You aren't decrypting the file itself; you are watching the app use the data. 3. Log Analysis
He focused on the string 0J4sG9pX2qL5mN7o . It looked like Base64. Standard Base64 usually ends with padding characters like = , but developers often strip them to make URLs look cleaner.
The file was "locked," a common security feature used by creators to protect their custom SNI hosts and payloads from being copied or tampered with. Seeking the Digital Key
The key to successful decryption lies in understanding HTTP Custom's version-dependent encryption keys and knowing which tools correspond to which versions. Whether you're a security researcher, developer, or power user, this guide provides the foundational knowledge needed to navigate the decryption landscape for .hc configuration files. how to decrypt http custom file link
Open the APK in JADX to locate the encryption algorithm and secret keys inside the source code.
git clone https://github.com/HCTools/hcdecryptor.git cd hcdecryptor
python -c "import base64; print(base64.b64decode(open('file.hc').read()))" You aren't decrypting the file itself; you are
Decryption attempts can fail for several reasons:
: Config creators often lock files to protect the longevity of a specific server or SNI. Decrypting and re-sharing these settings can lead to servers being blocked or "killed" more quickly. Troubleshooting : If decryption fails, it is almost always due to a key mismatch
: Search the decompiled codebase for keywords such as SecretKeySpec , Cipher.getInstance , AES , Decrypt , or specific .hc file handling routines. It looked like Base64
The first clue was the scheme: hc:// . This was the signature of the HTTP Custom app. It told Elias that the string following it wasn't a standard URL, but a payload container.
To decrypt an HTTP Custom file (commonly with a extension), you generally need a specialized decryption tool or a modified version of the app, as these files are encrypted by the creators to protect SSH account details and payloads. Methods for Decrypting .hc Files 1. Use an Automated Decryption Tool