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    Spammers seem to be on something of a Twitter rampage of late. They have sent out a wide variety of spammed messages recently that all appear to be from Twitter:

    Click Click

    The first mail sample shows a phishing attack mounted against users. The second contains links to a malicious file that is already detected as TROJ_FAKETWT.A.

    Even pharmaceutical spammed messages are exploiting Twitter:


    All of these attacks are dealt with by Trend Micro products via the Smart Protection Network™. The spammed messages and the phishing pages are already blocked. The malicious file is already detected as well.

    For users without Trend Micro products, the usual warning about links in email messages applies—clicking links in emails is a very bad idea. Twitter does not send links to a secure module. Similarly, legitimate Twitter emails changing the email address of user accounts include the new email address in the message body and do not describe nor promote any new service, as many of these phishing emails do.

    Of course, Twitter itself, beyond being a social-engineering bait, has something of a spam and phishing problem. On their official blog, they have announced that later this year, all links in Tweets will pass through Twitter’s own internal link shortener, which is located at This particular service turns out shortened links with a fixed length of 20 characters.

    What’s more important, however, is how these links will be presented. On text messages, the shortened version will be shown. On the Web or on applications, however, either the full URL, the page title, or a shortened version that does not hide the domain might be shown. As Twitter says in its blog:

    Ultimately, we want to display links in a way that removes the obscurity of shortened links and lets you know where a link will take you.

    It will be interesting to see how both Twitter and the many available applications make use of this information. Some clients have similar features already but as this tends to be reliant on the shortening service used it is not always available. When this feature is finally implemented, it can only be a good thing for users.

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