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fcrackzip

crack password-protected ZIP archives

TLDR

Brute-force alphanumeric password (4-8 chars)
$ fcrackzip [-b|--brute-force] [-l|--length] 4-8 [-c|--charset] aA1 [archive]
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Brute-force with custom charset
$ fcrackzip [-v|--verbose] [-b|--brute-force] [-l|--length] 3 [-c|--charset] a:$% [archive]
copy
Brute-force with special characters
$ fcrackzip [-b|--brute-force] [-l|--length] 4 [-c|--charset] a! [archive]
copy
Brute-force starting from specific password
$ fcrackzip [-b|--brute-force] [-l|--length] 5 [-c|--charset] 1 [-p|--init-password] 12345 [archive]
copy
Crack using wordlist
$ fcrackzip [-u|--use-unzip] [-D|--dictionary] [-p|--init-password] [wordlist] [archive]
copy
Benchmark cracking performance
$ fcrackzip [-B|--benchmark]
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SYNOPSIS

fcrackzip [options] archive

DESCRIPTION

fcrackzip cracks password-protected ZIP archives using brute-force or dictionary attacks. It can test passwords against the archive's encryption.Security research and recovery tool for forgotten passwords.

PARAMETERS

-b, --brute-force

Use brute-force mode
-D, --dictionary
Use dictionary mode
-l, --length min-max
Password length range
-c, --charset set
Character set (a=lowercase, A=uppercase, 1=digits, !=special)
-p, --init-password pass
Starting password or wordlist
-u, --use-unzip
Use unzip to verify
-v, --verbose
Verbose output
-B, --benchmark
Performance benchmark

INSTALL

sudo apt install fcrackzip
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sudo pacman -S fcrackzip
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brew install fcrackzip
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nix profile install nixpkgs#fcrackzip
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CAVEATS

Use only on archives you own or have permission to access. Brute-force is slow for long passwords. Dictionary attacks are faster for common passwords.

SEE ALSO

zip(1), unzip(1), john(1)

RESOURCES

Braincup
Open source brain training for math, memory and focus
Braincup mini-games
41 mini-games · Apache-2.0
No ads · No tracking
Play in browser
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276 stars
From the maker of Linux Command Library
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Braincup
Open source brain training for math, memory and focus. 41 mini-games, from mental arithmetic to Sudoku, N-Back and Solo Chess.
Apache-2.0 licensed · No ads · No tracking · No account
From the maker of Linux Command Library
Download Braincup on the App StoreGet Braincup on Google PlayGet Braincup on F-Droid