A forum for reverse engineering, OS internals and malware analysis 

 #25944  by SomeUnusedName
 Thu May 28, 2015 1:34 pm
That reply ment that you should use PROCESS_QUERY_LIMITED_INFORMATION as access rights only in order to open the process.

It's a protected Windows process, google for some blogposts. Search for blogposts by Alex Ionescu if you want to know more about them.