Abusing RWX-S binaries for post-exploitation

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Presented at Bsides London 2023 by

PE files have interesting properties that can be manipulated to achieve a variety of goals during an offensive security exercise. In particular, manipulating the 'S' bit of a section enables memory regions to be shared among processes dynamically - serving as an effective covert channel. This session aims to introduce a homegrown tool to illustrate this concept in action.