Challenge Overview

The Poisoned Relay challenge involves leveraging the insecurity of LLMNR/NBT-NS name resolution and the absence of SMB message signing requirements on Windows hosts. Your objective is to act as a man-in-the-middle, responding to name resolution requests for non-existent services, capturing NTLM authentication attempts, and then relaying these credentials to another vulnerable target to establish an administrative SMB session. The target network is 192.168.1.0/24. Success will grant you access to sensitive shares and the flag.

What You Will Learn

  • Ability to enumerate and analyze Windows network traffic and name resolution behavior.
  • Understanding of LLMNR\\/NBT-NS poisoning concepts and exploitation workflows.
  • Skill in capturing NTLM authentication hashes and handling relay attack scenarios.
  • Competence in performing lateral movement and accessing sensitive network shares.
  • Practical understanding of internal network attack chains and post-exploitation techniques.

Program Curriculum

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