Why is an old coin miner showing up in the config.json file inside custompatches.zip?

{

  "api": {

    "id": null,

    "worker-id": null

  },

  "http": {

    "enabled": true,

    "host": "127.0.0.1",

    "port": 50080,

    "access-token": null,

    "restricted": true

  },

  "autosave": true,

  "background": true,

  "colors": false,

  "title": true,

  "randomx": {

    "init": -1,

    "init-avx2": 0,

    "mode": "light",

    "1gb-pages": false,

    "rdmsr": true,

    "wrmsr": true,

    "cache_qos": false,

    "numa": true,

    "scratchpad_prefetch_mode": 1

  },

  "cpu": {

    "enabled": true,

    "huge-pages": false,

    "huge-pages-jit": false,

    "hw-aes": null,

    "priority": null,

    "memory-pool": true,

    "yield": true,

    "max-threads-hint": 70,

    "asm": true,

    "argon2-impl": null,

    "astrobwt-max-size": 100,

    "*": {

      "intensity": 1,

      "threads": 2,

      "affinity": -1

    },

    "astrobwt-avx2": false,

    "cn/0": false,

    "cn-lite/0": false,

    "cn-heavy": false,

    "cn/gpu": false,

    "cn/ccx": false,

    "argon2/chukwav2": false,

    "astrobwt": false,

    "panthera": false

  },

  "opencl": {

    "enabled": false,

    "cache": true,

    "loader": null,

    "platform": "AMD",

    "adl": true,

    "cn/0": false,

    "cn-lite/0": false,

    "panthera": false

  },

  "cuda": {

    "enabled": false,

    "loader": null,

    "nvml": true,

    "cn/0": false,

    "cn-lite/0": false,

    "panthera": false,

    "astrobwt": false

  },

  "donate-level": 0,

  "donate-over-proxy": 0,

  "log-file": null,

  "pools": [

    {

      "algo": null,

      "coin": null,

      "url": "gulf.moneroocean.stream:10001",

      "user": "$username$",

      "pass": "RN",

      "rig-id": null,

      "nicehash": false,

      "keepalive": true,

      "enabled": true,

      "tls": false,

      "tls-fingerprint": null,

      "daemon": false,

      "socks5": null,

      "self-select": null,

      "submit-to-origin": false

    }

  ],

  "print-time": 30,

  "health-print-time": 30,

  "dmi": true,

  "retries": 5,

  "retry-pause": 5,

  "syslog": false,

  "tls": {

    "enabled": false,

    "protocols": null,

    "cert": null,

    "cert_key": null,

    "ciphers": null,

    "ciphersuites": null,

    "dhparam": null

  },

  "user-agent": null,

  "verbose": 1,

  "watch": true,

  "rebench-algo": false,

  "bench-algo-time": 5,

  "pause-on-battery": false,

  "pause-on-active": false

}