Added a new technique T1041 - Exfiltration Over C2 Channel (#1593)
Added a new technique T1041 - Exfiltration Over C2 Channel (#1593)

* Added a new technique T1041 - Exfiltration Over C2 Channel

* use filepath variable throughout

Co-authored-by: Carrie Roberts <9e9095607825afde3c102e8bff2cbec60876d766@gmail.com>
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