A new forensic model and its application to the collection, extraction and long term storage of screen content off a memory dump

In this paper we show how to extract graphics content within a memory dump of a windows-based system. This includes the assurance of integrity and authenticity of evidence gathered this way using cryptographic mechanisms. We introduce a forensic data model and investigate different forensic analysis steps within a phase-oriented manner to classify potential forensic methods. Furthermore we discuss approaches for long term preservation for the forensic data acquired from the memory dumps to ensure authenticity and integrity.