Difference between revisions of "File Format Identification"

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; [http://www.dfrws.org/2008/proceedings/p14-calhoun.pdf Predicting the Types of File Fragments], William Calhoun, Drue Coles, DFRWS 2008 [http://www.dfrws.org/2008/proceedings/p14-calhoun_pres.pdf [slides]]
 
; [http://www.dfrws.org/2008/proceedings/p14-calhoun.pdf Predicting the Types of File Fragments], William Calhoun, Drue Coles, DFRWS 2008 [http://www.dfrws.org/2008/proceedings/p14-calhoun_pres.pdf [slides]]
  
 
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; Karresand Martin, Shahmehri Nahid. File type identification of data fragments by their binary structure. In:
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Proceedings of the IEEE workshop on information assurance; 2006b. p. 140–7. [http://www.itoc.usma.edu/workshop/2006/Program/Presentations/IAW2006-07-3.pdf [slides]]
  
 
[[Category:Bibliography]]
 
[[Category:Bibliography]]

Revision as of 22:11, 19 October 2008

File Format Identification is the process of figuring out the format of a sequence of bytes. Operating systems typically do this by file extension or by embedded MIME information. Forensic applications need to identify file types by content.

Tools

libmagic

  • Written in C.
  • Rules in /usr/share/file/magic and compiled at runtime.
  • Powers the Unix “file” command, but you can also call the library directly from a C program.
  • http://sourceforge.net/projects/libmagic

DROID

TrID

Stellent/Oracle Outside-In

Bibliography

Current research papers on the file format identification problem. Most of these papers concern themselves with identifying file format of a few file sectors, rather than an entire file.

Predicting the Types of File Fragments, William Calhoun, Drue Coles, DFRWS 2008 [slides]
Karresand Martin, Shahmehri Nahid. File type identification of data fragments by their binary structure. In

Proceedings of the IEEE workshop on information assurance; 2006b. p. 140–7. [slides]