{"success":true,"data":{"id":"double-extension-masquerade","label":"Masquerading filename (e.g. invoice.pdf.exe)","description":"Attachment filename has a document-looking extension (.pdf, .docx, .jpg, etc.) followed by an executable extension (.exe, .scr, .js, .jar, etc.). Example: \"invoice.pdf.exe\". Windows hides the final extension by default, so users see \"invoice.pdf\" and trust it. Real documents never have an executable extension appended — this shape is exclusively malware delivery.","tier":"danger","category":"other","isThin":false}}