Synopsis
It is possible to obtain the host SID for the remote host.
Description
By emulating the call to LsaQueryInformationPolicy(), it was possible to obtain the host SID (Security Identifier).
The host SID can then be used to get the list of local users.
Solution
You can prevent anonymous lookups of the host SID by setting the 'RestrictAnonymous' registry setting to an appropriate value.
Refer to the 'See also' section for guidance.