The Nmap scan results show that several ports, including ftp (21/tcp), ssh (22/tcp), telnet (23/tcp), smtp (25/tcp), and http (80/tcp), are listed as "filtered". This typically indicates that a firewall is filtering the traffic to these ports, making it impossible to determine whether they are open without further investigation.
However, the question specifically asks about SMB ports, which are not shown in the provided Nmap scan results. Therefore, based on the information given, we cannot confirm that the attacker identified open SMB ports on the server. The correct answer would require additional evidence not present in the scan results.
References := Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) course materials and official Cisco documentation provide insights into interpreting Nmap scan results and identifying port states. These resources can be found at the Cisco Learning Network Store and Cisco's official training and certifications webpage