CPTS Writeup
CRTE Writeup
130$
A.pdf with detailed steps, commands and screenshots for the CRTE Exam.
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The CRTE (Certified Red Team Expert) is an advanced, hands-on cybersecurity certification focused on Active Directory exploitation at an expert level. It is offered by Altered Security, a training provider widely respected for its deep technical content and realistic attack scenarios. The CRTE is designed for professionals who already have solid experience in Active Directory security and want to master complex attack paths, trust abuse, and advanced privilege escalation techniques in large enterprise environments. Unlike entry-level or general pentesting certifications, CRTE assumes strong foundational knowledge. It is not beginner-friendly and is typically attempted after certifications like CRTP, OSCP, or CRTO. The exam validates a candidate’s ability to operate as a skilled red teamer capable of compromising multi-domain forests with real-world constraints. 📋 Exam Format & Structure The CRTE exam is 100% practical and conducted in a live lab environment: Duration: Candidates are given 48 hours to complete the exam. Format: There are no multiple-choice questions. Success is measured by achieving specific objectives and submitting flags obtained through exploitation. Attempts: One exam attempt is included with the certification purchase. Open-book: The exam is open-book, allowing candidates to reference notes, tools, and documentation. The lab environment simulates a large enterprise Active Directory forest with multiple domains, trusts, and complex relationships, closely reflecting real corporate infrastructures. 🎯 Skills and Topics Assessed CRTE focuses heavily on advanced Active Directory attack techniques, particularly those that are commonly overlooked or poorly detected in real environments: Advanced AD Enumeration: Deep analysis of domain trusts, forest trusts, ACLs, and group relationships. Kerberos Attacks: Golden tickets, silver tickets, trust ticket abuse, and Kerberos delegation attacks. Privilege Escalation via ACLs: Exploiting misconfigured permissions such as WriteDACL, GenericAll, and shadow admin paths. Cross-Domain & Cross-Forest Attacks: Abusing trust relationships to pivot between domains and compromise forest-level assets. Persistence Techniques: Maintaining long-term access using stealthy and hard-to-detect methods. Operational Tradecraft: Choosing attack paths strategically rather than following linear exploitation steps. The exam strongly emphasizes methodology and reasoning—you are expected to identify attack paths yourself rather than being guided step by step. 🛠 Tools Used Candidates are expected to be comfortable with tools commonly used in advanced AD attacks, including PowerView, BloodHound, Mimikatz, Rubeus, Impacket, SharpHound, and custom PowerShell scripts. A deep understanding of Windows internals, Kerberos authentication, and AD security models is essential.