- About
the program
The Ultimate ZIP Cracker was initially created to recover
ZIP file passwords.
This is why the name has ZIP in it. Later we added support for
other popular programs, but we still use the same name.
- Password
recovery
In most cases there is no way to instantly recover or decode a
password. We only can try many different passwords for validity.
The simplest search method consists of testing of all possible
passwords. This method is called a 'Brute Force attack'.
This is a slow method. Smart optimization algorithms are used
in the Ultimate ZIP Cracker to make a Brute Force attack
as fast as possible. However, because the Brute Force attack
can take a very long time to find your lost password the Ultimate
ZIP Cracker automatically saves the already searched results
during the search. This way if a search is interrupted you can
resume where you left off.
- Password
recoveryOther search methods
Alternative search methods can be used when you know some additional
information about the password you are trying to recover:
- Password Wizard
This method combines several simple search methods. The Password
Wizard is highly recommended when you are using the Ultimate
ZIP Cracker for the very first time.
- Smart search
This method also can be called a 'Human factor' search. For
example, if your recall that your password was a pronounceable
combination of English letters without numbers then the Smart
search can find your password faster.
- Dictionary search
You can use the dictionary of more than 214,000 words to search
for the password. Different case combinations and word mutations
are available. Also you can use your own dictionary (this
can be any text file).
- Date search
More than 5,000 date formats are used to generate password
strings for a given date range.
- Customized search
In most cases you remember the way you created the password.
Say, your name + some number. Or some garbled word surrounded
by two characters - ^pefrume&. Use this information to construct
your search template. The template can be saved in a file
and loaded back later.
- Guaranteed decryption
This method guarantees that any encrypted Microsoft
Word or Excel 97/2000 document will be decrypted
within a reasonable time (about 2 weeks (or less) when running on an
average Pentium IV system).
This method is NOT based on password testing.
Each password you enter is translated into 5-bytes (40 bits)
value called 'key' that is then used to encrypt the document
body. The Ultimate ZIP Cracker will test all possible key
values to find a valid one.
The number of keys is very large: 1,099,511,627,776.
However the number of possible passwords is much bigger. For
instance, the number of character combinations in a 10-characters
alpha-digital password is 839,299,365,868,340,224.
In addition, the key testing is 3 times faster! The full search
time for such a password is about 150 years!
- Plaintext attack
This method will decrypt your whole encrypted ZIP file if
you have another unencrypted ZIP file (called plaintext file)
which contains at least one file from the encrypted archive.
Click 'Find' to locate the plaintext file automatically. When
finished decryption the program will try to decode the password,
or, if you wish, will write the decrypted file to the disk.
- Downloadable
version limitations
The Free downloadable trial version is a fully functional version
of the Ultimate ZIP Cracker. The only exception is that
the passwords longer than 5 characters in length are not shown.
To prove that the passwords are actually detected the program
allows you to view the beginning of each encrypted file. You can
then purchase the password recovered by the downloaded trial version
of Ultimate ZIP Cracker in the online store. At the end
of the search after the password is found (so
you know that you will actually receive your password!)
you will be prompted to go to the online store Shareit
and purchase your recovered password as fast as your credit card
is approved.
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