Security experts from enSilo firm released a free patch for Windows systems vulnerable to the NSA-linked ESTEEMAUDIT Exploit. The WannaCry emergency could not be ended because the NSA dump leaked by the Shadow Brokers team included many other dangerous exploits. The EsteemAudit exploit is a hacking tool that targets RDP service (port 3389) on machines running no longer supported Microsoft Windows Server 2003 / Windows XP. An attacker with technical knowledge can exploit them to compromise millions of Windows systems across the world.”]
Source: http://securityaffairs.co/wordpress/59450/hacking/nsa-esteemaudit-exploit-patch.html