Endpoint Detection and Response (EDR)

5 minutes 5 Questions

Endpoint Detection and Response (EDR) is an advanced security solution that collects, monitors, and analyzes data from endpoint devices. It helps organizations detect and respond to advanced threats, such as zero-day exploits and Advanced Persistent Threats (APTs), that evade traditional security layers. EDR solutions use machine learning algorithms, behavioral analysis, and memory inspection to identify and respond to suspicious activities and indicators of compromise. By implementing an EDR solution, organizations can proactively detect and mitigate threats in real-time, reducing the dwell time of attackers on their networks and minimizing the impact of a security breach.

Guide for Endpoint Detection and Response (EDR)

What it is:
Endpoint Detection and Response (EDR) is a cyber security solution that utilities real-time data to identify, prevent and respond to potential threats on endpoint devices. It’s a critical aspect of an organization’s security strategy.

Why it is important:
EDR is crucial to businesses as it offers continuous surveillance and response to advanced threats. It provides layered protection needed to safeguard endpoint devices which are often targeted points of entry for many types of cyber threats.

How it works:
EDR solutions work by collecting data from endpoint devices, analyzing this information to detect unusual patterns or behaviors and then responding appropriately when a potential threat is identified. They use both signature-based and behavior-based detection methods.

Study Tips for Endpoint Detection and Response (EDR) in exams:
1. Understand what EDR does and how it fits into the bigger picture of network security.
2. Familiarize yourself with common EDR terminologies and technologies.
3. Study the benefits and limitations of EDR.
4. Practice with actual exam questions or mock tests for better understanding.
5. Be able to compare EDR with other cyber security solutions.

Remember, receiving the right answer is almost always less important than understanding why that answer is correct. Focus on understanding concepts thoroughly.

Test mode:

Exam (Timed)

Practice (With explanations)

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Question 1

An EDR system alerts staff of potentially compromised credentials for a high-level executive. What should be the first step in response to this security incident?

Immediately reset the executive's password. Educate the executive on password security. Request more information from the EDR system. Shutdown the executive's computer.

Correct Answer: Immediately reset the executive's password.

Immediately resetting the executive's password is the best way to prevent unauthorized access to their accounts. Other options don't address the urgent nature of the issue or fail to effectively mitigate the threat.

Question 2

Your company has implemented an EDR solution to detect and respond to security threats. An analyst observes a potential malware infection on a user's computer. Upon inspection, they find numerous abnormal outbound connections. What should be the next step?

Notify the user of the malware infection. Ignore the abnormal connections. Isolate the affected system. Immediately reimage the computer.

Correct Answer: Isolate the affected system.

Isolating the affected system will prevent the threat from spreading to other systems on the network and allow for further investigation. Ignoring the connections, notifying the user, deleting files, and disabling the EDR solution could lead to bigger problems or miss critical information.

Question 3

An EDR solution sends an alert that a user's computer has a large number of unsuccessful login attempts on various accounts, as well as unusually high CPU usage. What attack is most likely occurring?

DDoS. Phishing. Password cracking. Data Exfiltration.

Correct Answer: Password cracking.

Unsuccessful login attempts along with high CPU usage are indications of password cracking, as it uses processing power to guess passwords. Other mentioned attacks don't fit the given scenario.

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