mimikatz VS thc-hydra

Mimikatz

Typically, Mimikatz is used to extract NTLM password hashes or Kerberos tickets from memory. However, one of its lesser-known capabilities is the ability to extract plaintext passwords from dumps created for the LSASS process. This means that an attacker can compromise plaintext passwords without running any nefarious code on domain controllers. Dump files can be created interactively or using ProcDump , and in either case, the activity is unlikely to be flagged by anti-virus software. Once the dumps are created, they can be copied off the domain controller and the plaintext credentials can be harvested using Mimikatz offline.

Mimikatz can be used to perform pass-the-ticket, but in this post, we wanted to show how to execute the attack using another tool, Rubeus , lets you perform Kerberos based attacks. Rubeus is a C# toolset written by harmj0y and is based on the Kekeo project by Benjamin Delpy, the author of Mimikatz .

What is DCShadow? DCShadow is a command in the Mimikatz tool that enables an adversary to register a rogue domain controller and replicate malicious changes across the domain.

Mimikatz provides a variety of ways to extract and manipulate credentials, but one of the most alarming is the DCSync command. Using this command, an adversary can simulate the behavior of a domain controller and ask other domain controllers to replicate information — including user password data. In fact, attackers can get any account’s NTLM password hash or even its plaintext password, including the password of the KRBTGT account, which enables them to create Golden Tickets.

Using Mimikatz , it is possible to leverage the password of the KRBTGT account to create forged Kerberos Ticket Granting Tickets (TGTs) which can be used to request Ticket Granting Server (TGS) tickets for any service on any computer in the domain.

Using the ChangeNTLM and SetNTLM commands in Mimikatz , attackers can manipulate user passwords and escalate their privileges in Active Directory . Let’s take a look at these commands and what they do.

Mimikatz will extract local tickets and save them to disk for offline cracking. Simply install Mimikatz and issue a single command:

Nice tool, only unfortunate name, consider changing it. Already very well know security tool named hydra https://github.com/vanhauser-thc/thc-hydra been around since 2001. Then facebook went ahead and named their config tool hydra https://github.com/facebookresearch/hydra on top of it. Like we get it, hydra popular mythology but we could use more original naming for tools

I just started learning Rust, but I will begin building a brute-force tool. Hydra is great but lacks updates, IMHO. I started using Golang, but it sucks (I love the Go language, but it sucks for this type of task).

Hydra

Hydra (https://github.com/vanhauser-thc/thc-hydra) starting at 2023-01-28 16:31:17 [WARNING] the rdp module is experimental. Please test, report - and if possible, fix. [WARNING] Restorefile (ignored ...) from a previous session found, to prevent overwriting, ./hydra.restore [DATA] max 3 tasks per 1 server, overall 3 tasks, 21112 login tries (l:104/p:203), ~7038 tries per task [DATA] attacking rdp://10.129.202.136:3389/ [STATUS] 166.00 tries/min, 166 tries in 00:01h, 20946 to do in 02:07h, 3 active [STATUS] 121.67 tries/min, 365 tries in 00:03h, 20747 to do in 02:51h, 3 active [3389][rdp] account on 10.129.202.136 might be valid but account not active for remote desktop: login: password: , continuing attacking the account. [STATUS] 86.29 tries/min, 604 tries in 00:07h, 20509 to do in 03:58h, 2 active [ERROR] all children were disabled due too many connection errors 0 of 1 target completed, 0 valid password found [INFO] Writing restore file because 2 server scans could not be completed [ERROR] 1 target was disabled because of too many errors [ERROR] 1 targets did not complete Hydra (https://github.com/vanhauser-thc/thc-hydra) finished at 2023-01-28 16:38:23

I am searching for people interested in coding an alternative to the thc-hydra project, with additional features (implementing the Shodan api to make it automated, etc...)

Hydra (https://github.com/vanhauser-thc/thc-hydra) starting at 2022-10-22 13:09:13