Practical documentation · Authorized use only
Rubeus
Rubeus is a Kerberos interaction toolkit. Public practical guidance must focus on protocol education, delegation policy review, ticket-lifecycle monitoring, and synthetic-lab detection validation—not harvesting, forging, replaying, or abusing tickets.
Start safely and get useful results
Best for
- • Kerberos detection labs
- • Delegation-policy review
Not for
- • Ticket abuse
- • Roasting, impersonation, or lateral movement
Before you run anything
- • Document the authorized target, time window, success criteria, data-handling rules, and a named stop contact before you begin.
- • Confirm the installed version with the tool’s version or help command, then compare its documented behavior with the linked upstream project before relying on any option.
Practical workflows
Review help in a disposable AD lab
Scenario: A training domain has synthetic identities and auditing enabled.
Rubeus.exe /helpVerify available commands while keeping the guide and lab limited to defensive planning.
Expected use: The lab must have no route to production and an approved telemetry objective.
Measure Kerberos visibility safely
Scenario: Validate that ticket-related Windows events reach the SIEM.
Use synthetic domain events and compare observed Kerberos logs with the detection design.The exercise should not harvest, inject, or replay any ticket.
Expected use: Report coverage gaps, false positives, and policy improvements.
Interpret results like an analyst
- • Kerberos event interpretation depends on domain context, service accounts, and time synchronization.
- • Detection tuning must distinguish legitimate administrative behavior from anomalous patterns.
Common mistakes and operating tips
Avoid
- • Using live domain data without a security and privacy plan.
- • Treating a detected event pattern as proof of ticket abuse without investigation.
Operational discipline
- • Treat command output as evidence, not a conclusion: retain the command, version, scope, timestamp, and a redacted result in the engagement record.
- • Start with the smallest safe scope, validate expected behavior in a lab or pilot, then expand only when the authorization and monitoring plan support it.
Verify against the current upstream
Tool behavior and release syntax can change. Treat this guide as practical operating context, then verify version-specific details against the upstream project before an assessment.
Open authoritative upstream documentation