Active Directory Security: Attacks and Defense from Scratch
1. Introduction Active Directory security has become the central challenge of corporate cybersecurity, and it is not a coincidence: Active Directory concentrates the credentials, policies, and access control of the entire organization. When an adversary or a Red Team compromises a domain, they gain de facto control of the company. That is why this article approaches Active Directory security from scratch with a hands-on focus: mapping the terrain with BloodHound, stealing credentials through Kerberoasting and AS-REP Roasting, escalating with Pass-the-Hash and DCSync, and rolling out the controls that make Active Directory security defensible and auditable. When you finish, you will …

