This one is a variant of a previous bug known as LuckyCat. It arrived on the scene in April of this year as a Trojan that meets new victims leveraging a Java exploit through corrupted Word documents. In at least one case, the Trojan kept a low profile for nearly two months before being activated. But a number of variants already have been identified, leading to speculation that we have not yet heard the last of Backdoor. Potential victims, however, just might have seen the last of the data that the bug tends to steal.