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Cybersecurity – Attack and Defense Strategies
Cybersecurity – Attack and Defense Strategies

Cybersecurity – Attack and Defense Strategies: Counter modern threats and employ state-of-the-art tools and techniques to protect your organization against cybercriminals , Second Edition

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Profile Icon Yuri Diogenes Profile Icon Dr. Erdal Ozkaya
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Full star icon Full star icon Full star icon Full star icon Half star icon 4.6 (24 Ratings)
Paperback Dec 2019 634 pages 2nd Edition
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Profile Icon Yuri Diogenes Profile Icon Dr. Erdal Ozkaya
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Full star icon Full star icon Full star icon Full star icon Half star icon 4.6 (24 Ratings)
Paperback Dec 2019 634 pages 2nd Edition
eBook
€44.99 €50.99
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Cybersecurity – Attack and Defense Strategies

Incident Response Process

In the last chapter, you learned about the three pillars that sustained your security posture, and two of them (detection and response) are directly correlated with the incident response (IR) process. To enhance the foundation of your security posture, you need to have a solid incident response process. This process will dictate how to handle security incidents and rapidly respond to them. Many companies do have an incident response process in place, but they fail to constantly review it to incorporate lessons learned from previous incidents, and on top of that, many are not prepared to handle security incidents in a cloud environment.

In this chapter, we're going to be covering the following topics:

  • The incident response process
  • Handling an incident
  • Post-incident activity
  • Considerations regarding IR in the cloud

First, we will cover the incident response process.

The incident response process

There are many industry standards, recommendations, and best practices that can help you to create your own incident response. You can still use those as a reference to make sure you cover all the relevant phases for your type of business. The one that we are going to use as a reference in this book is the computer security incident response (CSIR)—publication 800-61R2 from NIST [1]. Regardless of the one you select to use as a reference, make sure to adapt it to your own business requirements. Most of the time in security the concept of "one size fits all" doesn't apply; the intent is always to leverage well-known standards and best practices and apply them to your own context. It is important to retain the flexibility to accommodate your business needs in order to provide a better experience when operationalizing it.

Reasons to have an IR process in place

Before we dive into more details about the process itself, it is important...

Handling an incident

Handling an incident in the context of the IR life cycle includes the detection and containment phases.

In order to detect a threat, your detection system must be aware of the attack vectors, and since the threat landscape changes so rapidly, the detection system must be able to dynamically learn more about new threats and new behaviors, and trigger an alert if a suspicious activity is encountered.

While many attacks will be automatically detected by the detection system, the end user has an important role in identifying and reporting the issue in case they find a suspicious activity.

For this reason, the end user should also be aware of the different types of attack and learn how to manually create an incident ticket to address such behavior. This is something that should be part of the security awareness training.

Even with users being diligent by closely watching for suspicious activities, and with sensors configured to send alerts when an attempt...

Post-incident activity

The incident priority may dictate the containment strategy—for example, if you are dealing with a DDoS attack that was opened as a high-priority incident, the containment strategy must be treated with the same level of criticality. It is rare that the situations where the incident is opened as high severity are prescribed medium-priority containment measures, unless the issue was somehow resolved in between phases.

Real-world scenario

Let's use the WannaCry outbreak as a real-world example, using the fictitious company Diogenes & Ozkaya Inc. to demonstrate the end-to-end incident response process.

On May 12, 2017, some users called the help desk saying that they were receiving the following screen:

Figure 5: A screen from the WannaCry outbreak

After an initial assessment and confirmation of the issue (detection phase), the security team was engaged and an incident was created. Since many systems were experiencing the same issue...

Incident response in the cloud

When we speak about cloud computing, we are talking about a shared responsibility [4] between the cloud provider and the company that is contracting the service. The level of responsibility will vary according to the service model, as shown in the following diagram:

Figure 6: Shared responsibility in the cloud

For Software as a service (SaaS), most of the responsibility is on the cloud provider; in fact, the customer's responsibility is basically to keep their infrastructure on premises protected (including the endpoint that is accessing the cloud resource). For Infrastructure as a service (IaaS), most of the responsibility lies on the customer's side, including vulnerability and patch management.

Understanding the responsibilities is important in order to understand the data gathering boundaries for incident response purposes. In an IaaS environment, you have full control of the virtual machine and have complete access to all logs...

Summary

In this chapter, you learned about the incident response process, and how this fits into the overall purpose of enhancing your security posture.

You also learned about the importance of having an incident response process in place to rapidly identify and respond to security incidents. By planning each phase of the incident response life cycle, you create a cohesive process that can be applied to the entire organization. The foundation, of the incident response plan is the same for different industries, and on top of this foundation, you can include the customized areas that are relevant to your own business. You also came across the key aspects of handling an incident, and the importance of post-incident activity—which includes full documentation of the lessons learned—and using this information as input to improve the overall process. Lastly, you learned the basics of incident response in the cloud and how this can affect your current process.

In the next...

References

  1. You can download this publication at http://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-61r2.pdf.
  2. According to Computer Security Incident Response (CSIR)—Publication 800-61R2 from NIST, an event is "any observable occurrence in a system or network". More information at http://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-61r2.pdf.
  3. More information about this patch at https://technet.microsoft.com/en-us/library/security/ms17-010.aspx.
  4. More information about this subject at https://blog.cloudsecurityalliance.org/2014/11/24/shared-responsibilities-for-security-in-the-cloud-part-1/.
  5. For Microsoft Azure, read this paper for more information about incident response in the cloud https://gallery.technet.microsoft.com/Azure-Security-Response-in-dd18c678.
  6. For Microsoft Online Services, you can use this from https://cert.microsoft.com/report.aspx.
  7. Watch the author Yuri Diogenes demonstrating how to use Azure Security...
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Key benefits

  • Covers the latest security threats and defense strategies for 2020
  • Introduces techniques and skillsets required to conduct threat hunting and deal with a system breach
  • Provides new information on Cloud Security Posture Management, Microsoft Azure Threat Protection, Zero Trust Network strategies, Nation State attacks, the use of Azure Sentinel as a cloud-based SIEM for logging and investigation, and much more

Description

Cybersecurity – Attack and Defense Strategies, Second Edition is a completely revised new edition of the bestselling book, covering the very latest security threats and defense mechanisms including a detailed overview of Cloud Security Posture Management (CSPM) and an assessment of the current threat landscape, with additional focus on new IoT threats and cryptomining. Cybersecurity starts with the basics that organizations need to know to maintain a secure posture against outside threat and design a robust cybersecurity program. It takes you into the mindset of a Threat Actor to help you better understand the motivation and the steps of performing an actual attack – the Cybersecurity kill chain. You will gain hands-on experience in implementing cybersecurity using new techniques in reconnaissance and chasing a user’s identity that will enable you to discover how a system is compromised, and identify and then exploit the vulnerabilities in your own system. This book also focuses on defense strategies to enhance the security of a system. You will also discover in-depth tools, including Azure Sentinel, to ensure there are security controls in each network layer, and how to carry out the recovery process of a compromised system.

Who is this book for?

For the IT professional venturing into the IT security domain, IT pentesters, security consultants, or those looking to perform ethical hacking. Prior knowledge of penetration testing is beneficial.

What you will learn

  • The importance of having a solid foundation for your security posture
  • Use cyber security kill chain to understand the attack strategy
  • Boost your organization's cyber resilience by improving your security policies, hardening your network, implementing active sensors, and leveraging threat intelligence
  • Utilize the latest defense tools, including Azure Sentinel and Zero Trust Network strategy
  • Identify different types of cyberattacks, such as SQL injection, malware and social engineering threats such as phishing emails
  • Perform an incident investigation using Azure Security Center and Azure Sentinel
  • Get an in-depth understanding of the disaster recovery process
  • Understand how to consistently monitor security and implement a vulnerability management strategy for on-premises and hybrid cloud
  • Learn how to perform log analysis using the cloud to identify suspicious activities, including logs from Amazon Web Services and Azure

Product Details

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Publication date : Dec 31, 2019
Length: 634 pages
Edition : 2nd
Language : English
ISBN-13 : 9781838827793
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Product Details

Publication date : Dec 31, 2019
Length: 634 pages
Edition : 2nd
Language : English
ISBN-13 : 9781838827793
Category :
Languages :
Concepts :
Tools :

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Table of Contents

19 Chapters
Security Posture Chevron down icon Chevron up icon
Incident Response Process Chevron down icon Chevron up icon
What is a Cyber Strategy? Chevron down icon Chevron up icon
Understanding the Cybersecurity Kill Chain Chevron down icon Chevron up icon
Reconnaissance Chevron down icon Chevron up icon
Compromising the System Chevron down icon Chevron up icon
Chasing a User's Identity Chevron down icon Chevron up icon
Lateral Movement Chevron down icon Chevron up icon
Privilege Escalation Chevron down icon Chevron up icon
Security Policy Chevron down icon Chevron up icon
Network Segmentation Chevron down icon Chevron up icon
Active Sensors Chevron down icon Chevron up icon
Threat Intelligence Chevron down icon Chevron up icon
Investigating an Incident Chevron down icon Chevron up icon
Recovery Process Chevron down icon Chevron up icon
Vulnerability Management Chevron down icon Chevron up icon
Log Analysis Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon

Customer reviews

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Full star icon Full star icon Full star icon Full star icon Half star icon 4.6
(24 Ratings)
5 star 87.5%
4 star 4.2%
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2 star 0%
1 star 8.3%
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Jacob Hinkle Dec 07, 2022
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This book is an ambitious and excellent introduction to the cyber security field and the nuances of both red and blue team strategies. This book is a fantastic tool for those just getting into the field and an excellent reference source for seasoned veterans looking to brush up on the myriad of topics it covers.Others have unfairly maligned the book as not being in-depth as much when it is clearly written as an introduction and not meant to teach any one topic in great depth.I found the vulnerability management section particularly useful for creating an efficient and effective vulnerability management program.
Amazon Verified review Amazon
Osama Faheem Feb 23, 2020
Full star icon Full star icon Full star icon Full star icon Full star icon 5
For few years I was looking for a book which can clear concepts in Cybersecurity. This book totally comes under that spectrum. It is well written book and to be very honest whatever I have not learned from my university I am learning from this book. I would say a must book for people who are starting career in Cybersecurity
Amazon Verified review Amazon
Matthew Cook Dec 12, 2021
Full star icon Full star icon Full star icon Full star icon Full star icon 5
I like that you can skim through to certain parts that you need or are interested in learning quickly and then applying.
Amazon Verified review Amazon
Edshel Torres Aug 16, 2021
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Was able to read this book and is excellent for any person that will like to enter in this field of cybersecurity. Al basic details explains and a lot of labs to practice
Amazon Verified review Amazon
Glen Jan 21, 2020
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This book contains the essential knowledge for anyone who is interested in learning or pursuing a career in the field of cybersecurity. Whether you're a beginner or a seasoned professional within the industry, this is a must-have book for all.
Amazon Verified review Amazon
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