As is well known, password protection is a popular method of protecting important WinRAR files. But how bad it is if forgot the password! Not only does it prevent others from getting data from RAR files, but it also blocks access to the data even for the file owners.
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I'll cover 3 ways of how to break RAR password without spending money, but you need to be patient and careful to get each step done, in order to successfully unlock the encrypted RAR file with these sophisticated methods.
Or, you can choose the professional tool to crack RAR password. Password Genius is absolutely what you need. Its near 100% recovery rate and multiple recovery modes make it far superior to the above methods.
Before setting up, first create a TXT file containing all the passwords in your memory. Then select the "Dictionary" attack, select the "Dictionary" option, and click "Select Dictionary" to import the TXT file.
This is a mode that does not require settings. All you have to do is choose the "Smart" attack mode. Restoring RAR file passwords takes a lot of time, and if other modes failed, you can select this mode.
Also worth the recommended RAR password cracking tool is PassFab for RAR. Based on new search algorithms, PassFab for RAR does a better job at cracking speed. If you don't want to wait all the time, then it is a better choice.
This article describes 5 ways to crack RAR password. With these methods, you can quickly get rid of the trouble of not having RAR password. I have introduced useful methods in a professional and rigorous way, and I hope to help those who really need it.
Unique feature: Statistics-based approach. We've analyzed millions of leaked passwords freely available on the net with science-backed mathematical and statistical methods and based on what has been discovered we've implemented a special kind of attack that significantly improve chances your password to be recovered. No more waste of time to test senseless 'lfKs^k%j' or 'dFkj4Ht38'! Only what real people like you can typen-in as a password.
Unique feature: Artificial Intelligence in password guessing. Contemporary Deep Neural Networks are very smart in revealing any hidden secrets, even ones that can easily sneak out from statistical analysis. We created a sophisticated Deep Neural Network and trained her on millions of leaked passwords (the same ones already utilized in Statistics-based approach). Never the passwords enumerating was so close to what Humans could enter as a password!
Unique feature: Regular Expressions. Bruteforce attack still remains to be the most comprehensive way to cover every possible guessed password. However, classic bruteforce is too broad that takes too long time. Widely adopted Regular Expressions syntax allows you to define combinations more precisely. They are even much more flexible then the Mask attack.
Storing user passwords in plain text naturally results in an instant compromise of all passwords if the password file is compromised. To reduce this danger, Windows applies a cryptographic hash function, which transforms each password into a hash, and stores this hash. This hash function is one-way in the sense that it is infeasible to infer a password back from its hash, except via the trial and error approach described below. To authenticate a user, the password presented by the user is hashed and compared with the stored hash.
Hash Suite, like all other password hash crackers, does not try to "invert" the hash to obtain the password (which might be impossible). It follows the same procedure used by authentication: it generates different candidate passwords (keys), hashes them and compares the computed hashes with the stored hashes. This approach works because users generally select passwords that are easy to remember, and as a side-effect these passwords are typically easy to crack. Another reason why this approach is so very effective is that Windows uses password hash functions that are very fast to compute, especially in an attack (for each given candidate password). More information about password cracking can be found here.
Hash Suite also supports rules that can be applied to all key-providers. Rules are common transformations to base words that many users make to form passwords (for example, the word "love" might result in a password of "Love12").
To crack hashes we first need to obtain them. Normally you obtain the hashes from a local/remote machine; however, in this tutorial we will use hashes from password cracking contest Crack Me If You Can 2010 (available from here). These are publicly available hashes of realistic yet artificial passwords (so anyone can access them without concerns), and many of the hashes are of types used on Windows systems (and thus are supported by Hash Suite). The contest lasted 48 hours, which corresponds to a reasonable effort for us to spend as well, and in the end we can compare our results with those of contest participants. First import the hashes (alt+f+i) (fig 5).
You will import 3380 LM, 30640 NTLM, 326 raw SHA1, 10582 SSHA, 4716 MD5CRYPT, 80 BCRYPT hashes (fig 6), excluding possible duplicate hashes (resulting from the same passwords seen more than once). In this tutorial we will focus on LM and NTLM hashes and superficially consider SSHA and MD5CRYPT.
LM hashes were introduced in earlier versions of Windows and support for them continued in later versions for backwards compatibility, even though they were recommended by Microsoft to be turned off. As of Windows Vista, the protocol is disabled by default, but continues to be used by some non-Microsoft CIFS implementations. These hashes were very weak: we can crack ANY valid LM hash password within hours by brute-force (additional information regarding LM hashes may be found here).
We will use the Charset key-provider, which is the default option (fig 7), and a range of password lengths from 0 to 6, which is also the default. (You can see parameters on the left panel or by pressing alt+p.) So we only need to start the attack by pressing alt+1 or clicking the Start button (we can pause/stop any attack by pressing alt+2 or clicking the Stop button).
We then increase the password length to the maximum value for LM hashes: 7 and deselect the Symbol characters (fig 8). This will use only Upper and Digit characters, and will find common passwords first. Note that Hash Suite is smart enough not to use lower-case characters (which the LM hash algorithm would have converted to upper-case anyway) even if selected.
NTLM is the successor of LM. It was introduced in Windows NT and it is still in use. First, select the NTLM hashes with alt+m+f (fig 9). Then, infer the case of characters of our cracked LM hash passwords: select the LM2NT key-provider (fig 10) and start the attack (alt+1), which should complete instantly.
We will use the Charset (fig 14) key-provider with default options, which are: password length from 0 to 6 with all printable characters. Note that our password length settings were reset when switching to the NTLM format.
The popularity of passwords based on phrases has risen lately. Hash Suite provides a phrase generator with English words. Now let's use Phrases (fig 15) of 2 words with the most used English words.
Fingerprint decompiles passwords into all possible parts or patterns ordered by use. Then you recombine them with Phrases creating common patterns many humans will choose. This is a powerful and simple attack to try apparently complicated passwords. Hash Suite provides a file with many common patterns ready to use. Just choose the file fingerprint_common_pro.txt and use Phrases of 2 patterns and one million maximum words to load (fig 17). 2ff7e9595c
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