{"success":true,"data":{"ext":"b64","name":"UUencoded BASE64 file","description":"A UUencoded BASE64 file is a plain-text interchange format that represents binary data as Base64 text, derived from Unix uuencode conventions and maintained through common mail and archive tools. It is used to embed attachments in messages, package small binaries in scripts or configuration files, and transfer data through systems that accept only text. Because it is an encoding rather than an executable format, it is generally safe, though decoded content should still be treated cautiously; the format is largely legacy in modern workflows.","mime":[],"risk_level":"Safe","signatures":[{"hex":"62 65 67 69 6E 2D 62 61 73 65 36 34","offset":0,"sources":[{"name":"Gary Kessler","url":"https://www.garykessler.net/library/file_sigs_GCK_latest.html"}]}],"related":[],"usage":{"python":"def is_b64(file_path: str) -> bool:\n    \"\"\"Check if file is a valid B64 by magic bytes.\"\"\"\n    signature = bytes([0x62, 0x65, 0x67, 0x69, 0x6E, 0x2D, 0x62, 0x61, 0x73, 0x65, 0x36, 0x34])\n    with open(file_path, \"rb\") as f:\n        return f.read(12) == signature","node":"function isB64(buffer: Buffer): boolean {\n  const signature = Buffer.from([0x62, 0x65, 0x67, 0x69, 0x6E, 0x2D, 0x62, 0x61, 0x73, 0x65, 0x36, 0x34]);\n  return buffer.subarray(0, 12).equals(signature);\n}","go":"func IsB64(data []byte) bool {\n    signature := []byte{0x62, 0x65, 0x67, 0x69, 0x6E, 0x2D, 0x62, 0x61, 0x73, 0x65, 0x36, 0x34}\n    if len(data) < 12 {\n        return false\n    }\n    return bytes.Equal(data[:12], signature)\n}"}}}