TCNs, or third country nationals. People from neither the US or locals.
From my understanding the reason why is the almighty dollar. They don’t get paid nearly as much as our troops and contractors, but still a lot more than they would make at home. There is quite a bit of info about it if you do a quick search.
Wow is that an old version of NGINX. Bad sys admin! If you are going to change your server string, have some fun. Set it to “server 1.0. Today’s special is caramel horse apple”
The poor thing is probably mining bit coins and deploying ransomware!