Fcrackzip searches each zipfile given for encrypted files and tries to guess the password. All files must be encrypted with the same password, the more files you provide, the better and it is a fast password cracker partly written in assembler and it is able to crack password protected zip files with brute force or dictionary based attacks, optionally testing with unzip its results. it can also crack cpmask’ed images.
[-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
cyborg@cyborg:~$ fcrackzip sample.zip -D -p dict.txt possible pw found: password123 ()