Top Active Directory Attacks: Understand, then Prevent and Detect
summary
Covers concrete AD failures and fixes: email phishing causes 90%+ breaches, internal access plus privileges lets attackers win fast (example: 65 minutes to domain-wide ransomware), common vectors include password spraying and credential stuffing, exposed file shares and MFPs, DNS fallback/LLMNR abuse, and Kerberos attacks (krbtgt golden tickets, silver tickets, Kerberoastable accounts). Shows tools and steps: enumerate subnets with PowerShell, scan with Eyewitness, crackable-service finds via Rubeus, search secrets with Snaffler, and defenses like Azure AD Password Protection, SMB signing and managed service accounts.
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chapters (38)
- 0:00Introduction
- 0:27Agenda
- 0:52Different ways of conceptualizing breaches
- 1:29Lockheed Martin Cyberkill Train trademark
- 1:45What every attacker or attack needs
- 2:12Internal access
- 3:15Why internal access
- 4:02A 10000 employee company
- 5:12Twitter breach
- 5:59Finding the right data
- 7:09X filtration
- 7:45Ransomware
- 8:41High Level Picture
- 9:57Prevent vs Detect
- 10:23Safes
- 11:38Assume Breach
- 12:31Realistic Threat Model
- 12:59Password Spraying
- 13:51Single Factor Authentication
- 14:23Credential Stuffing
- 15:17File Sharing
- 16:27dns fallback abuse
- 17:44Look printers
- 18:42Kerberos roasting
- 18:52What are kerberos
- 21:11normal flow
- 21:30analogies
- 24:19authentication
- 25:23ticket granting
- 26:08service ticket
- 26:49kerberos steam
- 29:05preventive detective controls
- 31:28password protection
- 32:24printers
- 34:48sensitive files
- 35:24longterm action
- 36:37fallback abuse
- 38:38Jeff
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