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Advanced Search. Sort By Back. View Results. Lo que se hace con el metodo de fuerza bruta es aplicar la funcion hash a una lista de combinaciones posibles de entradas, y en caso de que la salida coincida con a la que se le desea averiguar la entrada se tiene una de las posibles entradas. Hay que tener en cuenta que idealmente una funcion hash es inyectiva para una longitud de entrada menor o igual a la longitud de salida, es decir, por ej.
Pero como en la entrada no hay limites de logitud, la cantidad de entradas posibles de cualquier logitud para una dada salida de longitud finita, es infinita.
Estas funciones se suelen usar como firmas digitales principalmente y tambien para guardar passwords en distintos sistemas. En el MD5 se descubrieron algunas colisiones, esto quiere decir que se han encontrado mas de una entrada de longitud menor o igual a la de salida que responde a una misma salida de la funcion hash.
Chau saludos morza tu numero de posts. Friedrich Nietzsche «« Normas de HackHispano »». Stasik told me it is much easier to crack the NTLM hash if you know the character set. This way you do not need to bruteforce all possible characters combinations.
The issue is john has no easy way to limit the character set. You will have to modify the john. This is the current version of John the Ripper. It adds some new features dumbforce and knownforce and speeds up several algorithms.
I haven't figured out how to use this feature. John the Ripper is a very powerful tool however it is not very intuitive to use. I can point you to the John the Ripper wiki which has maillist excerpts cover how to use dumbforce and knownforce. For whatever reason I have been unsuccessful in getting mdcrack to work with any version of wine. This is strange as I know I had it working previously. To use mdcrack with BackTrack you should upgrade wine to the latest development version of wine and then use mdcrack The password is TestTest however mdcrack 1.
I filed a bug report with Gregory Duchemin, the author of mdcrack, and he has fixed the problem with version 1. You can also purchase the XP Special table which contain longer passwords and the special characters. There are special tables for Vista. The small table is Vista free and is free. There is a table you can purchase called Vista Special which contains hashes for passwords up to 8 characters.
The rainbow tables that ophcrack uses are NOT compatible with the rainbow tables generated by rtgen. If you know that the password meets the above specs you can purchase the table and give it a try. There is no way to do this. You cannot as the windows binary of john the ripper that you can download from the website does not support NTLM. You will have to download the source code, one of the patches that adds support for NTLM and compile it yourself. There are also one or two places where you can download a john binary that already has the patches applied.
This will crack the LM hashes. See section 3. Warning: If the user account you are going to change the password on has encrypted files you will lose access to the encrypted files until you remember the old password.
This only applies to local user accounts and not domain accounts. The current version supports Vista. List users as -l then ask for username to change -e Registry editor. Now with full write support! Only old style same length overwrites possible See readme file on how to get to the registry files, and what they are. NOTE: This program is somewhat hackish! You are on your own! This program can change passwords even if syskey is on, however if you have lost the key-floppy or passphrase you can turn it off, but please read the docs first!!!
You should at least reset the administrator password using this program, then the rest ought to be done from NT. The password for the user account test has been set to TestTest. Rarely chntpw screws up and the password is not reset properly. Your best bet is to blank the password option 1. The floppy version only contains drivers for the more popular hard drive controllers.
Since the number of drivers is limited, the floppy version will not boot your PC if you have a controller that is not supported. Also floppy drives are becoming hard to find on PCs. Just below the download links are instructions on what to do with the file you downloaded. The iso is approximately 3MB in size. This Live CD only contains the drivers necessary to find your hard drives and the chntpw command.
This is a great tool when all you need to do a change a password. The website has some really good documentation on how to use the cd. To change a local user password with the System Rescue CD, you use the chntpw command.
The pwdump7 utility only work on locally stored SAMs. It will not work on windows server , , or windows Active Directory. The website is easy to use and has a very large list of hashes for you to search. If you have a windows client with the Novell NDS client installed you will notice that the client creates a local account on the PC. Usually the local password is the same as the NDS account password.
The above trick I know works as I have used this once. The other techniques listed here I cannot say if they work or not as I retired the last Novell NetWare server a long time ago.
The attack is very simple you just have to pull your network cable at the right time. Find the PID of the Gwise. To simplify this, if you have already found one Novell password, dump the PID for gwise of that user and search for the password.
From there, you can work backwards to find the OU format, and apply it to other targets. For instance, at this particular location, the client's OU is similar to clientname. Suppose the CFO is whomever. By dumping his memory, you can search for the OU and reference your original dump, match up the location and password.
Next unix passwords are "shadowed" and we must "unshadow" them before we can do anything. Finally unix passwords are salted. The short version is a salt is randomly generated value that is used to encode the user's password, which is usually already encrypted; thus adding another layer of security. The above steps will crack the passwd file on the CD. If you want to crack a passwd file located on a hard drive:.
Say you have wireless router to which you have forgotten the password. The easiest thing to do in this case is to reset the router to factory defaults. However if you have a lot of custom settings and your backup is nonexistent, out-dated, corrupted, or the backup restored a password which you do not remember, you can try a brute force attack on the router.
The first thing you have to do is find out if the device uses a username AND password to login. Several devices only require a password to login into the device as admin, root, system, etc. The easiest way to find this out is to goto the vendor's website and download installation manual which will give you this information. As I said earlier, http-get is the correct option for my Linksys AP with the factory firmware.
When you goto the AP website a dialog box opens and prompts for a username and password. Each AP is different and as such you will have to change options as RaginRob found out. I recently started playing around with Hydra and tried to hack my router. After searching the forum and googling around a while I noticed that there are only some howto's for routers that have http-auth authentication.
That is, when you go to When I want to login to my router, I have to go to It was quite tricky to find out how to use this authentication with hydra, so I guess there are some of you that can benefit from this. I'll describe how I did it, so you can adapt the method and use it with your own router.
First of all I examined the login page of the web interface. Be sure to look at the frame source and not the frameset. You should see the form and the action, here's what I saw:. This is probably the most important data you need. You need to write down the field name "pws" in my case. The size attribute comes in very handy too because it tells us that the password's max length is 12 characters. After that I tried to get familiar with Hydra's options. I figured out that you need the following options:.
In the end I don't need a login name but hydra gets kind of pissed when you don't pass something, so I gave an empty string. I skipped that in the final version but it's ok for debugging Here we tell Hydra what to pass the passwords to. The argument consists of three parts separated by ":". The third part is the "incorrect" condition.
Hydra has to find out somehow if the current password that was send to the router is correct or not. As we don't have the password yet we can't know what the router will send if the password is correct, therefore we have to check if it is NOT, which we can find out easily. To find out what the router sends back to hydra I used Wireshark.
Open up wireshark, go to the router login page, start capturing and then login with a wrong password. After that, stop capturing and apply a "http" filter.
Below that you'll find the router answer. In my case it says something like "This page has moved to loginpserr. So I used the string loginpserr. So be sure to take an expression that somehow sounds like "incorrect" or "wrong". If you took "the" for example, and the POSITVE response would be something like "the password you entered was correct", hydra will not recognize it as correct but incorrect. If your router does not only need a password but also a username, you can easily add the according login name to the last part.
So if you need to send the field "login" or whatever it is called in your case with the value "admin" as the only username you could use. When you need to try a whole username list then you can specify the list via -L usernames. Xhydra is Hydra with a GUI.
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