In our 2013 predictions, we noted how malware would only gradually evolve without much in the way of significant change. This can be seen in the use of some (otherwise legitimate) hacking tools in APT attacks.
How is this a problem? Hacking tools are grayware which are not always detected by anti-malware products or at least ethico-legal issues are keeping them from doing so. Unfortunately, this means less visibility in APT forensic investigations. In addition, it also saves attackers the trouble of writing their own tools. Some of the common hacking tools we see are:
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