Files named "Easiest 100USD-DAY METHOD.html" are frequently used in phishing scams, utilizing malicious HTML to redirect users to fake login pages or trigger drive-by malware downloads [1, 2, 3, 5]. These attachments are designed to steal sensitive credentials and should be deleted immediately without being opened [1, 3, 4]. For more details, consult reputable security sources like Malwarebytes.