fcrackzip version 1.0, a fast/free zip password cracker written by Marc Lehmann [email protected].


Download latest source (2008) from the website.

Or use Brew.

brew install fcrackzip


fcrackzip [OPTIONS]


    [-b|--brute-force]            use brute force algorithm
    [-D|--dictionary]             use a dictionary
    [-B|--benchmark]              execute a small benchmark
    [-c|--charset characterset]   use characters from charset
    [-h|--help]                   show this message
    [--version]                   show the version of this program
    [-V|--validate]               sanity-check the algortihm
    [-v|--verbose]                be more verbose
    [-p|--init-password string]   use string as initial password/file
    [-l|--length min-max]         check password with length min to max
    [-u|--use-unzip]              use unzip to weed out wrong passwords
    [-m|--method num]             use method number "num" (see below)
    [-2|--modulo r/m]             only calculcate 1/m of the password
    file...                    the zipfiles to crack

methods compiled in (* = default):

 0: cpmask
 1: zip1
*2: zip2, USE_MULT_TAB


$ fcrackzip -D -p rockyou.txt -v -u archive.zip
found file 'secretfile.txt', (size cp/uc     35/    23, flags 1, chk f8e7)

PASSWORD FOUND!!!!: pw == thisisapassword

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