Hello, yes you are right, the nulled versions of any file is dangerous to your server, site, safety but only if you download it from any resource that not trusted , here in our family there is a lot of laws that consider to upload a clean files ( not shitty or contain virus ) because admins are working here to see if all files are cleaned and not patched and it is a pleasure to work here in family and be one of them , BTW you can see if the files clean by test them on this
site
and this is results of scanning zip file in this thread the
result