt this? Share public link

Look for strings starting with standard injection parameters (e.g., CONNECT [host_port] HTTP/1.1 ). Copy the raw string and save it to a new file. Method 3: Reverse Engineering the APK

decrypt_file('encrypted_file', 'your_decryption_key') Modern

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Method 2: Reverse Engineering the APK (For Intermediate Users)

: Tie the configuration to a specific user's hardware ID so it cannot run or decrypt on unauthorized devices or emulators. What (Windows, Linux, Android) are you using to attempt this

Introduction HTTP Custom is a popular Android VPN client used to secure internet traffic and bypass regional restrictions. The app uses custom configuration files—typically with .hc extensions—to store server details, proxy settings, payload payloads, and security credentials.

An Android device or PC running an Android Emulator (e.g., LDPlayer, BlueStacks).

Look for patterns:

Do not run sniffer tools on your primary device, as HTTP Custom has built-in anti-sniffing protections that detect rooted phones and running capture apps. Install and open or your chosen emulator. Enable Root Access in the VM/Emulator settings. Install HTTP Custom inside the virtual environment. Step 2: Install the Packet Capture Tool