What is "EsteemAudit"?

"Dubbed EsteemAudit"
https://www.securityweek.com/researchers-release-patch-nsa-linked-esteemaudit-exploit

"FortiGuard team takes a look at Esteemaudit, which is an exploit that was included in the set of cybertools leaked by the hacker group known as "Shadow Brokers.""
https://www.fortinet.com/blog/threat-research/deep-analysis-of-esteemaudit

"As you may know, we at 0patch wrote a micropatch for Equation Group's ESTEEMAUDIT exploit last month."
https://blog.0patch.com/2017/06/a-quick-analysis-of-microsofts.html?m=1

"ESTEEMAUDIT is an RDP exploit and backdoor for Windows Server 2003"
https://security.stackexchange.com/questions/133960/what-does-the-nsas-recently-leaked-the-equation-group-files-do