Incident Containment and Eradication: Techniques and Best Practices

Question 1

In incident eradication, what is the primary objective of malware removal?

Accepted Answer

Preventing further harm or breaches

Answer

Collecting evidence for forensic analysis

Answer

Restoring the system to a secure state

Answer

Patching vulnerabilities exploited by the malware

Question 2

In incident containment, which action is crucial for limiting the extent of the compromise?

Accepted Answer

Identifying and isolating infected systems

Answer

Collecting evidence for forensic analysis

Answer

Restoring systems to a clean state

Answer

Patching all vulnerable systems

Question 3

In incident response, which tool is most widely used to remove malware effectively?

Accepted Answer

Antivirus software

Answer

Disk imaging tools

Answer

Network scanners

Answer

Vulnerability assessment tools

Question 4

Which vulnerability management strategy is crucial for preventing future incidents?

Accepted Answer

Regular vulnerability scanning and patching

Answer

Implementing intrusion detection and prevention systems

Answer

Conducting security audits and risk assessments

Answer

Educating users on security best practices

Question 5

In network segmentation, which of the following is NOT an advantage for incident containment?

Accepted Answer

Enhancing network performance

Answer

Limiting the spread of malware

Answer

Reducing the severity of incidents

Answer

Supporting isolation and eradication efforts

Question 6

In incident containment, what is the primary role of intrusion detection and prevention systems (IDPS)?

Accepted Answer

Detecting and blocking malicious network traffic

Answer

Gathering data for forensic analysis

Answer

Isolating infected systems

Answer

Backing up critical data

Question 7

Which step in incident containment involves isolating infected systems to prevent the spread of the incident?

Accepted Answer

Isolation

Answer

Identification

Answer

Containment

Answer

Eradication

Question 8

What is the most effective approach to completely remove malware from a system?

Accepted Answer

Reformatting the system and reinstalling the operating system

Answer

Using an antivirus scanner

Answer

Manually searching for and deleting malicious files

Answer

Contacting the malware vendor for specific removal instructions

Question 9

Which system hardening technique is the most crucial in preventing system vulnerabilities?

Accepted Answer

Applying security patches and updates

Answer

Disabling unnecessary services and ports

Answer

Implementing a firewall

Answer

Using a network intrusion detection system (NIDS)

Question 10

What is the primary purpose of collecting forensic evidence during incident response?

Accepted Answer

To identify the root cause and gather evidence for legal proceedings

Answer

To restore affected systems to their original state

Answer

To prevent future incidents from occurring

Answer

To communicate with stakeholders and the media

Question 11

Which of the following is a distinctive symptom of a ransomware infection?

Accepted Answer

Encryption of system files, rendering them inaccessible

Answer

Slow system performance

Answer

Suspicious pop-ups or notifications

Answer

Network connectivity issues

Question 12

Which tool is primarily used to analyze network traffic for suspicious activity?

Accepted Answer

Network intrusion detection system (NIDS)

Answer

Security information and event management (SIEM) system

Answer

Vulnerability scanner

Answer

Antivirus scanner

Question 13

What is the overarching goal of a disaster recovery plan?

Accepted Answer

To restore critical business functions in the event of a major incident

Answer

To prevent incidents from occurring

Answer

To identify potential threats and vulnerabilities

Answer

To train employees on incident response procedures

Question 14

In incident response, who is responsible for coordinating the response team and making critical decisions?

Accepted Answer

Incident commander

Answer

Investigator

Answer

Communicator

Answer

Security analyst

Question 15

The primary objective of incident containment is to:

Accepted Answer

Prevent or minimize further damage or spread

Answer

Identify the scope and impact of the incident

Answer

Restore affected systems to normal operation

Answer

Determine the responsible party

Question 16

To effectively isolate compromised hosts during incident containment, it is essential to:

Accepted Answer

Disconnect them from the network

Answer

Shut down all running processes

Answer

Examine system logs for suspicious activity

Answer

Wait for further instructions from management

Question 17

The purpose of vulnerability patching is to:

Accepted Answer

Address known security weaknesses and reduce exposure to threats

Answer

Monitor network traffic for suspicious activity

Answer

Prevent unauthorized access to systems

Answer

Detect and respond to security incidents

Question 18

A best practice for effective incident eradication is to:

Accepted Answer

Restore systems from known good backups

Answer

Install new software on affected systems

Answer

Reusing existing passwords for new accounts

Answer

Restart systems without investigating the root cause

Question 19

How does encryption contribute to both preventing and eradicating cybersecurity incidents?

Accepted Answer

Encryption acts as a shield, preventing unauthorized access to sensitive data and containing incidents by limiting malware spread.

Answer

Encryption primarily aids in recovering encrypted data after an incident, with limited impact on prevention and eradication.

Answer

Encryption is solely effective in preventing incidents and has no role in eradication.

Answer

Encryption has no relevance in incident response and is mainly used for data protection during transmission.

Question 20

Which of the following is the primary goal of incident containment?

Accepted Answer

To isolate and prevent the spread of the incident

Answer

To eradicate the underlying malware

Answer

To restore normal system operations

Question 21

What is the first critical step in the malware removal process?

Accepted Answer

Identify the infected system and isolate it from the network

Answer

Run antivirus software scans on all systems immediately

Answer

Restore the system from a clean backup

Question 22

Why is patching vulnerabilities crucial during incident eradication?

Accepted Answer

To prevent exploitation of known weaknesses and further attacks

Answer

To remove malware that has already infected the system

Answer

To restore system functionality to its normal state

Question 23

Which of the following is considered an incorrect practice during incident containment?

Accepted Answer

Allowing users to continue accessing infected systems

Answer

Shutting down affected services

Answer

Isolating infected systems from the network

Question 24

Which type of malware is known for encrypting files and demanding ransom payments?

Accepted Answer

Ransomware

Answer

Worm

Answer

Trojan

Answer

Virus

Question 25

What is the main purpose of system hardening?

Accepted Answer

To minimize the attack surface and reduce vulnerabilities

Answer

To recover data and restore systems to a previous state

Answer

To detect and respond to incidents more effectively

Question 26

What is the recommended best practice for restoring systems after an incident?

Accepted Answer

Restore from a clean backup created before the incident occurred

Answer

Reinstall the operating system and all applications

Answer

Run antivirus software scans and delete any detected malware