hi
There is a new version of the setoolkit 6.5
The version in BackBox 6.4.1

You can not get the new version of updates
I hope that this is done
The new version features
The Social-Engineer Toolkit (SET) v6.5 “Mr Robot” released!
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version 6.5
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* added brand new attack vector HTA attack and incorporated powershell injection into it
* fixed a prompt that would cause double IP questions in certain attack vectors
* slimmed down powershell injection http/https attack vectors in order to use in payload delivery
* added exploit to browser attack Adobe Flash Player ByteArray Use After Free (2015-07-06)
* added exploit to browser attack Adobe Flash Player Nellymoser Audio Decoding Buffer Overflow (2015-06-23)
* added exploit to browser attack Adobe Flash Player Drawing Fill Shader Memory Corruption (2015-05-12)
https://www.trustedsec.com/july-2015/the-social-engineer-toolkit-set-v6-5-mr-robot-released/