> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/ports-and-services/kerberos-88/kerbrute-tool.md).
# Kerbrute - Tool
Kerberos user enumeration with Kerbrute and generated username wordlists.
> Kerbrute is an open-source tool designed to perform user enumeration on a Kerberos domain. It leverages responses from the KDC (Key Distribution Center) service to identify valid users.
### **User Enumeration via Kerberos**
The `users.txt` file contains a list of potential usernames generated by combining different name formats (first name, last name, initials, etc.). These formats increase the chances of identifying valid users in an Active Directory domain.
#### Create a `users.txt` file containing potential usernames
```
hugosmith
h.smith
hugo.smith
hsmith
fergussmith
f.smith
fergus.smith
fsmith
hugobear
h.bear
hugo.bear
hbear
stevenkerb
s.kerb
steven.kerb
skerb
shauncoins
s.coins
shaun.coins
scoins
bowietaylor
b.taylor
bowie.taylor
btaylor
sophiedriver
s.driver
sophie.driver
sdriver
```
Use `kerbrute` to enumerate valid users.
```bash
kerbrute userenum -d egotistical-bank.local --dc 10.10.10.175 users.txt
```
**Operation with a predefined dictionary**
Kerbrute can also be used with public dictionaries like those in SecLists:
* **Additional options**:
* `/usr/share/SecLists/Usernames/xato-net-10-million-usernames.txt`: Uses a dictionary containing millions of potential user names.
---
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