These scams involve a lot of Emailers. These Emailers include some gibberish but mostly, they have a link that leads the users to a different website where the trojan infects their system. This is just one of a kind. Email scams also include promotional content that tells the user to either get registered or deposit some money in return for something exciting.
Read more about them here so that you can avoid being scammed by one of the most stupid ways toscam poeple.