After examining a header and footer file, a security analyst begins reconstructing files by scanning the raw data bytes of a hard disk and rebuilding them. Which of the following techniques is the analyst using?
B is correct
Three common types of file carving methods are as follows:
Header- and footer-based carving, which focuses on headers like those found in JPEG files. For example, JPEGs can be found by looking for \xFF\xD8 in the header and \xFF\xD9 in the footer.
Content-based carving techniques look for information about the content of a file such as character counts and text recognition.
File structure-based carving techniques that use information about the structure of files.
File Carving
File carving is a technique used to fully recover partially recovered files or those discovered to be damaged. Because carving techniques don’t depend on the file system in use, file carving is a common method for data recovery when all else fails. The basic concept of carving is that specified file types are searched for and extracted from raw binary data by looking at file structure and content without any matching file system metadata.
B.
File carving is the process of reconstructing files by scanning the raw bytes of the disk and reassembling them.
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