There seems to be a common misconception that you cannot Pass-The-Hash (a NTLM hash) to create a Remote Desktop Connection to a Windows workstation or server. Pass the hash is an attack that allows an intruder to authenticate as a user without having access to the userâs password. The NTLM hash algorithm is much simpler than the LM hash. Setup Because the NTLM hash is the key to calculating the response, an adversary does not necessarily need to obtain the victimâs plain text password to authenticate, hence retrieving the hash from LSASS memory using Mimikatz is almost equivalent to stealing a â¦ apt-get update apt-get install freerdp-x11. For example, Metasploit can be used in many cases to obtain credentials from one machine which can be used to gain control of another machine. That means they can be difficult to detect. How to use NTLM hash without password cracking: Pass-the-hash attack Pass-the-hash attack allows ones to use the hash directly, without brute-force. 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. In practice, spawning a new payload to pass-the-hash is a pain. Because the NTLM hash is the key to calculating the response, an adversary does not necessarily need to obtain the victimâs plain text password to authenticate, hence retrieving the hash from LSASS memory using Mimikatz is â¦ Pass-The-Hash toolkit is a project from the pioneers of the infamous NTLM pass-the-hash technique (see slides from the BlackHat conference). The official Microsoft documentation detailing how "The client computes a cryptographic hash of the password and discards the actual password." The token stolen from our bogus process will continue to reference the username, domain, and password hash you provide. The use of Pass-the-Hash (PtH) attacks against Windows environments has been welldocumented over the years. Existing Windows authentication protocols, which directly use the password hash, have had a long history of problems.As of January 2013, Microsoftâs official line on NTLM, their workhorse logon authentication software, is that you should not be using version 1âthe newer v2 is â¦ One of those hash types is an MD4 hash of the password also known as the NTLM hash. To add to the validity of the research by Mark, the FreeRDP project has added native support for Pass-the-Hash authentication to the FreeRDP package, which is now in Kali repos. Pass the Hash (PtH) attacks can take place on local systems or in transit via man in the middle attacks. Since NTLM fails to preserve entropy, it also means detections will be noisier for PtH than for some other detections. Itâs our edition, marked as âCQURE Editionâ. It takes the password, hashes it using the MD4 algorithm, and then stores it. Does PsExec pass the hash? Our WPA and hash cracking options: â¢ Basic search (up to 1 hour) - we will search for common and default passwords only â¢ Advanced search (1-3 hours) - we will automatically select suitable wordlists and keyspaces â¢ Pro search (2-4 hours) - we will try even more wordlists and â¦ The v1 of the protocol uses both the NT and LM hash, â¦ Over Pass the hash is a combination of passing the hash and passing the ticket, so itâs called Over Pass â¦ This enables attacks called âPass-the-Hashâ where an attacker doesnât know an accountâs password, but does have its hash and is able to impersonate them. If it is Kerberos, we will be able to get a Service Ticket from the KDC only using the hash (pass-the-ticket). This is a technique where an attacker uses the NTLM hashes for authentication and bypass the standard authentication step clear text password for login, for more detail read from here. Itâs much easier to spawn a bogus process (e.g., calc.exe) and steal its token. Often as penetration testers, we successfully gain access to a system through some exploit, use meterpreter to grab the passwords or other methods like fgdump, pwdump, or cachedump and then use rainbowtables to crack those hash values. Passing the hash does not work with NTLMv2 so I fear I may be out of options, but would like to get suggestions for anything else I could try. Soft Cell : Soft Cell used dumped hashes to authenticate to other machines via pass the hash. Several tools are available for extracting hashes from Windows servers. Attack #4: Pass-the-Hash with Mimikatz. The NTLM protocol uses the NT hash for authentication and does not âsaltâ the password, which in turn means that if one grabs the hash value, authentication can â¦ The NTLM hash algorithm is much simpler than the LM hashâ¦ More Features to Worry About . This type of hash can not be used with PTH. This will generate a NetNTLMv1 response for that challenge using the impersonated userâs NTLM hash as a key. Thereâs another underlying feature that also has to be taken into account. Here Iâm logged on as the local account Paula and I want to become the local Administrator, so in order to do it, I will use Mimikatz. Therefore, the MITM attack can be performed by taking the NTLM hash value, and the authentication process is successfully performed and the PASS THE HASH method is applied.