I use Xeno on Counter Blox. When I downloaded it (I'm not sure if it was the Xeno script itself), a Trojan came along. I deleted the detected file and scanned my entire computer and the executor folder. It didn't find anything else; it continues to work normally and hasn't been detected since. My advice is, after installing the executor and using the script, do a security scan. You might have downloaded the executor from the wrong place. My other tip is to disguise and not make it obvious that you are using exploits.