Automated file extraction in a cloud environment for forensic analysis
Abstract: The possibility to use the snapshot functionality of OpenStack as a method of securing evidence has been examined in this paper. In addition, the possibility of extracting evidence automatically using an existing operation tool has been investigated. The usability of snapshots in a forensic investigation was examined by conducting a series of tests on both snapshots and physical disk images. The results of the tests were then compared to evaluate the usefulness of the snapshot. Automatic extraction of evidence was investigated by implementing a solution using Ansible and evaluating the algorithm based on the existing standard ISO 27037. It was concluded that the snapshots created by OpenStack behaves similar enough to disks to be useful in a forensic investigation. The algorithm proposed to extract evidence automatically seems to not breach the standard.
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