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Tool Demo: ImproHound - Identify AD Tiering Violations

Jonas Knudsen

Jonas Knudsen introduces ImproHound, an open-source tool built on BloodHound data to automatically detect Active Directory tiering violations and dangerous access paths.

Summary

The Challenge of Enforcing Active Directory Tiering

Microsoft's Enterprise Access Model divides Active Directory into three distinct security tiers (Tier 0, Tier 1, Tier 2) to prevent workstation compromise from escalating to domain controllers.

Identifying Lateral Movement Paths in Complex AD Graphs

Jonas Knudsen explains why manual auditing fails in large enterprise directories containing thousands of overlapping ACL permissions and service accounts.

Introducing ImproHound for Automated Tiering Analysis

Knudsen demonstrates ImproHound, an open-source analytical tool that ingests BloodHound graph data to automatically identify tiering violations and high-risk privilege paths.

Remediating Critical Exposure Paths

The author provides administrators with prioritized remediation steps to decouple tiering violations and eliminate dangerous credential exposure.

Related talks

Blue Team Village·41 min

  • DEF CON
  • Blue Team
  • Date: Aug 2019
  • Location: Las Vegas

Scoubi

BloodHound was originally built for Pentesters to easily identify highly complex attack paths but it can also be used to improve the overall security posture of your Active Directory. We will start with a short introd...

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