The BlindElephant Web Application Fingerprinter attempts to discover the version of a (known) web application by comparing static files at known locations against precomputed hashes for versions of those files in all all available releases. The technique is fast, low-bandwidth, non-invasive, generic, and highly automatable.
Sourceforge Project Page: https://sourceforge.net/projects/blindelephant/
Discussion and Forums: http://www.qualys.com/blindelephant
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