Active Directory Security
Categories
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- Active Directory Security (206)
- AD Security 101 (17)
- Community Tools (19)
- Directory Modernization (9)
- From the Front Lines (69)
- Hybrid Identity Protection (64)
- Identity Attack Catalog (23)
- Identity Threat Detection & Response (138)
- Our Mission: Be a Force for Good (14)
- Purple Knight (5)
- The CISO's Perspective (16)
- Threat Research (65)
- Uncategorized (1)
Golden Ticket Attack Explained
- Huy Kha | Senior Identity & Security Architect
- Feb 02, 2025
A Golden Ticket attack occurs when an attacker forges a Kerberos Ticket Granting Ticket (TGT) to gain full control over an Active Directory environment. By compromising the KRBTGT account, which signs all Kerberos tickets, the attacker can create fake tickets for any user and gain access to any resource within…
How to Defend Against Silver Ticket Attacks
- Daniel Petri | Senior Training Manager
- Feb 02, 2025
In the complex world of cybersecurity, Golden Ticket and Silver Ticket attacks stand out as two crafty methods targeting the Kerberos authentication system. Although both attacks exploit the same system, their approaches, objectives, and implications differ. Here’s what you need to know about Silver Ticket attacks, including how they differ…
Unconstrained Delegation Explained
- Huy Kha | Senior Identity & Security Architect
- Jan 26, 2025
Cybersecurity agencies from the Five Eyes alliance, including CISA and the NSA, have urged organizations to strengthen security around Microsoft Active Directory (AD), a prime target for cyberattackers. The alliance’s recent report highlights more than a dozen tactics that threat actors use to exploit AD. Among these common techniques is…
AS-REP Roasting Explained
- Huy Kha | Senior Identity & Security Architect
- Jan 25, 2025
Authentication Server Response (AS-REP) Roasting enables attackers to request encrypted authentication responses for accounts in Active Directory that have Kerberos pre-authentication disabled. AS-REP Roasting is one of the Active Directory threats that cybersecurity agencies in the Five Eyes alliance warn about in the recent report, Detecting and Mitigating Active Directory…
Your DORA Compliance Checklist for Identity Defence
- Daniel Lattimer | Area Vice President - EMEA West
- Jan 17, 2025
This week, the European Union’s Digital Operational Resilience Act (DORA) goes into effect in an effort to provide a clear roadmap for enhancing cybersecurity across the financial services industry. All financial entities operating in or with the EU—as well as information and communication technology (ICT) providers that support such entities—are…
Why Upgrade to Lighting Intelligence from Purple Knight
- Huy Kha | Senior Identity & Security Architect
- Dec 19, 2024
For organizations of any size, managing hybrid identity security across on-premises and cloud environments can be challenging. Purple Knight has long been trusted to expose risky misconfigurations. Now, Semperis—the identity security experts behind Purple Knight—offer Lightning Intelligence, a SaaS security-posture assessment tool that automates scanning to provide continuous monitoring without…
What You Need to Know about SEC Regulation S-P Requirements and Active Directory
- James Doggett | Semperis CISO
- Dec 18, 2024
CISOs in the financial sector have another new regulatory challenge to contend with. Earlier this year, the U.S. Securities and Exchange Commission (SEC) adopted new cybersecurity incident response and disclosure rules, demanding new approaches to disaster recovery planning. For affected organizations, the new SEC Regulation S-P requirements demand a new…
Zerologon Exploit Explained
- Huy Kha | Senior Identity & Security Architect
- Nov 15, 2024
In a Zerologon exploit, an attacker with access to a network takes advantage of a critical flaw in the Netlogon Remote Protocol (MS-NRPC) to impersonate any computer, including a domain controller (DC). This flaw is known as Zerologon—a vulnerability that can give attackers full control over a domain. What is…
