All the programs that we are going to see below are programs that we can find available on the network, without barriers or impediments. What’s more, some of them are even open source, allowing us to review the code and reuse it however we want.
Of all the ones we are going to see, the most controversial, since they allow us to go beyond compressed files, are Hashcat and John the Ripper. These programs are widely known within the world of computer security and hacking, and are very frequently associated with computer attacks. However, again, the possession and use of these programs is also completely legal, we do not have to worry… as long as we use them legally.
For example, this is something similar to what happens with the clients that we normally use to download files in the format torrent. Many think that these programs are illegal Well persecuted that these contents have been for many years. However, it is important to know that these clients that we are talking about are completely legal. Then in one part there is the way of use that each user makes of these Applications. For example, if you download torrent files belonging to copyrighted movie or series content, you are making illegal use of the application. But the program as such remains completely legal to use.
Once we know all this and that we can use these applications without any problem, let’s see what they must offer us to be fully functional and useful.
What should we look for in a program to crack ZIP and RAR
Although there are plenty of programs to guess the password for archive files, not all of them are equally accurate or good. This is somewhat similar to what happens with most software solutions belonging to other sectors. We find fully functional and very useful applications, while others do not solve the problem we have, they can even be malicious. Therefore, in this sense, when it comes to discovering passwords through software solutions, first of all, we must be careful with what we download to our equipment.
Each one makes use of a series of techniques or tricks, more or less efficient, to achieve the objective. Therefore, when we look for software of this type we must take into account:
- Key Check Speed. The higher it is (especially if it’s using the GPU) the faster it will take to guess long passwords. This feature is very important if we plan to use brute force techniques, since testing each and every combination of letters, numbers and symbols can take years.
- Compatibility. We must know the formats that it can analyze, whether they are ZIP, RAR or others. In addition, the program we choose must be compatible with the latest versions of these formats, otherwise there will be many that we will not be able to analyze, such as the new RAR5.
- Easy to use. The simpler the program is to use, it is usually less effective, although we will save ourselves headaches. Of course, the simpler the program, the less options we will have (at least, in sight). And if we are one of those who prefer to fully customize the analysis parameters, this will be a handicap.
- Price. Is the content of the file worth more than the price of the program? It is true that we can always resort to free tools to try to break this encryption, but these are usually either ineffective or complicated to use.
Of course, we must also take into account the type of attack, or technique, that you use to crack passwords, since not all of them are equally secure.
Types of attacks to break passwords
There are three different types of attacks to be able to break, and find out, the passwords of the compressed files. Depending on the compressed file as such or the way in which it has been protected, we can use one method or another. In the same way, it must be taken into account that there are developers who prefer to use a system for their software than decryption, while others prefer to use different alternatives. Regardless of the method used by the program that we have chosen, below, we will talk about the main differences that you will find between these three methods.
- Brute force: This type of attack is based on trying all possible combinations of numbers, letters and characters until finding the true password. It is the least effective in terms of performance, and if the password is long it can take a very long time. If a long password has been used that will mix letters, numbers and symbols, it will be impossible to guess it by this method, as long as we don’t have many years ahead of us to leave the application open trying the billions of millions of possible combinations.
- dictionary attack: allows us to load a dictionary of keys, or a list, to be able to try with the most used passwords until finding the true one. This attack is useful when a common password has been used to protect the file, a practice that, as we have said many times, we must avoid precisely because of this. If we are one of the users who do not worry about using difficult-to-remember passwords that combine letters and numbers, it is most likely that using a password dictionary, we will quickly find the password.
- Brute force attack with mask: It is more precise than the normal brute force attack since it allows us to specify ranges and patterns to test much more precise techniques. It is similar to the brute force we have seen before, but useful when we know the length (even if it is approximate) or part of the key. It is worth noting that for many this is the most effective system to find out passwords that we can come across at the moment.
Depending on the type of file, our computer, the program and the possible password it may have, we will have to use one program or another. Next, we are going to see what are the best programs that we can use to break the passwords of compressed files.
Programs to crack RAR passwords
If, on the contrary, what we have are files in RAR format (compressed with WinRAR) encrypted by password, the following programs will allow us to find out what their password is so that we can access their content without headaches.
PassFab for RAR
If we are looking for a fast and effective program to recover RAR file passwords, PassFab for RAR It is one of the best alternatives that we can find. This software stands out, above all, for having GPU acceleration, which greatly speeds up the key test and considerably reduces the time to guess the password. This software allows you to find out the password of a compressed file using brute force attacks, brute force with a mask (if we remember the length or part of the key) and dictionary attacks.
In just three steps we can easily find out the password.
From your website we can
The best
Here we find one of the most popular programs with these characteristics to find out the passwords of compressed files, which is why it is also one of the most used. It has its own GPU acceleration function, which allows it to perform better than other competitors.
Worst
Although we have a trial version to take a first-hand look at this password application, to use it over time we will have to pay for the commercial version.
Free Rar Password Recovery
This is one of the most advanced software to crack lost or forgotten passwords for RAR archive files. It has a very simple and intuitive interface that makes this software easy to use for any user. Of course, despite its name, this program is not free. And, in addition, its license is not exactly cheap. A somewhat ugly attempt at deception but that does not make it a bad alternative.
Can Download Free Rar Password Recovery from .
In favor
In this case, its developers propose a solution to find out these passwords that we are discussing, especially suitable for more advanced users. all this is achieved thanks to the additional functions that we find by default to break the protection of these compressed files.
Against
In principle we will tell you that it is a program today for which we will have to pay to get all the performance and it is also not suitable for users with little experience in this type of use.
RAR Password Recovery Professional
Without a doubt, one of the best qualities of this software is its speed. This program can carry out brute force, mask and even dictionary attacks. In addition, it has support for CPUs with multiple cores, and even with GPUs, so that the speed of key decryption increases. It has a very careful and easy-to-understand design, as well as a progress bar that indicates the progress of the recovery.
By contrast, the free version is limited to just 3 characters, and the paid version costs $19.95.
Can Download RAR Password Recovery Professional .
Pros
If there is something that characterizes this password software solution for compressed files over the rest of its competitors, it is the processing speed that it manages to achieve so that we obtain the expected results. It is also worth noting that the application offers us support for working with multi-core CPUs.
cons
The free version of this particular application is too limited to be useful to us, so to actually use it we are going to have to pay for its license.
Daossoft RAR Password Rescuer
Yet another alternative to try to find out the password of any compressed file in RAR format. This program has an elegant interface, very clear, organized and easy to use, which will allow us to recover the password of any type of compressed file with WinRAR. This software can make use of literal brute force, brute force with character masks and, of course, based on defined dictionaries that we can load for you.
Unfortunately, it’s not one of the quickest solutions, and it usually takes a long time to figure out the key. Especially if it is long and complex.
Can download Daossoft RAR Password Rescuer from .
I like
Among the most striking sections of this software solution that we find ourselves with now, it is worth noting the elegant user interface that it offers us. With all this, it tries to make things easier for us and work with these passwords.
I like less
Despite the advantages that it offers us, perhaps the most unfavorable point that it has is that it is a program that is somewhat slower than its direct competition.
KRyLack Archive Password Recovery
This program allows us to recover forgotten passwords from both ZIP compressed files and RAR files. KRyLack Archive Password Recovery…
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