Academic Paper from the year 2023 in the subject Computer Science - IT-Security, grade: A, , language: English, abstract: Ransomware attacks are not a new idea, but their prevalence has risen dramatically in recent times. A key explanation for this is the financial compensation that the perpetrator stands to gain, as well as the fact that crypto-currency allows for anonymous transactions. Initially a single-host menace, ransomware is rapidly developing to conduct more sophisticated attacks by spreading through a network of hosts. One of the most difficult aspects of defending from these attacks is that every ransomware caucus is always evolving, rendering individual samples unidentifiable. Common signature-based countermeasures, such as those used to fight viruses, are made ineffective as a result. Furthermore, attempting to reverse engineer each sample in order to develop successful countermeasures or solutions is an expensive venture. Much more so now that ransomware writers are beginning to use complicated methods ensuring that getting to the original source code more difficult. The researcher believes that a more general detection approach can be used to find a solution. It should be focused on the traits that all ransomware families share. This should help to shift the focus of research from samples to families. I collect meta-data about the files that are read and written during ransomware attacks using easy and fast metrics and applied a qualitative mode of data collection. These attacks have a common pattern of attempting to encrypt all of the victims' data. Encrypted files have a significant increase in entropy while the data size remains relatively unchanged. These characteristics can also be seen in normal user behaviour, such as when a user encrypts a file. As a result, we must allow encryption while also imposing a frequency limit to ensure that regular user traffic does not result in false positives.

1 Data Analytics, Big Data and Bioinformatics 2 Information Security and Networking 3 Distributed, Parallel and Cloud Computing 4 Natural Language Processing and Information Retrieval 5 Signal Processing, Multimedia and Embedded Systems 6 Green Computing and Sustainable Energy Systems

As information technology becomes increasingly essential within organizations, the reputation and role of the CIO has been diminishing To regain credibility and avoid obscurity, CIOs must take on a larger, more strategic role. Here is a blueprint for doing exactly that. This book shows how CIOs can bridge the gap between IT and the rest of the organization and finally make IT a strategic advantage rather than a cost sink.

Emerging Trends in ICT Security, an edited volume, discusses the foundations and theoretical aspects of ICT security; covers trends, analytics, assessments and frameworks necessary for performance analysis and evaluation; and gives you the state-of-the-art knowledge needed for successful deployment of security solutions in many environments. Application scenarios provide you with an insider's look at security solutions deployed in real-life scenarios, including but limited to smart devices, biometrics, social media, big data security, and crowd sourcing. - Provides a multidisciplinary approach to security with coverage of communication systems, information mining, policy making, and management infrastructures - Discusses deployment of numerous security solutions, including, cyber defense techniques and defense against malicious code and mobile attacks - Addresses application of security solutions in real-life scenarios in several environments, such as social media, big data and crowd sourcing

Know how to mitigate and handle ransomware attacks via the essential cybersecurity training in this book so you can stop attacks before they happen. Learn the types of ransomware, distribution methods, internal structure, families (variants), defense strategies, recovery methods, and legal issues related to reporting ransomware incidents to authorities and other affected parties. This book also teaches you how to develop a ransomware incident response plan to minimize ransomware damage and recover normal operations quickly. Ransomware is a category of malware that can encrypt your computer and mobile device files until you pay a ransom to unlock them. Ransomware attacks are considered the most prevalent cybersecurity threats today—the number of new ransomware variants has grown 30-fold since 2015 and they currently account for roughly 40% of all spam messages. Attacks have increased in occurrence from one every 40 seconds to one every 14 seconds. Government and private corporations are targets. Despite the security controls set by organizations to protect their digital assets, ransomware is still dominating the world of security and will continue to do so in the future. Ransomware Revealed discusses the steps to follow if a ransomware infection occurs, such as how to pay the ransom through anonymous payment methods, perform a backup and restore your affected files, and search online to find a decryption tool to unlock (decrypt) your files for free. Mitigation steps are discussed in depth for both endpoint devices and network systems. What You Will Learn Be aware of how ransomware infects your system Comprehend ransomware components in simple terms Recognize the different types of ransomware familiesIdentify the attack vectors employed by ransomware to infect computer systemsKnow how to prevent ransomware attacks from successfully comprising your system and network (i.e., mitigation strategies) Know what to do if a successful ransomware infection takes place Understand how to pay the ransom as well as the pros and cons of paying Set up a ransomware response plan to recover from such attacks Who This Book Is For Those who do not specialize in the cybersecurity field (but have adequate IT skills) and want to fully understand the anatomy of ransomware threats. Although most of the book's content will be understood by ordinary computer users, it will also prove useful for experienced IT users aiming to understand the ins and outs of ransomware threats without diving deep into the technical jargon of the internal structure of ransomware.

Connected customers, using a wide range of devices such as smart phones, tablets, and laptops have ushered in a new era of consumerism. Now more than ever, this change has prodded marketing departments to work with their various IT departments and technologists to expand consumers’ access to content. In order to remain competitive, marketers must integrate marketing campaigns across these different devices and become proficient in using technology. The Handbook of Research on Innovations in Technology and Marketing for the Connected Consumer is a pivotal reference source that develops new insights into applications of technology in marketing and explores effective ways to reach consumers through a wide range of devices. While highlighting topics such as cognitive computing, artificial intelligence, and virtual reality, this publication explores practices of technology-empowered digital marketing as well as the methods of applying practices to less developed countries. This book is ideally designed for marketers, managers, advertisers, branding teams, application developers, IT specialists, academicians, researchers, and students.

This textbook presents a proven, mature Model-Based Systems Engineering (MBSE) methodology that has delivered success in a wide range of system and enterprise programs. The authors introduce MBSE as the state of the practice in the vital Systems Engineering discipline that manages complexity and integrates technologies and design approaches to achieve effective, affordable, and balanced system solutions to the needs of a customer organization and its personnel. The book begins with a summary of the background and nature of MBSE. It summarizes the theory behind Object-Oriented Design applied to complex system architectures. It then walks through the phases of the MBSE methodology, using system examples to illustrate key points. Subsequent chapters broaden the application of MBSE in Service-Oriented Architectures (SOA), real-time systems, cybersecurity, networked enterprises, system simulations, and prototyping. The vital subject of system and architecture governance completes the discussion. The book features exercises at the end of each chapter intended to help readers/students focus on key points, as well as extensive appendices that furnish additional detail in particular areas. The self-contained text is ideal for students in a range of courses in systems architecture and MBSE as well as for practitioners seeking a highly practical presentation of MBSE principles and techniques.