Network Security With Netflow and Ipfix

Big Data Analytics for Information Security

Author: Omar Santos

Publisher: Cisco Systems

ISBN: 9781587144387

Category: Computers

Page: 265

View: 1586

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Today, security demands unprecedented visibility into your network. Cisco NetFlow can help companies of all sizes achieve and maintain this visibility. Network Security with NetFlow and IPFIX: Big Data Analytics for Information Security is the definitive guide to using NetFlow to strengthen network security. Omar Santos, Technical Leader of Cisco's Product Security Incident Response Team (PSIRT), covers all you need to successfully capture network telemetry with NetFlow and use it to: See what is actually happening across your entire network Regain control of your network Quickly identify compromised end points and network infrastructure devices Monitor network usage by employees, contractors, or partners Detect firewall misconfigurations and inappropriate access to corporate resources Act effectively during incident response and network forensics Utilize big data analytics to improve IT security Writing for organizations of all sizes, Santos shows how to work with each current version of NetFlow, and several leading open source analyzers. He addresses NetFlow services, versions, and features; shows how to perform Big Data security analyses of Cisco NetFlow data; and explains how NetFlow integrates into broader Cisco Cyber Threat Defense (CTD) solutions. Each chapter presents multiple sample configurations, accompanied by detailed design analyses and realistic case studies.

Applied Network Security Monitoring

Collection, Detection, and Analysis

Author: Chris Sanders,Jason Smith

Publisher: Elsevier

ISBN: 0124172164

Category: Computers

Page: 496

View: 464

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Applied Network Security Monitoring is the essential guide to becoming an NSM analyst from the ground up. This book takes a fundamental approach to NSM, complete with dozens of real-world examples that teach you the key concepts of NSM. Network security monitoring is based on the principle that prevention eventually fails. In the current threat landscape, no matter how much you try, motivated attackers will eventually find their way into your network. At that point, it is your ability to detect and respond to that intrusion that can be the difference between a small incident and a major disaster. The book follows the three stages of the NSM cycle: collection, detection, and analysis. As you progress through each section, you will have access to insights from seasoned NSM professionals while being introduced to relevant, practical scenarios complete with sample data. If you've never performed NSM analysis, Applied Network Security Monitoring will give you an adequate grasp on the core concepts needed to become an effective analyst. If you are already a practicing analyst, this book will allow you to grow your analytic technique to make you more effective at your job. Discusses the proper methods for data collection, and teaches you how to become a skilled NSM analyst Provides thorough hands-on coverage of Snort, Suricata, Bro-IDS, SiLK, and Argus Loaded with practical examples containing real PCAP files you can replay, and uses Security Onion for all its lab examples Companion website includes up-to-date blogs from the authors about the latest developments in NSM

Network Security Through Data Analysis

Building Situational Awareness

Author: Michael Collins

Publisher: "O'Reilly Media, Inc."

ISBN: 1449357881

Category: Computers

Page: 348

View: 6524

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Traditional intrusion detection and logfile analysis are no longer enough to protect today’s complex networks. In this practical guide, security researcher Michael Collins shows you several techniques and tools for collecting and analyzing network traffic datasets. You’ll understand how your network is used, and what actions are necessary to protect and improve it. Divided into three sections, this book examines the process of collecting and organizing data, various tools for analysis, and several different analytic scenarios and techniques. It’s ideal for network administrators and operational security analysts familiar with scripting. Explore network, host, and service sensors for capturing security data Store data traffic with relational databases, graph databases, Redis, and Hadoop Use SiLK, the R language, and other tools for analysis and visualization Detect unusual phenomena through Exploratory Data Analysis (EDA) Identify significant structures in networks with graph analysis Determine the traffic that’s crossing service ports in a network Examine traffic volume and behavior to spot DDoS and database raids Get a step-by-step process for network mapping and inventory

Hacking mit Security Onion

Sicherheit im Netzwerk überwachen: Daten erfassen und sammeln, analysieren und Angriffe rechtzeitig erkennen

Author: Chris Sanders,Jason Smith

Publisher: Franzis Verlag

ISBN: 3645204962

Category: Computers

Page: 560

View: 3588

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Sie können noch so viel in Hardware, Software und Abwehrmechanismen investieren, absolute Sicherheit für Ihre IT-Infrastruktur wird es nicht geben. Wenn Hacker sich wirklich anstrengen, werden sie auch in Ihr System gelangen. Sollte das geschehen, müssen Sie sowohl technisch als auch organisatorisch so aufgestellt sein, dass Sie die Gegenwart eines Hackers erkennen und darauf reagieren können. Sie müssen in der Lage sein, einen Zwischenfall zu deklarieren und die Angreifer aus Ihrem Netzwerk zu vertreiben, bevor sie erheblichen Schaden anrichten. Das ist Network Security Monitoring (NSM). Lernen Sie von dem leitenden Sicherheitsanalytiker Sanders die Feinheiten des Network Security Monitoring kennen. Konzepte verstehen und Network Security Monitoring mit Open-Source-Tools durchführen: Lernen Sie die drei NSM-Phasen kennen, um diese in der Praxis anzuwenden. Die praktische Umsetzung der NSM erfolgt mit vielen Open-Source-Werkzeugen wie z. B. Bro, Daemonlogger, Dumpcap, Justniffer, Honeyd, Httpry, Netsniff-NG, Sguil, SiLK, Snorby Snort, Squert, Suricata, TShark und Wireshark. Anhand von ausführlichen Beispielen lernen Sie, die Tools effizient in Ihrem Netzwerk einzusetzen.

The Tao of Network Security Monitoring

Beyond Intrusion Detection

Author: Richard Bejtlich

Publisher: Pearson Education

ISBN: 9780132702041

Category: Computers

Page: 832

View: 2954

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"The book you are about to read will arm you with the knowledge you need to defend your network from attackers—both the obvious and the not so obvious.... If you are new to network security, don't put this book back on the shelf! This is a great book for beginners and I wish I had access to it many years ago. If you've learned the basics of TCP/IP protocols and run an open source or commercial IDS, you may be asking 'What's next?' If so, this book is for you." —Ron Gula, founder and CTO, Tenable Network Security, from the Foreword "Richard Bejtlich has a good perspective on Internet security—one that is orderly and practical at the same time. He keeps readers grounded and addresses the fundamentals in an accessible way." —Marcus Ranum, TruSecure "This book is not about security or network monitoring: It's about both, and in reality these are two aspects of the same problem. You can easily find people who are security experts or network monitors, but this book explains how to master both topics." —Luca Deri, ntop.org "This book will enable security professionals of all skill sets to improve their understanding of what it takes to set up, maintain, and utilize a successful network intrusion detection strategy." —Kirby Kuehl, Cisco Systems Every network can be compromised. There are too many systems, offering too many services, running too many flawed applications. No amount of careful coding, patch management, or access control can keep out every attacker. If prevention eventually fails, how do you prepare for the intrusions that will eventually happen? Network security monitoring (NSM) equips security staff to deal with the inevitable consequences of too few resources and too many responsibilities. NSM collects the data needed to generate better assessment, detection, and response processes—resulting in decreased impact from unauthorized activities. In The Tao of Network Security Monitoring , Richard Bejtlich explores the products, people, and processes that implement the NSM model. By focusing on case studies and the application of open source tools, he helps you gain hands-on knowledge of how to better defend networks and how to mitigate damage from security incidents. Inside, you will find in-depth information on the following areas. The NSM operational framework and deployment considerations. How to use a variety of open-source tools—including Sguil, Argus, and Ethereal—to mine network traffic for full content, session, statistical, and alert data. Best practices for conducting emergency NSM in an incident response scenario, evaluating monitoring vendors, and deploying an NSM architecture. Developing and applying knowledge of weapons, tactics, telecommunications, system administration, scripting, and programming for NSM. The best tools for generating arbitrary packets, exploiting flaws, manipulating traffic, and conducting reconnaissance. Whether you are new to network intrusion detection and incident response, or a computer-security veteran, this book will enable you to quickly develop and apply the skills needed to detect, prevent, and respond to new and emerging threats.

End-to-End Network Security

Defense-in-Depth

Author: Omar Santos

Publisher: Pearson Education

ISBN: 0132796805

Category: Computers

Page: 480

View: 2586

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End-to-End Network Security Defense-in-Depth Best practices for assessing and improving network defenses and responding to security incidents Omar Santos Information security practices have evolved from Internet perimeter protection to an in-depth defense model in which multiple countermeasures are layered throughout the infrastructure to address vulnerabilities and attacks. This is necessary due to increased attack frequency, diverse attack sophistication, and the rapid nature of attack velocity—all blurring the boundaries between the network and perimeter. End-to-End Network Security is designed to counter the new generation of complex threats. Adopting this robust security strategy defends against highly sophisticated attacks that can occur at multiple locations in your network. The ultimate goal is to deploy a set of security capabilities that together create an intelligent, self-defending network that identifies attacks as they occur, generates alerts as appropriate, and then automatically responds. End-to-End Network Security provides you with a comprehensive look at the mechanisms to counter threats to each part of your network. The book starts with a review of network security technologies then covers the six-step methodology for incident response and best practices from proactive security frameworks. Later chapters cover wireless network security, IP telephony security, data center security, and IPv6 security. Finally, several case studies representing small, medium, and large enterprises provide detailed example configurations and implementation strategies of best practices learned in earlier chapters. Adopting the techniques and strategies outlined in this book enables you to prevent day-zero attacks, improve your overall security posture, build strong policies, and deploy intelligent, self-defending networks. “Within these pages, you will find many practical tools, both process related and technology related, that you can draw on to improve your risk mitigation strategies.” —Bruce Murphy, Vice President, World Wide Security Practices, Cisco Omar Santos is a senior network security engineer at Cisco®. Omar has designed, implemented, and supported numerous secure networks for Fortune 500 companies and the U.S. government. Prior to his current role, he was a technical leader within the World Wide Security Practice and the Cisco Technical Assistance Center (TAC), where he taught, led, and mentored many engineers within both organizations. Guard your network with firewalls, VPNs, and intrusion prevention systems Control network access with AAA Enforce security policies with Cisco Network Admission Control (NAC) Learn how to perform risk and threat analysis Harden your network infrastructure, security policies, and procedures against security threats Identify and classify security threats Trace back attacks to their source Learn how to best react to security incidents Maintain visibility and control over your network with the SAVE framework Apply Defense-in-Depth principles to wireless networks, IP telephony networks, data centers, and IPv6 networks This security book is part of the Cisco Press® Networking Technology Series. Security titles from Cisco Press help networking professionals secure critical data and resources, prevent and mitigate network attacks, and build end-to-end self-defending networks. Category: Networking: Security Covers: Network security and incident response

Cybersecurity for Industrial Control Systems

SCADA, DCS, PLC, HMI, and SIS

Author: Tyson Macaulay,Bryan L. Singer

Publisher: CRC Press

ISBN: 1439801967

Category: Business & Economics

Page: 203

View: 1863

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As industrial control systems (ICS), including SCADA, DCS, and other process control networks, become Internet-facing, they expose crucial services to attack. Threats like Duqu, a sophisticated worm found in the wild that appeared to share portions of its code with the Stuxnet worm, emerge with increasing frequency. Explaining how to develop and implement an effective cybersecurity program for ICS, Cybersecurity for Industrial Control Systems: SCADA, DCS, PLC, HMI, and SIS provides you with the tools to ensure network security without sacrificing the efficiency and functionality of ICS. Highlighting the key issues that need to be addressed, the book begins with a thorough introduction to ICS. It discusses business, cost, competitive, and regulatory drivers and the conflicting priorities of convergence. Next, it explains why security requirements differ from IT to ICS. It differentiates when standard IT security solutions can be used and where SCADA-specific practices are required. The book examines the plethora of potential threats to ICS, including hi-jacking malware, botnets, spam engines, and porn dialers. It outlines the range of vulnerabilities inherent in the ICS quest for efficiency and functionality that necessitates risk behavior such as remote access and control of critical equipment. Reviewing risk assessment techniques and the evolving risk assessment process, the text concludes by examining what is on the horizon for ICS security, including IPv6, ICSv6 test lab designs, and IPv6 and ICS sensors.

Security and Privacy in Communication Networks

8th International ICST Conference, SecureComm 2012, Padua, Italy, September 3-5, 2012. Revised Selected Papers

Author: Angelos D. Keromytis,Roberto Di Pietro

Publisher: Springer

ISBN: 3642368832

Category: Computers

Page: 369

View: 1326

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This volume presents the refereed proceedings of the 8th International ICST Conference on Security and Privacy in Communication Networks, SecureComm 2012, held in Padua, Italy, in September 2012. The 21 revised papers included in the volume were carefully reviewed and selected from 73 submissions. Topics covered include crypto and electronic money; wireless security; web security; intrusion detection and monitoring; and anonymity and privacy.

Cybersecurity Best Practices

Lösungen zur Erhöhung der Cyberresilienz für Unternehmen und Behörden

Author: Michael Bartsch,Stefanie Frey

Publisher: Springer Vieweg

ISBN: 9783658216542

Category: Computers

Page: 469

View: 6757

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Das Thema Cybersecurity ist so aktuell wie nie, denn im Cyberspace lassen sich nur schwer Grenzen in Bezug auf den Zugang zu Informationen, Daten und Redefreiheit setzen. Kriminelle nutzen die Lücken oft zu ihrem Vorteil aus. Die Vielzahl der IT-Systeme, ihre unterschiedlichen Nutzungsarten und ihre Innovations- und Lebenszyklen haben zu hohen Sicherheitsrisiken für Unternehmen und staatliche Einrichtungen geführt. Diese Risiken werden sich auch langfristig nicht so einfach aus der Welt schaffen lassen. Daher müssen Institutionen Strategien und Lösungen zu ihrem Selbstschutz entwickeln. Dieses Buch beschreibt Lösungsansätze und Best Practices aus den unterschiedlichsten Bereichen, die nachweislich zu einer höheren Resilienz gegenüber Cyberangriffen führen. Weltweit renommierte IT-Sicherheitsexperten berichten in 40 Beiträgen, wie sich staatliche Institutionen, unter anderem das Militär (Cyber Defence), Behörden, internationale Organisationen und Unternehmen besser gegen Cyberangriffe schützen und nachhaltige Schutzstrategien entwickeln können. Die Autoren widmen sich den Gründen und Zielen, die ihren jeweiligen Strategien zugrunde liegen, sie berichten, wie Unternehmen auf konkrete Cyberattacken reagiert haben und wie einzelne staatliche Institutionen angesichts nationaler Cyberstrategien agieren. In weiteren Kapiteln zeigen Wissenschaftler auf, was bei der Abwehr von Cyber-Attacken bereits heute möglich ist, welche Entwicklungen in Arbeit sind und wie diese in Zukunft eingesetzt werden können, um die Cyber-Sicherheit zu erhöhen. Im letzten Kapitel berichten Hersteller, Anwenderunternehmen und Dienstleister welche Best Practices sie in ihren Unternehmen eingeführt haben und wie andere Unternehmen ihrem Beispiel folgen können. Das Buch richtet sich an IT-Verantwortliche und -Sicherheitsbeauftragte in Unternehmen und anderen Organisationen, aber auch an Studierende in den verschiedenen IT-Studiengängen.

Control

Author: Daniel Suarez

Publisher: Rowohlt Verlag GmbH

ISBN: 3644525315

Category: Fiction

Page: 496

View: 9685

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«Mit diesem Buch wird der Autor vermutlich die Lücke ausfüllen, die von Tom Clancy und Michael Crichton hinterlassen wurde.» (Wall Street Journal) 1969 eroberte der Mensch den Mond. Und was ist die größte Errungenschaft unseres Jahrhunderts? Facebook? Was wurde aus den Visionen der Vergangenheit? Warum gibt es keine großen Erfindungen mehr? – Als dem Physiker Jon Grady die Aufhebung der Schwerkraft gelingt, hofft er auf den Nobelpreis. Doch statt Gratulanten kommen Terroristen, Grady stirbt. Das melden zumindest die Medien. Tatsächlich erwacht der Wissenschaftler in Gefangenschaft: Das hochgeheime «Bureau of Technology Control» entführt seit Jahrzehnten die brillantesten Wissenschaftler. Zum Schutz der Menschheit, angeblich, denn für Kernfusion und andere Erfindungen sei der Homo sapiens noch nicht weit genug. Für die Gefangenen gibt es nur eine Wahl: entweder Kooperation - oder eine türlose Zelle im Fels, tief unter der Erde. Doch die neuen Herren der Welt haben die Rechnung ohne Grady gemacht. «Ein würdiger Nachfolger für Michael Crichton.» (Publishers Weekly Starred Review) «Eine großartige Tour de Force.» (Booklist Starred Review) Der neue visionäre Thriller vom «Jules Verne des digitalen Zeitalters». (Frank Schirrmacher)

Against All Enemies

Der Insiderbericht über Amerikas Krieg gegen den Terror

Author: Richard A. Clarke

Publisher: Hoffmann und Campe

ISBN: 3455850790

Category: History

Page: 383

View: 4936

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"Fast 500.000 verkaufte Exemplare in drei Tagen - die Enthüllung von Bushs ehemaligem Terrorberater Richard Clarke schlägt alle Rekorde" (SPIEGEL ONLINE) Binnen weniger Tage wurde "Against All Enemies" zu einem hochbrisanten Politikum, über das die Medien weltweit berichteten. Was macht die Schlagkraft dieses Buches aus? "Die Bush-Administration hat die Gelegenheit verpasst, Al Qaida zu zerschlagen", schreibt Richard A. Clarke. Sie habe alle Warnungen vor Al Qaida ignoriert, in einem unnötigen Krieg gegen Irak wertvolle Zeit verloren und dem Terrorismus Gelegenheit gegeben, sich neu zu organisieren. Wie kein anderer ist Clarke berechtigt, ein solches Urteil zu fällen. Zwei Jahrzehnte seines Lebens hat er dem Kampf gegen den Terrorismus gewidmet. Er war unter Clinton und Bush Cheforganisator der amerikanischen Anti-Terror-Politik und leitete in den entscheidenden Stunden nach den Anschlägenvom 11. September den Krisenstab im Weißen Haus. Sein Bericht, der sich auf die Entwicklungen vom ersten Golfkrieg bis zu "Bushs Vietnam" im Irak konzentriert, liest sich wie ein autobiografischer Thriller.

Network Management Fundamentals

Author: Alexander Clemm

Publisher: Cisco Systems

ISBN: N.A

Category: Computers

Page: 510

View: 8955

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This book provides you with an accessible overview of network management covering management not just of networks themselves but also of services running over those networks. It also explains the different technologies that are used in network management and how they relate to each other.--[book cover].

Network Forensics

Tracking Hackers through Cyberspace

Author: Sherri Davidoff,Jonathan Ham

Publisher: Prentice Hall

ISBN: 0132565102

Category: Computers

Page: 576

View: 6658

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“This is a must-have work for anybody in information security, digital forensics, or involved with incident handling. As we move away from traditional disk-based analysis into the interconnectivity of the cloud, Sherri and Jonathan have created a framework and roadmap that will act as a seminal work in this developing field.” – Dr. Craig S. Wright (GSE), Asia Pacific Director at Global Institute for Cyber Security + Research. “It’s like a symphony meeting an encyclopedia meeting a spy novel.” –Michael Ford, Corero Network Security On the Internet, every action leaves a mark–in routers, firewalls, web proxies, and within network traffic itself. When a hacker breaks into a bank, or an insider smuggles secrets to a competitor, evidence of the crime is always left behind. Learn to recognize hackers’ tracks and uncover network-based evidence in Network Forensics: Tracking Hackers through Cyberspace. Carve suspicious email attachments from packet captures. Use flow records to track an intruder as he pivots through the network. Analyze a real-world wireless encryption-cracking attack (and then crack the key yourself). Reconstruct a suspect’s web surfing history–and cached web pages, too–from a web proxy. Uncover DNS-tunneled traffic. Dissect the Operation Aurora exploit, caught on the wire. Throughout the text, step-by-step case studies guide you through the analysis of network-based evidence. You can download the evidence files from the authors’ web site (lmgsecurity.com), and follow along to gain hands-on experience. Hackers leave footprints all across the Internet. Can you find their tracks and solve the case? Pick up Network Forensics and find out.