Category: Password Cracking

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Name-That-Hash: A tool to identify hashes

Hello aspiring Ethical hackers. In this article, you will learn about a new tool named Name That Hash. Name That Hash is a hash identifying tool that can identify over 300 types including MD5 and SHA256. The other features of this tool include displaying summaries for the hashes identified, colored output and displaying in the order of their popularity etc. This tool can be installed from the repository of Kali as shown below.

Once this tool is installed, it can be started using command nth. To test a single hash, we can use “nth” with option “-t” as shown below. Let’s first give a MD5 hash.

nth -t <hash>

name that hash

Just like hashid and hash-identifier, this tool also got it right but it is giving us some additional information like where the hash is actually used. For example, Md5 is used in Linux shadow files. What about SHA-1 hash?

It got this right too. Next, let’s give it a LM hash.

It put this in the Least likely section. Next, let’s give it a NTLM hash.

It failed to get spot on NTLM too. Just like its predecessors, it correctly detected the SHA-512 and SHA-256 hashes.

The good thing about name-that-hash is that instead of being blank, it gives us more information about actually where the hash is used. This can be useful when you grab a collection of hashes from a target network. You can easily decide which hashes to crack and which not to crack.
If you have more number of hashes, giving it one by one can be cumbersome. Luckily, you can give them all at once by saving these hashes in a text file as shown below.

and using “-f” option to specify the file.

nth -f <path to the file that has saved hashes>

The output which is not shown here is same as above.

Name-That-Hash is only designed to identify hashes unlike the other two but if you have a base64 encoded string, it can be decoded by nth using the “-b64” option.

nth -b64 -t <base64 encoded string>

It correctly decoded it as “hackercool” All the above are also encrypted hashes of the text “hackercool”. Suppose you want the result to only display the most likely result, you can get this by using the “-a” option as shown below.

nth -a -t <hash>

If you observe the above images, you can see the banner of name-that-hash occupying lot of space. Just like me if this is putting you off, you can view result without banner using the “–no-banner” option.

nth –no-banner <hash>

Once go to the image above the above image, the one where we used the “-a” option. Once, carefully observe the result. It correctly detected the hash as SHA-512. Next to it, you can see the text “HC 1700 JtR: raw-sha512”. This is HashCat (HC stands for HashCat) and John (JtR stands for John The Ripper) information being displayed by the tool because the next thing you will do after identifying the hash is to crack it using Hashcat or John. This requires what you need to put into these tools to crack it. For example, let’s take a simpler hash.

John The Ripper says its raw-md5. We need to just supply this format as shown below in JTR to crack this.

Similarly, the HC number given is “0”. Let’s supply it as shown below in HashCat.

However, if you are an experienced ethical hacker with too much details hurting your ego, you can just view the result without the information of John The Ripper using “–no-john” option.

nth –no-john -t <hash>

This is the difference.

You can do the same with HashCat information using “–no-hashcat” information.

nth –no-hashcat -t <hash>

The difference can be seen below.

That was all about this tool.

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Windows Local user hash carver exploit

Hi aspiring ethical hackers. In this article you will learn about the Windows Local user hash carver exploit. During a pen test, it sometimes becomes necessary to change Windows password.

Although we have a hashdump feature to dump the password hashes of all users in a remote Windows system, this exploit directly changes the password of the user we want in the registry. Thus it saves the trouble of cracking the password hashes altogether.

This works on a local user account. This can be pretty useful if we need credentials but can’t crack the hashes. Mind that you need to have system privileges on the remote system to use this exploit (See how to escalate privileges). Let’s see how this exploit works.

First acquire system privileges on the system. Background the session (note the meterpreter session id) and load the hashcarver exploit as shown below.

Image explaining about usage of hash carver exploit

Type command “show options” to see the options required. Session is the meterpreter session id, user is the user in the remote system whose password you want to change and “pass” is the password you want to set for the user.

My session id is 2, Kanishka is the username for which I want to change the password and I want the new password to be “hacked”.

When all the options are set, execute the exploit using command “run. The exploit runs as shown and successfully changes the password. That’s all in windows Local User Hash Carver exploit. Learn how to upgrade from Command shell to Meterpreter session

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Crack password hash es with Kali

Hello aspiring hackers. In this article, we will learn how to crack password hash es using kali. n many hacking scenarios, we encounter hashes. To those newbies who have no idea what hashes are, they are encrypted text ( literally we can’t call it text ). Normally they are used to encrypt passwords for website users, operating system users etc. Today our tutorial is about cracking hashes.

For this howto, we will use NewsP Free News Script 1.4.7 which had a credential disclosure vulnerability as shown below. Imagine we got the username and password hash as shown below. The only thing that stops me from accessing the website is password in encrypted format.

Image explaining how to crack hash es with kali linux

The first step in cracking hashes is to identify the type of hash we are cracking. Kali Linux has an inbuilt tool to identify the type of hash we are cracking. It’s hash-identifier. Open a terminal and type command hash-identifier.

Enter the hash we need to crack as shown above and hit ENTER. It will show the possible hash type as shown below. In our case, it is MD5 or a variant of it.

We can also use another tool hashid for similar purpose. It’s syntax is as shown below.

We know what the type of hash is. Now, it’s time to crack the hash. We will use a tool called ‘findmyhash’. To use this tool, we need to specify the hash type ( which we already know ) and hash after it as shown below. This tool tries to crack the hash by using various online hash crackers available.

After successfully cracking the hash, it will display us the corresponding password as shown below. In our case, the password is admin.

That’s all in how to crack password hash with Kali. Learn how to do SMB enumeration with Kali.