How to Crack Password-protected
Zip Files Using Linux: In case you or your friend has forgotten the
password of your password-protected .zip file that may contain important
documents, music, or non-porn movies, there is really no need to worry
as there are plenty of password crackers available out there. If you are
using Linux, I highly recommend you download and use FCrackZip.
FCrackZip
is a simple, fast, free, and easy-to-use zip cracker that is similar to
fzc and zipcrack. Partially written in assembler, it uses brute force
or dictionary based attacks to find the password. Although you will need
the Linux terminal to use FCrackZip, a simple command is actually required to crack the zip password.
If
you are using any popular or major Linux distribution, FCrackZip should
be available on the software repository, and you could download it
using the package manager. You may also download the latest version from
HERE.
Since I'm using Ubuntu, I quickly installed FCrackZip from the command line using this command:
$ sudo apt-get install fcrackzip
After installing FCrackZip, you can either use brute force or dictionary mode to crack the password.
Here is a sample FCrackZip command one-liner using brute force:
$ fcrackzip -v -b -p aaaaaa -u your_zip_file.zip
From
the screenshot above, you will see that I've successfully cracked a
password protected zip file using the brute force method. From my
experience, it took around 30 minutes to find password, but it is worth
the wait. Source: http://www.junauza.com