This rule targets communication messages containing links to the limewire.com domain, specifically when there is only one such link present in the message. The rule defines certain criteria to identify potentially malicious links stemming from limewire.com, commonly associated with file-sharing activities that could lead to malware or ransomware threats. Key checks involve ensuring that the total number of links in the message is fewer than 10, the specific limewire link is the only one of its kind, and it has to be prefixed correctly indicating it is a downloadable file. Furthermore, messages from high-trust sender domains must fail DMARC authentication to trigger this detection, suggesting a focus on potential compromise of normally trustworthy accounts. The rule thus combines elements of URL and content analysis to evaluate the security posture of incoming messages, especially focusing on the potential exploitation via file sharing.