Hello friends,
Todays, We will discuss about how we can crack a zip files using fcrackzip tool in Kali linux System. Here, I am Using Kali linux but you can use any other os and fcrackzip (Pre-installed In Kali linux).
If you are on a Linux machine you can install it using apt-get, like so:COMMAND: sudo apt-get install fcrackzip
Lets Start:
Now if you have some protected Zip files laying around then that's great, but if you don't you can perform a quick command to make one. Here is the syntax and quick example:
COMMAND: zip -e -r <ArchiveName> <path of target file>
EXAMPLE: zip -e -r tryzip 'root/Desktop/seceret.txt'
You will get a prompt after you hit enter which will ask you to type in the password, and then again to confirm it. You should then have a password protected Zip file to use for further testing.
So, Practise Purpose, I am creating an txt file using command:
Now, For Cracking Type:
Todays, We will discuss about how we can crack a zip files using fcrackzip tool in Kali linux System. Here, I am Using Kali linux but you can use any other os and fcrackzip (Pre-installed In Kali linux).
If you are on a Linux machine you can install it using apt-get, like so:COMMAND: sudo apt-get install fcrackzip
written by Marc Lehmann <pcg@goof.com> You can find more info on http://www.goof.com/pcg/marc/ First, as with any tool, we start by quickly reviewing the documentation and then the help menu. Here, it is quick shot of the main features as outlined in the help menu: COMMAND: fcrackzip --help USAGE: fcrackzip [-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
Lets Start:
Now if you have some protected Zip files laying around then that's great, but if you don't you can perform a quick command to make one. Here is the syntax and quick example:
COMMAND: zip -e -r <ArchiveName> <path of target file>
EXAMPLE: zip -e -r tryzip 'root/Desktop/seceret.txt'
You will get a prompt after you hit enter which will ask you to type in the password, and then again to confirm it. You should then have a password protected Zip file to use for further testing.
So, Practise Purpose, I am creating an txt file using command:
:~# cd Desktop
:~# nano seceret.txt
Here, i Type A line:
"this is a sceret"
then Type Ctrl+X and y. Then Enter
Now, Txt File is ready For encryption.
:~# zip -e tryzip secert.txt
Here, My Password is 1234
Now, For Cracking Type:
[-c|--charset characterset] use characters from charset
[-l|--length min-max] check password with length min to max
[-u|--use-unzip] use unzip to weed out wrong passwords
I will note since it may not be clear at first that the '-c' charset option has a few options which will aid you if you are going to perform a straight bruteforce attack on the password:
a => lower aplha charset [a-z]
A => UPPER aplha charset [A-Z]
1 => numerical charset [0-9]
! => Special charset [!:$%&/()=?[]+*~#]
: => Used to mark additional characters to add into the charset
:~# fcrackzip -u -c 1 -l 4-6 'tryzip.zip'
PASSWORD FOUND!!!!: pw== 1234
Note: This Is only for Educational and Practice Purpose Only
