The document summarizes an attack on a Windows computer using Nmap and Metasploit to exploit the SMB vulnerability. It describes scanning the target computer with Nessus to find open ports and services, then using the ms08_067_netapi exploit in Metasploit to gain remote code execution via SMB. Once exploited, the attacker uploads a backdoor to the system32 folder and adds a new user account. The summary demonstrates gaining initial access, privilege escalation to add a new administrator account, and confirming remote command line access using the uploaded backdoor.