Why Active Directory Is a Target for Cybercriminals and How to Defend Against Attacks

There are many organizations whose identity and access management have been built around an AD. What Active Directory uses is the goods of permanent across employees to employee, from user accounts, groups, and other attributes on a network, in helping to manage who can do what in an organization. Cybercriminals are increasingly targeting Active Directory because it’s the guardian of systems and data. If it’s Active Directory that is breached, the bad actors potentially have the edge across a company’s entire network. That’s why in this blog post, we are going to dive into why AD is a lucrative attack vector for cyber criminals and how organizations can be safeguarded against attacks with next-gen security technology such as ITDR (Identity Threat Detection and Response).

Why Cybercriminals Would Target Active Directory

With Active Directory, you can manage the IT resources of your organization with ease, such as databases, applications, services, and much more. AD is the big fish for the bad guys because it stores all user authentication and authorization. Attackers can steal trade secrets by controlling AD, claiming to be authorized users, and lifting their rights to enter private systems and steal data.

Cybercriminals are targeting Active Directory for a number of reasons.

• Active Directory houses a lot of personal information, such as passwords, user privileges, and login information. For an attacker who wants to move through a network undetected, that’s valuable information.
• With attackers already in AD, lateral movement helps them to elevate their privileges and reach other machines. Without the AD as a key target, a network attack chain would be incomplete.
• For instance, if an attacker has an account, they can often raise their access level using Active Directory. They have control relative to identity with the group memberships and can provide themselves with more access to those systems
• Hijacking Active Directory allows hackers to stay inside the system for a long time, helping them to steal data or launch a long-term attack that goes undetected.

Techniques to Active Directory Common Attacks

There are a number of ways in which cybercriminals target and abuse Active Directory. The most commonly used methods include:

1. Credential dumping: Tools that exfiltrate credentials from Active Directory grant attackers access to usernames and passwords. Then, with those credentials, they can emulate the real users and access the restricted resources.
   
2. Pass-the-Hash Attacks: In pass-the-hash attacks, where they steal password hashes from AD, attackers can access network resources without requiring the actual password.

3. Kerberos ticket forgery: Kerberos is a network authentication protocol linked to AD. Forged Kerberos tickets let hackers bypass password-based security mechanisms and gain illegal access to systems needing authentication.
   
4. Brute Force and Password Spraying: Kerberos is a network authentication protocol related to AD. Hackers can bypass password-based security systems, break the role-based system to gain unauthorized access to servers by generating Kerberos tickets.

5. Exploiting Vulnerabilities: Active Directory (AD) is an imperfect technology, just like every other. Cyberthieves likely will take advantage of that lapse to illegally enter if the security tweaks are not made quickly.

How ITDR Protects Against Active Directory Attacks

Securing Active Directory against hackers is a multipronged security strategy. In today’s threat environment, ITDR (Identity Threat Detection and Response) is one of the best solutions available. ITDR is a security technology that’s designed to identify and act on threats that are directed at identities and user credentials, especially within AD environments.

ITDR solutions constantly monitor user activity within AD so they can identify suspicious behavior and potential threats. Its intrusion detection system (IDTR) can detect abnormal login behavioral patterns or user rights modification patterns, which could imply an occurrence of a security breach. ITDR-based systems (system that applies iterative detection and response to threats) can use automated response in order to minimize the likelihood of being attacked.

Here are several ways ITDR enhances security in Active Directory environments:

1. Monitoring and Detection in Real-Time

ITDR product can watch Active Directory in either real-time or near-real time by tracking for abnormal behavior like unauthorized privilege elevation, fraudulent log-in and log-on from unknown machines. By continually analyzing the actions that users are taking, IDRS can catch hackers in the process of laterally moving, or trying to figure out a path that will allow them to gain privileged status and remain unseen.

2. Spotting Anomalies Among 

The most important task of ITDR is suspicious behavior detection of user. ITDR, for instance, will raise the alarm on sketchy action like lots of bad login attempts or a user logging in from a device or location they would in no way dream of using. To stop a breach from escalating further, companies must be able to discern such anomalies in the moment and do something about it.

3. An Automatic Events Management System

ITDR can also automatically trigger an incident response if an attack is found. Some responses are to inform your security team to act, to lock the user’s account or require using multi-factor authentication (MFA). By early repelling the threat, the nearly automatic behavior minimizes opportunities for injury.

4. Watching Privileged Accounts

It is very common for attackers to go after privileged Active Directory (AD) accounts. IT data loss prevention solutions can also track these accounts for out-of-the-ordinary behavior like changes to essential software configuration settings or escalating privileges. ITDR notifies security of an intruder’s attempt to escalate access. Aggregating Threat Intelligence Many IT disaster recovery solutions offer threat intelligence feeds that allow you to remain current on known attack patterns and vulnerabilities. By adding external threat data, ITDR can offer more robust defence against dynamic AD threats.

Additional Techniques to Harden Active Directory

While ITDR is a great one, firms need to adhere to other Best Practices to secure their AD systems. Users should possess only the rights that are required to do their jobs. By restricting users from necessary systems and data it’s also reduces potential damage an attacker may do should be get hold of an account.

1. Even if your password is compromised, adding a second layer of protection through multi-factor security (MFA) significantly raises the bar for a cybercriminal attempting to compromise the account.
2. If you periodically audit Active Directory, it can help you ascertain the right settings as well as point out errors and issues. Early prevention of tooth accidents depends on regular control.
3. The regular installation of security patches can help to protect against known vulnerabilities in Active Directory and other distributed systems. Unpatched security flaws are typically exploited by hackers to gain access to systems.
4. Train your staff about the value of good password habits, how to spot phishing attacks and how to act on security best practices. More often than not, humans cause security vulnerabilities, so raising awareness is so important.

Final 

Active Directory as the lifeblood of all companies’ LANs, Active Directory is a hacker magnet. Groups can defend their AD system against attacks by using security measures. When used in combination with best practices like accountability through constant monitoring, multi-factor authentication (MFA), and privileged access management (PAM), it becomes a key component that’s critical to the health of an organization’s Active Directory. Organizations can secure their Active Directory to create an impenetrable fortress but will never sleep well knowing that the adversary is living inside.