File signature

File signature list

http://www.garykessler.net/library/file_sigs.html

File signatures table

http://www.magicdb.org/

magicdb

Determine file type utilities

file(1) Standard unix utility. It use /etc/magic db.

PEiD detects most common packers, cryptors and compilers for PE files. It can currently detect more than 600 different signatures in PE files.

Freewere, close source:

http://www.peid.info

Home page.