Ransomware

Defending Against Digital Extortion

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Author: Allan Liska,Timothy Gallo

Publisher: "O'Reilly Media, Inc."

ISBN: 1491967854

Category: Computers

Page: 190

View: 5532

The biggest online threat to businesses and consumers today is ransomware, a category of malware that can encrypt your computer files until you pay a ransom to unlock them. With this practical book, you’ll learn how easily ransomware infects your system and what steps you can take to stop the attack before it sets foot in the network. Security experts Allan Liska and Timothy Gallo explain how the success of these attacks has spawned not only several variants of ransomware, but also a litany of ever-changing ways they’re delivered to targets. You’ll learn pragmatic methods for responding quickly to a ransomware attack, as well as how to protect yourself from becoming infected in the first place. Learn how ransomware enters your system and encrypts your files Understand why ransomware use has grown, especially in recent years Examine the organizations behind ransomware and the victims they target Learn how wannabe hackers use Ransomware as a Service (RaaS) to launch campaigns Understand how ransom is paid—and the pros and cons of paying Use methods to protect your organization’s workstations and servers

Ransomware

Defending Against Digital Extortion

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Author: Allan Liska,Timothy Gallo

Publisher: "O'Reilly Media, Inc."

ISBN: 1491967838

Category: Computers

Page: 190

View: 2492

The biggest online threat to businesses and consumers today is ransomware, a category of malware that can encrypt your computer files until you pay a ransom to unlock them. With this practical book, you’ll learn how easily ransomware infects your system and what steps you can take to stop the attack before it sets foot in the network. Security experts Allan Liska and Timothy Gallo explain how the success of these attacks has spawned not only several variants of ransomware, but also a litany of ever-changing ways they’re delivered to targets. You’ll learn pragmatic methods for responding quickly to a ransomware attack, as well as how to protect yourself from becoming infected in the first place. Learn how ransomware enters your system and encrypts your files Understand why ransomware use has grown, especially in recent years Examine the organizations behind ransomware and the victims they target Learn how wannabe hackers use Ransomware as a Service (RaaS) to launch campaigns Understand how ransom is paid—and the pros and cons of paying Use methods to protect your organization’s workstations and servers

Preventing Digital Extortion

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Author: Dhanya Thakkar

Publisher: Packt Publishing Ltd

ISBN: 1787125971

Category: Computers

Page: 360

View: 9822

Learn the art of preventing digital extortion and securing confidential data About This Book Get acquainted with multiple cyber extortion attacks and techniques to mitigate them Learn how DDOS, Crypto Virus, and other cyber extortion techniques can infect your computers, smartphones, servers, and cloud A concise, fast-paced guide that develops your skills in protecting confidential data by leveraging widely used tools Who This Book Is For This book targets IT security managers, IT security engineers, security analysts, and professionals who are eager to avoid digital extortion for themselves or their organizations. They may have heard of such attacks but are not aware of their various types, techniques, and business impact. What You Will Learn Delve into the various types, stages, and economics of digital extortion Understand the science behind different attacks Understand the gravity of and mechanics behind ransomware and prevent and mitigate data breaches and financial losses Use effective tools to defend against ransomware Analyze attacks, the money flow, and cyber insurance processes Learn the art of preventing digital extortion and securing confidential data Get an idea of the future of extortion tactics and how technological advances will affect their development In Detail More and more cyber threats keep emerging every day, affecting organizations across the board, targeting the entire spectrum of the Internet. Digital--or cyber--extortion so far has come across as the most serious of such threats as it seeks to profit from criminal activity, akin to blackmail. Such extortion has been rising exponentially in the digital age and has become a huge illegal money-making business, affecting users and organizations ranging from small businesses to large enterprises. This is an insightful study spelling out in detail the ways and means employed by cyber criminals in targeting various devices and the multiple dangers such malicious activity embodies. Here will be found an overview of methods employed to impact and infect computers, smartphones, servers, and the IoT for cyber extortion. Then, it will move on to specific subjects in more detail, covering attacks such as DDoS-based extortion, cryptoviruses, and ransomware. You will learn how to prevent such attacks and eliminate them if you are compromised. This book will help you become a pro at securing your data and preventing your organization from paying a hefty ransom. Style and approach This step-by-step guide will start with the fundamentals of digital or cyber extortion and the various techniques used by hackers to demand ransom from an organization. It also focuses on types of ransomware and how it can infect your computer, mobile, cloud, server, and IOT. This practical guide will also explain how you can eliminate such attacks by leveraging various open source/commercial tools.

Preventing Ransomware

Understand, prevent, and remediate ransomware attacks

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Author: Abhijit Mohanta,Kumaraguru Velmurugan,Mounir Hahad

Publisher: Packt Publishing Ltd

ISBN: 1788625137

Category: Computers

Page: 266

View: 8253

Your one-stop guide to know digital extortion and it's prevention. Key Features A complete guide to how ransomware works Build a security mechanism to prevent digital extortion. A practical approach to knowing about, and responding to, ransomware. Book Description Ransomware has turned out to be the most aggressive malware and has affected numerous organizations in the recent past. The current need is to have a defensive mechanism in place for workstations and servers under one organization. This book starts by explaining the basics of malware, specifically ransomware. The book provides some quick tips on malware analysis and how you can identify different kinds of malware. We will also take a look at different types of ransomware, and how it reaches your system, spreads in your organization, and hijacks your computer. We will then move on to how the ransom is paid and the negative effects of doing so. You will learn how to respond quickly to ransomware attacks and how to protect yourself. The book gives a brief overview of the internals of security software and Windows features that can be helpful in ransomware prevention for administrators. You will also look at practical use cases in each stage of the ransomware phenomenon. The book talks in detail about the latest ransomware attacks involving WannaCry, Petya, and BadRabbit. By the end of this book, you will have end-to-end knowledge of the trending malware in the tech industry at present. What you will learn Understand malware types and malware techniques with examples Obtain a quick malware analysis Understand ransomware techniques, their distribution, and their payment mechanism Case studies of famous ransomware attacks Discover detection technologies for complex malware and ransomware Configure security software to protect against ransomware Handle ransomware infections Who this book is for This book is targeted towards security administrator, security analysts, or any stakeholders in the security sector who want to learn about the most trending malware in the current market: ransomware.

DNS Security

Defending the Domain Name System

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Author: Allan Liska,Geoffrey Stowe

Publisher: Syngress

ISBN: 0128033398

Category: Computers

Page: 226

View: 409

DNS Security: Defending the Domain Name System provides tactics on how to protect a Domain Name System (DNS) framework by exploring common DNS vulnerabilities, studying different attack vectors, and providing necessary information for securing DNS infrastructure. The book is a timely reference as DNS is an integral part of the Internet that is involved in almost every attack against a network. The book focuses entirely on the security aspects of DNS, covering common attacks against DNS servers and the protocol itself, as well as ways to use DNS to turn the tables on the attackers and stop an incident before it even starts. Presents a multi-platform approach, covering Linux and Windows DNS security tips Demonstrates how to implement DNS Security tools, including numerous screen shots and configuration examples Provides a timely reference on DNS security, an integral part of the Internet Includes information of interest to those working in DNS: Securing Microsoft DNS and BIND servers, understanding buffer overflows and cache poisoning, DDoS Attacks, pen-testing DNS infrastructure, DNS firewalls, Response Policy Zones, and DNS Outsourcing, amongst other topics

NTP Security

A Quick-Start Guide

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Author: Allan Liska

Publisher: Apress

ISBN: 1484224124

Category: Computers

Page: 90

View: 1624

Learn the risks associated with Network Time Protocol (NTP) security and how to minimize those risks while deploying and managing the protocol. You will be able to reduce the disruption of communication between servers on the network and the risk that the entire network will be taken offline. NTP Security: A Quick-Start Guide provides an understanding of how NTP is critical to modern networks and how it can be exploited. You will understand how an attacker can wreak havoc on an insecure network and guidance is provided to help you manage your system and make it more secure. What You Will Learn: Understand the vulnerabilities, flaws, and risks associated with the Network Time protocol (NTP) Analyze NTP traffic and configure NTP on servers and workstations in the network in a more secure manner Use practical solutions to secure NTP and build a robust infrastructure, such as bringing more capability inside the network and creating a smaller attack surface Determine the alternatives to NTP, including how to synchronize network clocks in other ways Who This Book Is For: System administrators, network engineers, and security analysts

Ransomware

With Source Code

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Author: Noah.950,Maury.870

Publisher: Createspace Independent Publishing Platform

ISBN: 9781547254958

Category:

Page: 106

View: 7760

This simple book teaches you how to write a Ransomware. Hopefully the source code we have written in the book will get you started in the right direction. Ransomware is a type of worm that often limits a user from accessing his or her computer system, either by locking the computer system's screen or by encrypting or locking files unless some ransom is paid. Most often ransomware worms are categorized as crypto-ransomware, because they encrypt certain file types on the infected systems and forces the owner of the system to pay some ransom through an online payment portal to get the decrypt key.

Understanding Network Hacks

Attack and Defense with Python

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Author: Bastian Ballmann

Publisher: Springer

ISBN: 3662444372

Category: Computers

Page: 178

View: 9035

This book explains how to see one's own network through the eyes of an attacker, to understand their techniques and effectively protect against them. Through Python code samples the reader learns to code tools on subjects such as password sniffing, ARP poisoning, DNS spoofing, SQL injection, Google harvesting and Wifi hacking. Furthermore the reader will be introduced to defense methods such as intrusion detection and prevention systems and log file analysis by diving into code.

Handbook of Research on Information and Cyber Security in the Fourth Industrial Revolution

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Author: Fields, Ziska

Publisher: IGI Global

ISBN: 1522547649

Category: Computers

Page: 647

View: 6773

The prominence and growing dependency on information communication technologies in nearly every aspect of life has opened the door to threats in cyberspace. Criminal elements inside and outside organizations gain access to information that can cause financial and reputational damage. Criminals also target individuals daily with personal devices like smartphones and home security systems who are often unaware of the dangers and the privacy threats around them. The Handbook of Research on Information and Cyber Security in the Fourth Industrial Revolution is a critical scholarly resource that creates awareness of the severity of cyber information threats on personal, business, governmental, and societal levels. The book explores topics such as social engineering in information security, threats to cloud computing, and cybersecurity resilience during the time of the Fourth Industrial Revolution. As a source that builds on available literature and expertise in the field of information technology and security, this publication proves useful for academicians, educationalists, policy makers, government officials, students, researchers, and business leaders and managers.

Ransomware - Prevention and Recovery

How to Avoid Paying a Ransom

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Author: David C. Pettit

Publisher: Createspace Independent Publishing Platform

ISBN: 9781548276607

Category:

Page: 170

View: 761

Ransomware - Malware - WannaCry These pages are not just ransomware definitions or descriptions. Not just case studies of others' demises. Not just warnings and admonitions of what not to do. They are pages to give understanding and the justification for taking the action steps given so that you can prevent most any ransomware attack and, if not, recover from the attack fast and inexpensively without paying a ransom. WannaCry News - Ransomware Windows 7 Author David Pettit invites us to understand the progression and varieties of ransomware. To be informed of the things we may do to prevent and minimize an attack. To know that we are prepared. To go forth into the computing and Internet world without fear. To have confidence that we can recover with ease and thumb our noses at the criminals who would hold us up. Windows Ransomware - WannaCry Microsoft Patch Microsoft, Apple, and Linux systems are all under attack. Many technology pundits have been down on Microsoft as THE vulnerable platform with the implication that Apple and Linux platforms are not vulnerable. Ransomware criminals are not as picky as other malware creators may have been in the past. They are equal opportunity thieves. The material is useful for both the non-technical computer user and for information technology professionals. Users will find normal and easily understood words. Professional information technology workers will find an up to date list of ransomware, see that is has evolved over time, learn what can be done about it, have all the source references of the research presented, and be able to support users and clients better. Everyone will benefit from the focus on business continuity. At the end is helpful sample content for many company standards, policies, procedures, checklists, forms, and guidelines. Some of the most well-known ransomware: Spora, Cerber, Osiris, Goldeneye Petya, Wallet Dharma, TeslaCrypt, CryptXXX, CryptoWall, Locky, Ranscam, WannaCry

Cybersecurity

What Everyone Needs to Know

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Author: Peter W. Singer,Allan Friedman

Publisher: Oxford University Press

ISBN: 0199918112

Category: Business & Economics

Page: 306

View: 5918

An authoritative, single-volume introduction to cybersecurity addresses topics ranging from phishing and electrical-grid takedowns to cybercrime and online freedom, sharing illustrative anecdotes to explain how cyberspace security works and what everyday people can do to protect themselves. Simultaneous.

Head First Android Development

A Brain-Friendly Guide

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Author: Dawn Griffiths,David Griffiths

Publisher: "O'Reilly Media, Inc."

ISBN: 1449362141

Category: Computers

Page: 734

View: 4130

What will you learn from this book? If you have an idea for a killer Android app, this book will help you build your first working application in a jiffy. You’ll learn hands-on how to structure your app, design interfaces, create a database, make your app work on various smartphones and tablets, and much more. It’s like having an experienced Android developer sitting right next to you! All you need is some Java know-how to get started. Why does this book look so different? Based on the latest research in cognitive science and learning theory, Head First Android Development uses a visually rich format to engage your mind, rather than a text-heavy approach that puts you to sleep. Why waste your time struggling with new concepts? This multi-sensory learning experience is designed for the way your brain really works.

Cybersecurity for Hospitals and Healthcare Facilities

A Guide to Detection and Prevention

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Author: Luis Ayala

Publisher: Apress

ISBN: 1484221559

Category: Computers

Page: 129

View: 9595

Learn how to detect and prevent the hacking of medical equipment at hospitals and healthcare facilities. A cyber-physical attack on building equipment pales in comparison to the damage a determined hacker can do if he/she gains access to a medical-grade network as a medical-grade network controls the diagnostic, treatment, and life support equipment on which lives depend. News reports inform us how hackers strike hospitals with ransomware that prevents staff from accessing patient records or scheduling appointments. Unfortunately, medical equipment also can be hacked and shut down remotely as a form of extortion. Criminal hackers will not ask for a $500 payment to unlock an MRI, PET or CT scan, or X-ray machine—they will ask for much more. Litigation is bound to follow and the resulting punitive awards will drive up hospital insurance costs and healthcare costs in general. This will undoubtedly result in increased regulations for hospitals and higher costs for compliance. Unless hospitals and other healthcare facilities take the steps necessary to secure their medical-grade networks, they will be targeted for cyber-physical attack, possibly with life-threatening consequences. Cybersecurity for Hospitals and Healthcare Facilities is a wake-up call explaining what hackers can do, why hackers would target a hospital, the way hackers research a target, ways hackers can gain access to a medical-grade network (cyber-attack vectors), and ways hackers hope to monetize their cyber-attack. By understanding and detecting the threats, you can take action now—before your hospital becomes the next victim. What You Will Learn: Determine how vulnerable hospital and healthcare building equipment is to cyber-physical attack Identify possible ways hackers can hack hospital and healthcare facility equipment Recognize the cyber-attack vectors—or paths by which a hacker or cracker can gain access to a computer, a medical-grade network server, or expensive medical equipment in order to deliver a payload or malicious outcome Detect and prevent man-in-the-middle or denial-of-service cyber-attacks Find and prevent hacking of the hospital database and hospital web application Who This Book Is For: Hospital administrators, healthcare professionals, hospital & healthcare facility engineers and building managers, hospital & healthcare facility IT professionals, and HIPAA professionals

Building an Intelligence-Led Security Program

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Author: Allan Liska

Publisher: Syngress

ISBN: 0128023708

Category: Computers

Page: 200

View: 2223

As recently as five years ago, securing a network meant putting in a firewall, intrusion detection system, and installing antivirus software on the desktop. Unfortunately, attackers have grown more nimble and effective, meaning that traditional security programs are no longer effective. Today's effective cyber security programs take these best practices and overlay them with intelligence. Adding cyber threat intelligence can help security teams uncover events not detected by traditional security platforms and correlate seemingly disparate events across the network. Properly-implemented intelligence also makes the life of the security practitioner easier by helping him more effectively prioritize and respond to security incidents. The problem with current efforts is that many security practitioners don't know how to properly implement an intelligence-led program, or are afraid that it is out of their budget. Building an Intelligence-Led Security Program is the first book to show how to implement an intelligence-led program in your enterprise on any budget. It will show you how to implement a security information a security information and event management system, collect and analyze logs, and how to practice real cyber threat intelligence. You'll learn how to understand your network in-depth so that you can protect it in the best possible way. Provides a roadmap and direction on how to build an intelligence-led information security program to protect your company. Learn how to understand your network through logs and client monitoring, so you can effectively evaluate threat intelligence. Learn how to use popular tools such as BIND, SNORT, squid, STIX, TAXII, CyBox, and splunk to conduct network intelligence.

Phishing Dark Waters

The Offensive and Defensive Sides of Malicious Emails

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Author: Christopher Hadnagy,Michele Fincher

Publisher: John Wiley & Sons

ISBN: 1118958489

Category: Computers

Page: 192

View: 9260

An essential anti-phishing desk reference for anyone with an email address Phishing Dark Waters addresses the growing and continuing scourge of phishing emails, and provides actionable defensive techniques and tools to help you steer clear of malicious emails. Phishing is analyzed from the viewpoint of human decision-making and the impact of deliberate influence and manipulation on the recipient. With expert guidance, this book provides insight into the financial, corporate espionage, nation state, and identity theft goals of the attackers, and teaches you how to spot a spoofed e-mail or cloned website. Included are detailed examples of high profile breaches at Target, RSA, Coca Cola, and the AP, as well as an examination of sample scams including the Nigerian 419, financial themes, and post high-profile event attacks. Learn how to protect yourself and your organization using anti-phishing tools, and how to create your own phish to use as part of a security awareness program. Phishing is a social engineering technique through email that deceives users into taking an action that is not in their best interest, but usually with the goal of disclosing information or installing malware on the victim's computer. Phishing Dark Waters explains the phishing process and techniques, and the defenses available to keep scammers at bay. Learn what a phish is, and the deceptive ways they've been used Understand decision-making, and the sneaky ways phishers reel you in Recognize different types of phish, and know what to do when you catch one Use phishing as part of your security awareness program for heightened protection Attempts to deal with the growing number of phishing incidents include legislation, user training, public awareness, and technical security, but phishing still exploits the natural way humans respond to certain situations. Phishing Dark Waters is an indispensible guide to recognizing and blocking the phish, keeping you, your organization, and your finances safe.

Dragnet Nation

A Quest for Privacy, Security, and Freedom in a World of Relentless Surveillance

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Author: Julia Angwin

Publisher: Macmillan

ISBN: 0805098070

Category: Business & Economics

Page: 289

View: 9410

An investigative journalist offers a revealing look at the surveillance economy in America that captures what citizens actions online and off, putting individual freedoms at risk and discusses results from a number of experiments she conducted to try and protect herself.

Hacked Again

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Author: Scott N. Schober

Publisher: Hillcrest Publishing Group

ISBN: 0996902201

Category: Computers

Page: 202

View: 5796

Hacked Again details the ins and outs of cybersecurity expert and CEO of a top wireless security tech firm Scott Schober, as he struggles to understand: the motives and mayhem behind his being hacked. As a small business owner, family man and tech pundit, Scott finds himself leading a compromised life. By day, he runs a successful security company and reports on the latest cyber breaches in the hopes of offering solace and security tips to millions of viewers. But by night, Scott begins to realize his worst fears are only a hack away as he falls prey to an invisible enemy. When a mysterious hacker begins to steal thousands from his bank account, go through his trash and rake over his social media identity; Scott stands to lose everything he worked so hard for. But his precarious situation only fortifies Scott's position as a cybersecurity expert and also as a harbinger for the fragile security we all cherish in this digital life. Amidst the backdrop of major breaches such as Target and Sony, Scott shares tips and best practices for all consumers concerning email scams, password protection and social media overload: Most importantly, Scott shares his own story of being hacked repeatedly and bow he has come to realize that the only thing as important as his own cybersecurity is that of his readers and viewers. Part cautionary tale and part cyber self-help guide, Hacked Again probes deep into the dark web for truths and surfaces to offer best practices and share stories from an expert who has lived as both an enforcer and a victim in the world of cybersecurity. Book jacket.

Spam Nation

The Inside Story of Organized Cybercrime-from Global Epidemic to Your Front Door

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Author: Brian Krebs

Publisher: Sourcebooks, Inc.

ISBN: 1402295634

Category: Political Science

Page: 256

View: 9239

Now a New York Times bestseller! There is a Threat Lurking Online with the Power to Destroy Your Finances, Steal Your Personal Data, and Endanger Your Life. In Spam Nation, investigative journalist and cybersecurity expert Brian Krebs unmasks the criminal masterminds driving some of the biggest spam and hacker operations targeting Americans and their bank accounts. Tracing the rise, fall, and alarming resurrection of the digital mafia behind the two largest spam pharmacies-and countless viruses, phishing, and spyware attacks-he delivers the first definitive narrative of the global spam problem and its threat to consumers everywhere. Blending cutting-edge research, investigative reporting, and firsthand interviews, this terrifying true story reveals how we unwittingly invite these digital thieves into our lives every day. From unassuming computer programmers right next door to digital mobsters like "Cosma"-who unleashed a massive malware attack that has stolen thousands of Americans' logins and passwords-Krebs uncovers the shocking lengths to which these people will go to profit from our data and our wallets. Not only are hundreds of thousands of Americans exposing themselves to fraud and dangerously toxic products from rogue online pharmacies, but even those who never open junk messages are at risk. As Krebs notes, spammers can-and do-hack into accounts through these emails, harvest personal information like usernames and passwords, and sell them on the digital black market. The fallout from this global epidemic doesn't just cost consumers and companies billions, it costs lives too. Fast-paced and utterly gripping, Spam Nation ultimately proposes concrete solutions for protecting ourselves online and stemming this tidal wave of cybercrime-before it's too late. "Krebs's talent for exposing the weaknesses in online security has earned him respect in the IT business and loathing among cybercriminals... His track record of scoops...has helped him become the rare blogger who supports himself on the strength of his reputation for hard-nosed reporting." -Bloomberg Businessweek

C in a Nutshell

The Definitive Reference

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Author: Peter Prinz,Tony Crawford

Publisher: "O'Reilly Media, Inc."

ISBN: 1491924195

Category: Computers

Page: 824

View: 778

The new edition of this classic O’Reilly reference provides clear, detailed explanations of every feature in the C language and runtime library, including multithreading, type-generic macros, and library functions that are new in the 2011 C standard (C11). If you want to understand the effects of an unfamiliar function, and how the standard library requires it to behave, you’ll find it here, along with a typical example. Ideal for experienced C and C++ programmers, this book also includes popular tools in the GNU software collection. You’ll learn how to build C programs with GNU Make, compile executable programs from C source code, and test and debug your programs with the GNU debugger. In three sections, this authoritative book covers: C language concepts and language elements, with separate chapters on types, statements, pointers, memory management, I/O, and more The C standard library, including an overview of standard headers and a detailed function reference Basic C programming tools in the GNU software collection, with instructions on how use them with the Eclipse IDE