Quick Answer: What Are Pass The Hash And Pass The Ticket Attacks?

Why does pass the hash work?

In cryptanalysis and computer security, pass the hash is a hacking technique that allows an attacker to authenticate to a remote server or service by using the underlying NTLM or LanMan hash of a user’s password, instead of requiring the associated plaintext password as is normally the case..

What is a pass the ticket attack?

Pass-the-Ticket attacks are a category of post-exploitation attacks involving the theft and re-use of a Kerberos ticket to authenticate to systems in a compromised environment. … Once an attacker is on a system, they will attempt to elevate privileges to get access to tickets stored in other Active Directory sessions.

What is Hashdump?

The “hashdump” command is an in-memory version of the pwdump tool, but instead of loading a DLL into LSASS.exe, it allocates memory inside the process, injects raw assembly code, executes its via CreateRemoteThread, and then reads the captured hashes back out of memory.

How is NTLM hash calculated?

The LM hash is computed as follows:The user’s password is restricted to a maximum of fourteen characters.The user’s password is converted to UPPERCASE.The user’s password is encoded in the System OEM code page.This password is null-padded to 14 bytes.The “fixed-length” password is split into two 7-byte halves.More items…

What hash does Ntlm use?

Net-NTLMv1) The NTLM protocol uses the NTHash in a challenge/response between a server and a client. The v1 of the protocol uses both the NT and LM hash, depending on configuration and what is available.

Which is the first step for an attacker in launching a pass the hash attack?

To execute a pass the hash attack, the attacker first obtains the hashes from the targeted system using any number of hash-dumping tools. Then he or she uses a pass the hash tool to place the obtained hashes on a Local Security Authority Subsystem Service.

What is Golden Ticket attack?

The Golden Ticket Attack, discovered by security researcher Benjamin Delpy, gives an attacker total and complete access to your entire domain. It’s a Golden Ticket (just like in Willy Wonka) to ALL of your computers, files, folders, and most importantly Domain Controllers (DC).

How does NTLM hash work?

The NTLM protocol uses one or both of two hashed password values, both of which are also stored on the server (or domain controller), and which through a lack of salting are password equivalent, meaning that if you grab the hash value from the server, you can authenticate without knowing the actual password.

What is a pass the hash attack?

A Pass-the-Hash (PtH) attack is a technique whereby an attacker captures a password hash (as opposed to the password characters) and then simply passes it through for authentication and potentially lateral access to other networked systems.

What is the difference between LM and NTLM passwords hashes?

The LM hash has a limited character set of only 142 characters, while the NT hash supports almost the entire Unicode character set of 65,536 characters. 3. The NT hash calculates the hash based on the entire password the user entered. The LM hash splits the password into two 7-character chunks, padding as necessary.

What hashing means?

Hashing is the process of converting a given key into another value. A hash function is used to generate the new value according to a mathematical algorithm. The result of a hash function is known as a hash value or simply, a hash.

How do I know if NTLM is enabled?

How to Test the NTLM AuthenticationClick the Windows “Start” button on the computer that has a connection to the network.Click the button at the top of the window labeled “Map Network Drive.” A wizard window opens that contains the options and configuration settings for a mapped drive.Click the “Browse” button.