Intro to Defensive Security | Try Hack Me |Jr Penetration Tester | By Mohit Damke
Intro to Defensive Security | Try Hack Me |Jr Penetration Tester
Defensive Security: Protecting Systems
On the flip side, Defensive Security focuses on safeguarding systems from various threats.
Defensive security encompasses:
Preventing intrusions before they happen.
Detecting potential breaches.
Swiftly responding to and mitigating intrusions when they do occur.
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Tasks Associated with Defensive Security:
Defensive security involves various tasks aimed at safeguarding systems and networks against cyber threats. Here are some essential tasks:
User Cyber Security Awareness: Educate users about cyber security to empower them to protect their systems from a wide range of potential attacks.
Documenting and Managing Assets: Understand and effectively manage the diverse systems and devices in the environment to ensure comprehensive security.
Updating and Patching Systems: Keep all computers, servers, and network devices up to date by applying patches to address known vulnerabilities.
Setting up Preventative Security Devices: Deploy essential components like Intrusion Prevention Systems (IPS) and firewalls. Firewalls restrict incoming and outgoing network traffic, while IPS blocks network traffic that matches attack signatures.
Setting up Logging and Monitoring Devices: Establish effective network logging and monitoring mechanisms. These tools are crucial for detecting and investigating malicious actions and attacks.
These tasks represent just a portion of the broader scope of defensive security. Other important aspects include:
Security Operations Center (SOC): Maintain a dedicated team and facility responsible for monitoring, detecting, and responding to security incidents in real time.
Threat Intelligence: Gather and analyze information about potential threats and adversaries to proactively enhance security measures.
Digital Forensics and Incident Response (DFIR): Develop strategies and procedures to investigate and respond to security incidents, ensuring effective mitigation and recovery.
Malware Analysis: Study and understand malicious software to develop strategies for identifying, containing, and eliminating malware threats.
Remember, a comprehensive defensive security strategy integrates these tasks and more to create a robust defense against evolving cyber threats.
QUESTIONS
Q : Which team focuses on defensive security?
~ Blue Team
Security Operations Center (SOC)
Security Operations Center (SOC) is a team of cyber experts that monitors networks for malicious events. Key areas for a SOC include:
Vulnerabilities: Address system weaknesses with patches or precautions to thwart exploitation.
Policy Violations: Enforce rules to safeguard networks, flagging actions like unauthorized data downloads.
Unauthorized Activity: Swiftly detect and block incidents like stolen credentials used by attackers.
Network Intrusion: Even with strong defenses, intrusions can happen—detect and halt them promptly.
Threat Intelligence: Acquired through "Threat-Informed Defense," it gathers real or potential intelligence to help organizations prepare against future adversaries. As attackers have varied objectives, gathering ample information is crucial to prevent mishaps.
Data is required for intelligence.
It is necessary to collect, process, and analyze data.
Data is gathered from both local and public sources, such as network logs and forums.
The goal of data processing is to organize data into a format that can be analyzed.
The goal of the analysis phase is to learn more about the attackers and their motivations, as well as to compile a list of recommendations and practical activities.
Digital Forensics : Deals with investigating and analyzing digital evidence to uncover cybercrimes and gather legal proof.
Incident Response : Involves swift and organized actions to manage and mitigate the impact of cybersecurity incidents, reducing damage and recovery time.
Malware Analysis : Examines malicious software to comprehend its functionality, origins, and potential dangers, aiding in devising effective defense strategies.
Here are explanations of the mentioned types of malware:
Virus: A code snippet integrated into a program that spreads between computers. It alters, overwrites, or deletes files, often slowing down or rendering the infected computer unusable.
Trojan Horse: A program that appears beneficial but hides malicious intent. For instance, a seemingly harmless video player downloaded from a suspicious site might grant an attacker unrestricted access to the victim's system.
Ransomware: A malicious software that encrypts user files, making them inaccessible without an encryption key. Attackers demand a "ransom" to provide the key and restore access to the victim's data.
QUESTIONS
Q: What would you call a team of cybersecurity professionals that monitors a network and its systems for malicious events?
~ Security Operations Center
Q: What does DFIR stand for?
~ Digital Forensics Incident Response
Q: Which kind of malware requires the user to pay money to regain access to their files?
~ Ransomware
Q: Which team focuses on defensive security?
~ Blue Team
~ THM{THREAT-BLOCKED}