{"success":true,"data":{"ext":"sisx","name":"SISX","description":"Symbian Installation System eXtension (SISX) is an application package format created for the Symbian operating system and maintained through the Symbian software distribution ecosystem. It is used to install mobile applications, updates, and optional components on Symbian devices. The format is now legacy, and although generally safe as a package container, files from untrusted sources should be checked before installation.","mime":["application/vnd.symbian.install"],"risk_level":"Safe","signatures":[{"hex":"19 04 00 10","offset":8,"sources":[{"name":"Apache Tika tika-mimetypes.xml","url":"https://raw.githubusercontent.com/apache/tika/main/tika-core/src/main/resources/org/apache/tika/mime/tika-mimetypes.xml"}]}],"related":["sis"],"usage":{"python":"def is_sisx(file_path: str) -> bool:\n    \"\"\"Check if file is a valid SISX by magic bytes at offset 8.\"\"\"\n    signature = bytes([0x19, 0x04, 0x00, 0x10])\n    with open(file_path, \"rb\") as f:\n        f.seek(8)\n        return f.read(4) == signature","node":"function isSISX(buffer: Buffer): boolean {\n  const signature = Buffer.from([0x19, 0x04, 0x00, 0x10]);\n  if (buffer.length < 12) return false;\n  return buffer.subarray(8, 12).equals(signature);\n}","go":"func IsSISX(data []byte) bool {\n    signature := []byte{0x19, 0x04, 0x00, 0x10}\n    if len(data) < 12 {\n        return false\n    }\n    return bytes.Equal(data[8:12], signature)\n}"}}}