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A the Hacker
A The Hacker Madame Curie once said “En science, nous devons nous int´eresser aux choses, non aux personnes [In science, we should be interested in things, not in people].” Things, however, have since changed, and today we have to be interested not just in the facts of computer security and crime, but in the people who perpetrate these acts. Hence this discussion of hackers. Over the centuries, the term “hacker” has referred to various activities. We are familiar with usages such as “a carpenter hacking wood with an ax” and “a butcher hacking meat with a cleaver,” but it seems that the modern, computer-related form of this term originated in the many pranks and practi- cal jokes perpetrated by students at MIT in the 1960s. As an example of the many meanings assigned to this term, see [Schneier 04] which, among much other information, explains why Galileo was a hacker but Aristotle wasn’t. A hack is a person lacking talent or ability, as in a “hack writer.” Hack as a verb is used in contexts such as “hack the media,” “hack your brain,” and “hack your reputation.” Recently, it has also come to mean either a kludge, or the opposite of a kludge, as in a clever or elegant solution to a difficult problem. A hack also means a simple but often inelegant solution or technique. The following tentative definitions are quoted from the jargon file ([jargon 04], edited by Eric S. Raymond): 1. A person who enjoys exploring the details of programmable systems and how to stretch their capabilities, as opposed to most users, who prefer to learn only the minimum necessary. -
Rootkit- Rootkits.For.Dummies 2007.Pdf
01_917106 ffirs.qxp 12/21/06 12:04 AM Page i Rootkits FOR DUMmIES‰ 01_917106 ffirs.qxp 12/21/06 12:04 AM Page ii 01_917106 ffirs.qxp 12/21/06 12:04 AM Page iii Rootkits FOR DUMmIES‰ by Larry Stevenson and Nancy Altholz 01_917106 ffirs.qxp 12/21/06 12:04 AM Page iv Rootkits For Dummies® Published by Wiley Publishing, Inc. 111 River Street Hoboken, NJ 07030-5774 www.wiley.com Copyright © 2007 by Wiley Publishing, Inc., Indianapolis, Indiana Published by Wiley Publishing, Inc., Indianapolis, Indiana Published simultaneously in Canada No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permit- ted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8600. Requests to the Publisher for permission should be addressed to the Legal Department, Wiley Publishing, Inc., 10475 Crosspoint Blvd., Indianapolis, IN 46256, (317) 572-3447, fax (317) 572-4355, or online at http://www.wiley.com/go/permissions. Trademarks: Wiley, the Wiley Publishing logo, For Dummies, the Dummies Man logo, A Reference for the Rest of Us!, The Dummies Way, Dummies Daily, The Fun and Easy Way, Dummies.com, and related trade dress are trademarks or registered trademarks of John Wiley & Sons, Inc. and/or its affiliates in the United States and other countries, and may not be used without written permission. -
La Sécurité Informatique Edition Livres Pour Tous (
La sécurité informatique Edition Livres pour tous (www.livrespourtous.com) PDF générés en utilisant l’atelier en source ouvert « mwlib ». Voir http://code.pediapress.com/ pour plus d’informations. PDF generated at: Sat, 13 Jul 2013 18:26:11 UTC Contenus Articles 1-Principes généraux 1 Sécurité de l'information 1 Sécurité des systèmes d'information 2 Insécurité du système d'information 12 Politique de sécurité du système d'information 17 Vulnérabilité (informatique) 21 Identité numérique (Internet) 24 2-Attaque, fraude, analyse et cryptanalyse 31 2.1-Application 32 Exploit (informatique) 32 Dépassement de tampon 34 Rétroingénierie 40 Shellcode 44 2.2-Réseau 47 Attaque de l'homme du milieu 47 Attaque de Mitnick 50 Attaque par rebond 54 Balayage de port 55 Attaque par déni de service 57 Empoisonnement du cache DNS 66 Pharming 69 Prise d'empreinte de la pile TCP/IP 70 Usurpation d'adresse IP 71 Wardriving 73 2.3-Système 74 Écran bleu de la mort 74 Fork bomb 82 2.4-Mot de passe 85 Attaque par dictionnaire 85 Attaque par force brute 87 2.5-Site web 90 Cross-site scripting 90 Défacement 93 2.6-Spam/Fishing 95 Bombardement Google 95 Fraude 4-1-9 99 Hameçonnage 102 2.7-Cloud Computing 106 Sécurité du cloud 106 3-Logiciel malveillant 114 Logiciel malveillant 114 Virus informatique 120 Ver informatique 125 Cheval de Troie (informatique) 129 Hacktool 131 Logiciel espion 132 Rootkit 134 Porte dérobée 145 Composeur (logiciel) 149 Charge utile 150 Fichier de test Eicar 151 Virus de boot 152 4-Concepts et mécanismes de sécurité 153 Authentification forte -
1.Computer Virus Reported (1) Summary for This Quarter
Attachment 1 1.Computer Virus Reported (1) Summary for this Quarter The number of the cases reported for viruses*1 in the first quarter of 2013 decreased from that of the fourth quarter of 2012 (See Figure 1-1). As for the number of the viruses detected*2 in the first quarter of 2013, W32/Mydoom accounted for three-fourths of the total (See Figure 1-2). Compared to the fourth quarter of 2012, however, both W32/Mydoom and W32/Netsky showed a decreasing trend. When we looked into the cases reported for W32/Netsky, we found that in most of those cases, the virus code had been corrupted, for which the virus was unable to carry out its infection activity. So, it is unlikely that the number of cases involving this virus will increase significantly in the future As for W32/IRCbot, it has greatly decreased from the level of the fourth quarter of 2012. W32/IRCbot carries out infection activities by exploiting vulnerabilities within Windows or programs, and is often used as a foothold for carrying out "Targeted Attack". It is likely that that there has been a shift to attacks not using this virus. XM/Mailcab is a mass-mailing type virus that exploits mailer's address book and distributes copies of itself. By carelessly opening this type of email attachment, the user's computer is infected and if the number of such users increases, so will the number of the cases reported. As for the number of the malicious programs detected in the first quarter of 2013, Bancos, which steals IDs/Passwords for Internet banking, Backdoor, which sets up a back door on the target PC, and Webkit, which guides Internet users to a maliciously-crafted Website to infect with another virus, were detected in large numbers. -
Detecting Botnets Using File System Indicators
Detecting botnets using file system indicators Master's thesis University of Twente Author: Committee members: Peter Wagenaar Prof. Dr. Pieter H. Hartel Dr. Damiano Bolzoni Frank Bernaards LLM (NHTCU) December 12, 2012 Abstract Botnets, large groups of networked zombie computers under centralised control, are recognised as one of the major threats on the internet. There is a lot of research towards ways of detecting botnets, in particular towards detecting Command and Control servers. Most of the research is focused on trying to detect the commands that these servers send to the bots over the network. For this research, we have looked at botnets from a botmaster's perspective. First, we characterise several botnet enhancing techniques using three aspects: resilience, stealth and churn. We see that these enhancements are usually employed in the network communications between the C&C and the bots. This leads us to our second contribution: we propose a new botnet detection method based on the way C&C's are present on the file system. We define a set of file system based indicators and use them to search for C&C's in images of hard disks. We investigate how the aspects resilience, stealth and churn apply to each of the indicators and discuss countermeasures botmasters could take to evade detection. We validate our method by applying it to a test dataset of 94 disk images, 16 of which contain C&C installations, and show that low false positive and false negative ratio's can be achieved. Approaching the botnet detection problem from this angle is novel, which provides a basis for further research. -
System Center Endpoint Protection for Mac
System Center Endpoint Protection for Mac Installation Manual and User Guide Contents Context menu 19 System Center Endpoint Protection 3 System requirements 3 Advanced user 20 Import and export settings 20 Installation 4 Import settings 20 Typical installation 4 Export settings 20 Proxy server setup 20 Custom installation 4 Removable media blocking 20 Uninstallation 5 21 Beginners guide 6 Glossary Types of infiltrations 21 User interface 6 Viruses 21 Checking operation of the system 6 Worms 21 What to do if the program does not work properly 7 Trojan horses 21 Work with System Center Endpoint Adware 22 Spyware 22 Protection 8 Potentially unsafe applications 22 Antivirus and antispyware protection 8 Potentially unwanted applications 22 Real-time file system protection 8 Real-time Protection setup 8 Scan on (Event triggered scanning) 8 Advanced scan options 8 Exclusions from scanning 8 When to modify Real-time protection configuration 9 Checking Real-time protection 9 What to do if Real-time protection does not work 9 On-demand computer scan 10 Type of scan 10 Smart scan 10 Custom scan 11 Scan targets 11 Scan profiles 11 Engine parameters setup 12 Objects 12 Options 12 Cleaning 13 Extensions 13 Limits 13 Others 13 An infiltration is detected 14 Updating the program 14 Update setup 15 How to create update tasks 15 Upgrading to a new build 15 Scheduler 16 Purpose of scheduling tasks 16 Creating new tasks 16 Creating user-defined task 17 Quarantine 17 Quarantining files 17 Restoring from Quarantine 17 Log files 18 Log maintenance 18 Log filtering 18 User interface 18 Alerts and notifications 19 Alerts and notifications advanced setup 19 Privileges 19 System Center Endpoint Protection As the popularity of Unix-based operating systems increases, malware authors are developing more threats to target Mac users. -
Computer Viruses, in Order to Detect Them
Behaviour-based Virus Analysis and Detection PhD Thesis Sulaiman Amro Al amro This thesis is submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy Software Technology Research Laboratory Faculty of Technology De Montfort University May 2013 DEDICATION To my beloved parents This thesis is dedicated to my Father who has been my supportive, motivated, inspired guide throughout my life, and who has spent every minute of his life teaching and guiding me and my brothers and sisters how to live and be successful. To my Mother for her support and endless love, daily prayers, and for her encouragement and everything she has sacrificed for us. To my Sisters and Brothers for their support, prayers and encouragements throughout my entire life. To my beloved Family, My Wife for her support and patience throughout my PhD, and my little boy Amro who has changed my life and relieves my tiredness and stress every single day. I | P a g e ABSTRACT Every day, the growing number of viruses causes major damage to computer systems, which many antivirus products have been developed to protect. Regrettably, existing antivirus products do not provide a full solution to the problems associated with viruses. One of the main reasons for this is that these products typically use signature-based detection, so that the rapid growth in the number of viruses means that many signatures have to be added to their signature databases each day. These signatures then have to be stored in the computer system, where they consume increasing memory space. Moreover, the large database will also affect the speed of searching for signatures, and, hence, affect the performance of the system. -
2007 Threat Report | 2008 Threat and Technology Forecast Executive Summary
2007 Threat Report | 2008 Threat and Technology Forecast Executive Summary Last year, Trend Micro’s 2006 Annual Roundup As we highlight the threats that made rounds and 2007 Forecast (The Trend of Threats Today) in 2007, it will become clear that all of these predicted the full emergence of Web threats predictions have indeed materialized, and some as the prevailing security threat in 2007. Web in an interesting fashion. threats include a broad array of threats that The shifting threat landscape demands a move operate through the Internet, typically comprise away from the traditional concept of malicious more than one fi le component, spawn a large code. Digital threats today cover more ground number of variants, and target a relatively smaller than ever. They may come to a user through audience. This was predicted to continue the simply having a vulnerable PC, visiting trusted “high focus/low spread” themes seen by some Web sites that are silently compromised, clicking attacks in 2006. an innocent-looking link, or by belonging to a Trend Micro also predicted that the growth and network that is under attack by a Distributed expansion of botnets during 2007 would be Denial of Service attacker. mostly based on new methods, ingenious social In the following roundup, Trend Micro summarizes engineering, and the exploitation of software the threats, malware trends, and security vulnerabilities. The roundup also indicated highlights seen during 2007. Real-life victims of that crimeware would continue to increase and these security threats include interest groups, become the prevailing threat motivation in 2007 individuals, organizations, and on some occasions and onwards. -
What Are Kernel-Mode Rootkits?
www.it-ebooks.info Hacking Exposed™ Malware & Rootkits Reviews “Accessible but not dumbed-down, this latest addition to the Hacking Exposed series is a stellar example of why this series remains one of the best-selling security franchises out there. System administrators and Average Joe computer users alike need to come to grips with the sophistication and stealth of modern malware, and this book calmly and clearly explains the threat.” —Brian Krebs, Reporter for The Washington Post and author of the Security Fix Blog “A harrowing guide to where the bad guys hide, and how you can find them.” —Dan Kaminsky, Director of Penetration Testing, IOActive, Inc. “The authors tackle malware, a deep and diverse issue in computer security, with common terms and relevant examples. Malware is a cold deadly tool in hacking; the authors address it openly, showing its capabilities with direct technical insight. The result is a good read that moves quickly, filling in the gaps even for the knowledgeable reader.” —Christopher Jordan, VP, Threat Intelligence, McAfee; Principal Investigator to DHS Botnet Research “Remember the end-of-semester review sessions where the instructor would go over everything from the whole term in just enough detail so you would understand all the key points, but also leave you with enough references to dig deeper where you wanted? Hacking Exposed Malware & Rootkits resembles this! A top-notch reference for novices and security professionals alike, this book provides just enough detail to explain the topics being presented, but not too much to dissuade those new to security.” —LTC Ron Dodge, U.S. -
CONTENTS in THIS ISSUE Fighting Malware and Spam
JANUARY 2008 Fighting malware and spam CONTENTS IN THIS ISSUE 2 COMMENT MONITORING THE NET A richer, but more dangerous web Despite the best efforts of the IT security industry it looks like the 3 NEWS malicious bot is here to Guidelines issued for UK hacker tool ban stay. Andrei Gherman looks at how botnet monitoring can provide information about bots as 3 VIRUS PREVALENCE TABLE well as helping to keep the threat under control. page 4 FEATURES HIJACKED IN A FLASH 4 Botnet monitoring As malicious web ads become increasingly 9 Rule-driven malware identification and classification common, Dennis Elser and Micha Pekrul take a close look at a Flash advertising banner belonging 12 Inside rogue Flash ads to the SWF.AdHijack family. page 12 16 CALL FOR PAPERS OUTPOST IN THE SPOTLIGHT VB2008 John Hawes discovers how firewall expert Agnitum has fared after having added malware detection to 17 PRODUCT REVIEW its Outpost Security Suite. Agnitum Outpost Security Suite Pro 2008 page 17 22 END NOTES & NEWS This month: anti-spam news and events, and Martin Overton looks at how malware authors have started to borrow techniques from phishers. ISSN 1749-7027 COMMENT “The accessing of The accessing of media-rich, collaborative sites by employees is already cause for concern in terms of both media-rich, employee productivity and security. Businesses and collaborative sites individuals are creating and uploading content to the web with little or no control over what is hosted, and this by employees is trend is set to increase. As businesses capitalize on RIAs already cause for by expanding their online services, more and more data will be stored online – and as the explosion in social concern.” networking has already shown us, the more opportunities Mark Murtagh, Websense the Internet gives us, the more points of access it gives criminals. -
Extraction of Statistically Significant Malware Behaviors
Extraction of Statistically Significant Malware Behaviors ∗ Sirinda Palahan Domagoj Babic´ Penn State University Google, Inc. [email protected] [email protected] Swarat Chaudhuri Daniel Kifer Rice University Penn State University [email protected] [email protected] ABSTRACT data and they do not provide scores that indicate the statis- Traditionally, analysis of malicious software is only a semi- tical confidence that a (possibly new) behavior is malicious. automated process, often requiring a skilled human analyst. In this paper, we propose a new method for identifying As new malware appears at an increasingly alarming rate | malicious behavior and assigning it a p-value (a measure of now over 100 thousand new variants each day | there is a statistical confidence that the behavior is indeed malicious). need for automated techniques for identifying suspicious be- It requires a training set consisting of malware and good- havior in programs. In this paper, we propose a method for ware executables. Using dynamic program analysis tools, extracting statistically significant malicious behaviors from we represent each executable as a graph. We then train a a system call dependency graph (obtained by running a bi- linear classifier to discriminate between malware and good- nary executable in a sandbox). Our approach is based on a ware; the parameters of this classifier are crucial for our new method for measuring the statistical significance of sub- statistical test. To evaluate a new executable, we can use graphs. Given a training set of graphs from two classes (e.g., the linear classifier to categorize it as goodware or malware. goodware and malware system call dependency graphs), our To then identify its suspicious behaviors, we again represent method can assign p-values to subgraphs of new graph in- it as a graph and use a subgraph mining algorithm to ex- stances even if those subgraphs have not appeared before in tract a candidate subgraph. -
MARK RUSSINOVICH Chief Technology Officer Microsoft Azure
MARK RUSSINOVICH is the CTO of Microsoft Azure. He was a co-founder of software producers Winternals before it was acquired by Microsoft in 2006. Russinovich earned his B.S. in computer engineering from Carnegie Mellon Uni- versity in 1989 and M.S. in computer cngineering from Rensselaer Polytechnic Institute. He later returned to CMU, and received a Ph.D. in computer engineer-ing on Application-transparent fault manage- ment in 1994, under the supervision of Zary Segall. From 1994 through early 1996 Russinovich was a research associate with the University of Oregon's computer science department and then joined NuMega Technologies as a developer, working on performance monitoring software for Window NT. In 1996, he and Bryce Cogswell cofounded Winternals Software, where Russinovich served as Chief Software Architect, and the web site sysinternals.com, where he wrote and published dozens of popular Windows administration and diagnostic utilities in- cludeing Autoruns, Filemon, Regmon, Process Explorer, TCPView, and RootkitRevealer among many others. In 1997 he worked as a consulting associate at OSR Open Systems Resources, Inc. and then joined IBM's Thomas J. Watson Research Center as a research staff member, re- searching operating system support for Web server acceleration and serving as an oper- ating systems expert. Russinovich joined Microsoft in 2006, when it acquired Most existing blockchain protocols fail to meet several key enterprise requirements, including Winternals Software. con-fidentiality, acceptable transaction throughput and latency, computational efficiency (e.g. In his role as an author, he is a regular energy costs for proof-of-work consensus), and effective governance.