Gmail script to move phishing emails to trash

GmailInboxScripts.js

function processInbox() {
   // process all recent threads in the Inbox (see comment to this answer)
   var threads = GmailApp.search("newer_than:1d");
   for (var i = 0; i < threads.length; i++) {
      // get all messages in a given thread
      var messages = threads[i].getMessages();
      for (var j = 0; j < messages.length; j++) {
         var message = messages[j];
         processMessage(message);
      }
   }
}

function processMessage(message) {
  var body = message.getRawContent();
  if (body.indexOf("X-Blackfin-Assessment") > -1) {
    message.moveToTrash();
  }
}