This rule is designed to detect various patterns and formats often associated with unauthorized giveaways, spam, and promotions that mimic legitimate brands. It employs multiple checks to identify suspicious emails based on their content and sender attributes. The detection criteria include looking for specific patterns in the HTML body, such as background URLs, questionable domain links, and irregular subject lines that may include excessive emojis, random characters, or specific keywords indicative of spam. Key regex patterns are used to identify common tricks like using symbols in subject lines, connections to dubious domains, and ensuring the geometrically attractive formatting often used in phishing approaches. The rule also checks for conspicuous traits like double-starred subjects and excessive randomness in both sender names and email subjects which are characteristic of spam.