This rule targets the detection of links within inbound traffic that exhibit a specific obfuscation technique involving URL fragments. It aims to identify links where the fragment part contains repeating hexadecimal patterns, which are often employed to conceal malicious URLs or evade standard security filters. The regex pattern used in the detection checks for fragments that are structured as `.html/?` followed by a series of hexadecimal pairs (two-character sequences representing hexadecimal numbers) repeated twelve or more times, separated by periods. This pattern is indicative of attempts to mask the actual destination of a URL, potentially linked to credential phishing or other types of evasive maneuvers. By flagging such links, the rule serves to enhance the security posture against malicious web activity targeting users.