# ropnop/kerbrute

A tool to perform Kerberos pre-auth bruteforcing

Repository: https://github.com/ropnop/kerbrute
Canonical: https://ross.abutalabs.com/products/kerbrute
Language: Go
License: Apache-2.0
License Family: permissive
Last push: 2024-08-20T10:56:06+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 2768, "days_push": 743, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3429, forks 488 (observed 2026-08-28T04:08:04.009111+00:00)

## What it is
Kerbrute is a Go-based CLI tool for brute-forcing and enumerating valid Active Directory accounts through Kerberos Pre-Authentication. It offers fast username validation, password spraying, and credential brute-forcing against a domain controller without requiring a Kerberos client installation.

## Use cases
- enumerate valid active directory usernames via kerberos
- password spray a domain with a single password
- bruteforce a single user's password from a wordlist
- test username:password combos against a domain controller
- find valid ad accounts without triggering event 4625 logs

## When to choose
- you need fast kerberos-based username enumeration or password spraying against Active Directory
- you want a single static binary with no Kerberos client dependencies
- stealth matters - pre-auth failures avoid traditional logon failure events

## When to avoid
- you need to attack non-Active Directory Kerberos realms
- account lockout policies are strict and you cannot safely control attempt rates
- you need GUI-based or report-generating pentest tooling

## Facets
- artifact type: cli-tool
- maturity: stable
- function: security, penetration-testing, cli
- domain: security, penetration-testing, developer-tools
- platform: windows, cli, cross-platform
- tags: kerberos, active-directory, password-spraying, user-enumeration, bruteforce, pentesting, red-team, windows-domain, linux, macos

## Member repositories
- ropnop/kerbrute (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:04.009111+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:37:48.096403+00:00, confidence not recorded.
  - readme: https://github.com/ropnop/kerbrute (fetched 2026-08-28T04:08:04.009111+00:00, sha cc1d50001a15)
- Data as of 2026-08-30T08:39:29.467469+00:00.