Marcin Walas enhanced the rapid7/metasploit-framework by developing advanced SSL/TLS scanning features focused on vulnerability detection and reporting. He refactored the SSL version and cipher scanning logic to leverage Rex::SSLScan, enabling more comprehensive analysis of weak ciphers and certificate details while streamlining the scanning process in Ruby. In a subsequent update, Marcin implemented Server Name Indication (SNI) support, allowing the scanner to accurately assess virtual hosts on multi-domain servers and improving coverage for TLS-based targets. His work demonstrated depth in network security and vulnerability scanning, resulting in more robust and accurate security assessments within the Metasploit Framework.