Active Directory Security

1. Active Directory – The Forgotten Heart of the Network

Active Directory (AD) is the core system managing all identities (users), devices (computers), and policies (Group Policy) of a business. Hackers know: Compromising the Domain Controller (AD server) means gaining control over the entire company.

However, AD is often installed and left running for years without security assessments, leading to accumulated risks.

2. Most Common Vulnerabilities in AD Systems

Risk	Real Impact
Passwords that never expire	Old passwords leak online, hackers use them to easily log in.
Old employee accounts not deleted	Accounts remain Active, becoming backdoors.
Too many Domain Admins	If just 1 Domain Admin computer is hacked, the entire AD falls.
Kerberoasting & AS-REP Roasting	Protocol design flaws allow hackers to extract password hashes and crack them offline.

3. AD Security Assessment & Hardening Services

We provide a comprehensive solution to clean up and protect AD:

Current State Audit

• Use in-depth review tools (BloodHound, PingCastle) to map attack paths.
• Find accounts with excessive privileges and misconfigured GPOs.

Planning & Authorization (Tiering Model)

• Apply Microsoft Tier Model: Separate admin rights for Domain Controllers (Tier 0), Servers (Tier 1), and Workstations (Tier 2).
• Ensure lower-tier Admins cannot log into higher-tier servers.

Configuration Hardening

• Enable detailed AD log monitoring, disable old protocols (SMBv1, NTLMv1).
• Prevent common exploitation techniques like Pass-the-Hash.

4. Value Delivered

Stop Ransomware attacks spreading through AD in their tracks. Clean up the IT environment, ensuring only valid accounts have the minimum necessary rights to work.