How To Decrypt Http Custom File

HTTP Custom .hc configuration files are essentially zip archives or specially formatted text files that contain SSH/VPN connection details. When you export a configuration, the app allows you to lock it with a password or set an expiration date, which scrambles the internal payload (like server IP addresses, usernames, passwords, and SNI hosts).

Example of a decrypted JSON snippet:

When encrypted, this becomes a jumbled string of characters, sometimes prefixed with a static marker like ENV2: or CRYPT: .

Here's what you'll need:

def decrypt_aes(ciphertext, key, iv): cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=default_backend()) decryptor = cipher.decryptor() padder = padding.PKCS7(128).unpadder() return decryptor.update(ciphertext) + decryptor.finalize_with_padding(padder) how to decrypt http custom file

Sometimes, a config creator will "lock" the file—password-protecting it or encrypting its contents—to prevent others from stealing their payload, server details, or user credentials.

: Modify payloads that are no longer working with a specific ISP.

with open('passwords.txt', 'r') as pwd_file: for pwd in pwd_file: try: result = decrypt_hc(enc_data, pwd.strip()) if '' in result and '' in result: print(f"Password found: pwd") json_config = json.loads(result) print(json.dumps(json_config, indent=2)) break except: continue

encrypted_b64 = open("premium.hc").read() ciphertext = base64.b64decode(encrypted_b64) key = b"mysecretkey12345" # 16, 24, or 32 bytes iv = ciphertext[:16] actual_ct = ciphertext[16:] HTTP Custom

An .hc file is a configuration file used by the . It contains: SSH/VPN Server IP address and port Username and password Payload (HTTP header customization) SNI (Server Name Indication)

If you want to view the underlying structure or extract the hardcoded encryption salt, you can reverse engineer the HTTP Custom Android Application Package (APK). Tools Required or NP Manager (Android) Bytecode Viewer or JADX-GUI (PC) Step-by-Step Execution Step 1: Decompile the APK Obtain the HTTP Custom APK file. Open the APK in JADX-GUI or MT Manager . Decompile the Java source code ( classes.dex ). Step 2: Locate the Crypto Classes

| Issue | Solution | |-------|----------| | “Invalid file format” | File may be corrupted or from newer app version | | Garbled text after decrypt | Wrong key/IV or additional compression | | Export disabled | Use HTTP Custom Tool or older app version |

The used for HTTP request smuggling or modification. The SNI (Server Name Indication) bug host. It contains: SSH/VPN Server IP address and port

Are you trying to deploy the decryptor on ?

If you have a standard paper.yml , it is already plain text; use a to make it readable. If the file contains binary garbage, use NBTExplorer (if it's map data) or strings (if it is serialized Java data) to read the values.

If HTTP Custom disconnects or crashes immediately upon hitting connect, it has detected your packet capture tool.

Be aware that decrypted files contain private credentials.

I get JSON but missing username/password Solution: Some configs store credentials in the payload or custom_header using Base64 again. Decode each value recursively.