hey you guys I'm going to give you a
brief tutorial on how to crack zip files
that are password protected using
backtrack 5 version r3 so we're going to
get right into it you can see here I
have created a plain text file and I've
titled it a protected file dot txt so
what I'm going to do now is I'm going to
zip that in a zip file I'm using WinZip
mac edition so I'm going to create a new
zip file I'm going to title eight zip
pack create it then we're going to add
our a protected file here selected it
I'm going to encrypt it and I'm doing
this so you guys can see that the file
is in fact encrypted password-protected
so I'm going to use admin as the
password for the sake of simplicity it
can be anything you want the more
complex the password the longer it's
going to take to crack because we are
going to be using brute force so now I'm
going to zip it you see here it is it
has a lock next to it that indicates
that it is in fact a password protected
file so now I'm going to close that
stuff out and then I'm going to take my
new zip hack dot zip file I'm going to
drag it in to backtrack five I'm running
on virtual operating system and there
you see our zip file so now what we're
going to do is we're going to open F
crack zip I have a shortcut for it but
you can find it over here in the
backtrack menu somewhere in here have
fun finding it then we're going to open
that and that creates a terminal and we
are going to type F crack zip tack B
tack C a tack l5 tack v tach U and then
we're going to specify that zip file
location the easiest way to do it is to
drag your zip file directly into your
terminal and there you have it so now in
the terminal press enter and it is
performing a brute force attack and
there it is so as you can see a very
simple password is going to be cracked
very quickly and where we specify tack B
in that command that is for brute force
and
you can see up here the guide lowercase
B that is it is brute-force so that's it
that's how you crack a zip file and
it'll crack it for just about anything
the more complex a password the longer
it takes but that's it pretty easy