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9 Steps to Protect Against Ransomware
9 Steps to ProtectUsers/Devices Against Ransomware Home Security Dashboard Security Dashboard IT Support Analyst Task Overview Devices Vulnerability Scan With Vulnerabilities In Last 30 Days Security Manager Critical Security Dashboard 40 Devices 95 Not Scanned Self Service Important/High 85 Estimated Not Scanned 90 Devices 31 Scanned So ware Catalog Moderate/Medium 15% Launchpad 90 Devices Asset Manager NA 140 Devices So ware Asset Hardware Asset Inventory Scan Most detected Critical/High Vulnerables In Last 30 Days In Last 30 Days Sign Out MS15-080_MSU 70 Devices 169 Not Scanned 42 Scanned MS15-084_MSU White Paper 70 Devices 20% MS15-049_INTL 50 Devices MS15-049_INTL 50 Devices Contents Introduction . 1 Prevention . .. 2 1. Patch the critical operating systems and applications .................................2 2. Ensure that antivirus software is up-to-date and that regular scans are scheduled .......3 3. Manage the use of privileged accounts ..............................................4 4. Implement access control that focuses on the data ...................................4 5. Define, implement, and enforce software rules .......................................6 6. Disable macros from Microsoft Office files ...........................................6 Other considerations . 6 7. Implement applications whitelisting ................................................7 8. Restrict users to virtualized or containerized environments ............................7 9. Back up critical files frequently .....................................................7 Ransomware incidents are on the rise . Fight back! . 8 References . 8 This document contains the confidential information and/or proprietary property of Ivanti Software, Inc. and its affiliates (referred to collectively as “Ivanti”), and may not be disclosed or copied without prior written consent of Ivanti. Ivanti retains the right to make changes to this document or related product specifications and descriptions, at any time, without notice. -
Top 10 Cyber Crime Prevention Tips
Top 10 Cyber Crime Prevention Tips 1. Use Strong Passwords Use different user ID / password combinations for different accounts and avoid writing them down. Make the passwords more complicated by combining letters, numbers, special characters (minimum 10 characters in total) and change them on a regular basis. 2. Secure your computer o Activate your firewall Firewalls are the first line of cyber defense; they block connections to unknown or bogus sites and will keep out some types of viruses and hackers. o Use anti-virus/malware software Prevent viruses from infecting your computer by installing and regularly updating anti-virus software. o Block spyware attacks Prevent spyware from infiltrating your computer by installing and updating anti- spyware software. 3. Be Social-Media Savvy Make sure your social networking profiles (e.g. Facebook, Twitter, Youtube, MSN, etc.) are set to private. Check your security settings. Be careful what information you post online. Once it is on the Internet, it is there forever! 4. Secure your Mobile Devices Be aware that your mobile device is vulnerable to viruses and hackers. Download applications from trusted sources. 5. Install the latest operating system updates Keep your applications and operating system (e.g. Windows, Mac, Linux) current with the latest system updates. Turn on automatic updates to prevent potential attacks on older software. 6. Protect your Data Use encryption for your most sensitive files such as tax returns or financial records, make regular back-ups of all your important data, and store it in another location. 7. Secure your wireless network Wi-Fi (wireless) networks at home are vulnerable to intrusion if they are not properly secured. -
Trojans and Malware on the Internet an Update
Attitude Adjustment: Trojans and Malware on the Internet An Update Sarah Gordon and David Chess IBM Thomas J. Watson Research Center Yorktown Heights, NY Abstract This paper continues our examination of Trojan horses on the Internet; their prevalence, technical structure and impact. It explores the type and scope of threats encountered on the Internet - throughout history until today. It examines user attitudes and considers ways in which those attitudes can actively affect your organization’s vulnerability to Trojanizations of various types. It discusses the status of hostile active content on the Internet, including threats from Java and ActiveX, and re-examines the impact of these types of threats to Internet users in the real world. Observations related to the role of the antivirus industry in solving the problem are considered. Throughout the paper, technical and policy based strategies for minimizing the risk of damage from various types of Trojan horses on the Internet are presented This paper represents an update and summary of our research from Where There's Smoke There's Mirrors: The Truth About Trojan Horses on the Internet, presented at the Eighth International Virus Bulletin Conference in Munich Germany, October 1998, and Attitude Adjustment: Trojans and Malware on the Internet, presented at the European Institute for Computer Antivirus Research in Aalborg, Denmark, March 1999. Significant portions of those works are included here in original form. Descriptors: fidonet, internet, password stealing trojan, trojanized system, trojanized application, user behavior, java, activex, security policy, trojan horse, computer virus Attitude Adjustment: Trojans and Malware on the Internet Trojans On the Internet… Ever since the city of Troy was sacked by way of the apparently innocuous but ultimately deadly Trojan horse, the term has been used to talk about something that appears to be beneficial, but which hides an attack within. -
Civilians in Cyberwarfare: Conscripts
Civilians in Cyberwarfare: Conscripts Susan W. Brenner* with Leo L. Clarke** ABSTRACT Civilian-owned and -operated entities will almost certainly be a target in cyberwarfare because cyberattackers are likely to be more focused on undermining the viability of the targeted state than on invading its territory. Cyberattackers will probably target military computer systems, at least to some extent, but in a departure from traditional warfare, they will also target companies that operate aspects of the victim nation’s infrastructure. Cyberwarfare, in other words, will penetrate the territorial borders of the attacked state and target high-value civilian businesses. Nation-states will therefore need to integrate the civilian employees of these (and perhaps other) companies into their cyberwarfare response structures if a state is to be able to respond effectively to cyberattacks. While many companies may voluntarily elect to participate in such an effort, others may decline to do so, which creates a need, in effect, to conscript companies for this purpose. This Article explores how the U.S. government can go about compelling civilian cooperation in cyberwarfare without violating constitutional guarantees and limitations on the power of the Legislature and the Executive. * NCR Distinguished Professor of Law and Technology, University of Dayton School of Law. ** Associate, Drew, Cooper & Anding, P.C., Grand Rapids, Michigan. 1011 1012 Vanderbilt Journal of Transnational Law [Vol. 43:1011 TABLE OF CONTENTS I. INTRODUCTION ............................................................. -
Breaking Antivirus Software Joxean Koret, COSEINC 44CON, 2014
Breaking Antivirus Software Joxean Koret, COSEINC 44CON, 2014 Breaking antivirus software Introduction Attacking antivirus engines Finding vulnerabilities Exploiting antivirus engines Antivirus vulnerabilities Conclusions Recommendations Antivirus Engines Common features of AV engines: Written in C/C++. Signatures based engine + heuristics. On-access scanners. Command line/GUI on-demand scanners. Support for compressed file archives. Support for packers. Support for miscellaneous file formats. Advanced common features: Packet filters and firewalls. Drivers to protect the product, anti-rootkits, etc... Anti-exploiting toolkits. Antivirus products or engines An antivirus engine is just the core, the kernel, of an antivirus product. Some antivirus engines are used by multiple products. For example, BitDefender is the most widely used antivirus kernel. It's used by so many products like QiHoo360, G-Data, eScan, F-Secure, etc... Most “big” antivirus companies have their own engine but not all. And some companies, like F-Secure, integrate 3rd party engines in their products. In general, during this talk I will refer to AV engines, to the kernels, except when specified the word “product”. Attack surface Fact: installing an application in your computer makes you a bit more vulnerable. You just increased your attack surface. If the application is local: your local attack surface increased. If the application is remote: your remote attack surface increased. If your application runs with the highest privileges, installs kernel drivers, a packet filter and tries to handle anything your computer may do... Your attack surface dramatically increased. Myths and reality Antivirus propaganda: “We make your computer safer with no performance penalty!” “We protect against unknown zero day attacks!”. -
Cyber Warfare: Surviving an Attack
14 Cyber Warfare: Surviving an Attack By Devabhaktuni Srikrishna Cyberspace is a new domain of warfare. Created to minimize the vulnerability of United States communications networks to a crippling nuclear first strike by the Soviet Union, the Internet that was originally envisioned to enhance U.S. security is turning into a battlefield 1 for nations or sub-national groups to launch virally spreading attacks 2 and induce network failures potentially involving critical infrastructure systems.3 Cyber warfare and cyberoffense 4 have been a part of U.S. military operations for decades.5 Treaties and rules of engagement define what is off-limits during a cyberwar.6 The more vulnerable the system is, the more policy is necessary to deter adversarial nations from launching attacks, and vice-versa. Some cyberattacks are analogous to air forces probing one anotherʼs defenses or perhaps to espionage during the Cold War, which occurred though there was no official war and no physical harm. Cyberespionage largest recent cyberattacks in their book, but due to a gap in theory and practice. operations of China, for example, against the United States and its allies Cyber War: The Next Threat to National Organizations are vulnerable to the extent have been going on for years and will Security and What to Do About It. Once a they want to be and to how much they want never really end.7 virus or malware is inadvertently to spend to address vulnerabilities. 14 And downloaded onto a networked personal cyber vulnerabilities can be completely U.S. Air Force General Kevin Chilton, computer (PC) by a user9, the PC can be eliminated -- unlike conventional, nuclear, former Commander-in-Chief of commandeered to perform cyberattacks chemical, or biological which are permanent Strategic Command, has stated that ranging from electronic banking crimes, vulnerabilities due to laws of nature. -
Cyber War and Deterrence Applying a General Theoretical Framework
Cyber War and Deterrence Applying a General Theoretical Framework Capt Isaac Nacita, USAF Lt Col Mark Reith, USAF, PhD Disclaimer: The views and opinions expressed or implied in the Journal are those of the authors and should not be con- strued as carrying the official sanction of the Department of Defense, Air Force, Air Education and Training Command, Air University, or other agencies or departments of the US government. This article may be reproduced in whole or in part without permission. If it is reproduced, the Air and Space Power Journal requests a courtesy line. Introduction Military history, when superficially studied, will furnish arguments in support of any theory or opinion. —Paul Bronsart von Schellendorf In September 1870, after just six weeks of what many thought would be a pro- longed war, Prussian bystanders jeered Louis-Napoléon Bonaparte as he was carried to captivity in what is now Kassel, Germany. It was a fitting portrait of French na- tional disgrace.1 Their military structures before the war and lack of strategic plan- ning were partly to blame. National archivist Dallas D. Irvine points out, “it (the French system) was almost completely effective in excluding the army’s brain power from the staff and high command. To the resulting lack of intelligence at the top can be ascribed all the inexcusable defects of French military policy.”2 Never- theless, influenced by the idea that France had lost due to its lack of morale that an offensive approach would have provided, the military regrouped and refocused it- self, this time adopting “attaque á outrance.” This doctrine was French military strategy entering World War I, and it was almost immediately proved spectacularly wrong. -
Study on Computer Trojan Horse Virus and Its Prevention ZHU Zhenfang
International Journal of Engineering and Applied Sciences (IJEAS) ISSN: 2394-3661, Volume-2, Issue-8, August 2015 Study on Computer Trojan Horse Virus and Its Prevention ZHU Zhenfang to steal or viciously revise files, spy system information, steal various commands and passwords, and even format users’ Abstract— In recent years, the fast development of computer hardware. In addition, Trojan horse virus usually records network technology, has become an integral part of human’s life, keyboard operation by means of keyboard record, and then work and study. But with the popularity of the Internet, obtains the account and password of E-bank. Attackers can computer viruses, Trojans and other new terms have become some well-known network vocabularies. Studies have shown directly steal users’ wealth by obtaining accounts and that most users of computer are more or less suffered from passwords. On the other hand, Trojan horse can also cause the computer virus. So people must attach great importance to the native machine be affected by other vicious virus. network security problem. The paper studied Trojan virus. Paper first introduced the concept, characteristics and PREVENTION OF HORSE VIRUS categories of the Trojan virus and its harm, and then focused on the way and means of the Trojan’s spread. It introduced the According to the above introduction, we know that Trojan virus loading and hiding technology, too. Its last part Trojan horse virus is very dangerous. If we neglect the focused on the prevention measures, it put forward reasonable prevention, our computer may be easily attacked. For the suggestions to users, and paper also put forward prevention prevention of Trojan intrusion, Trojan intrusion should be advice to improve network security. -
A Model of Stateful Firewalls and Its Properties
A Model of Stateful Firewalls and its Properties Mohamed G. Gouda and Alex X. Liu1 Department of Computer Sciences, The University of Texas at Austin, Austin, Texas 78712-1188, U.S.A. Email: {gouda, alex}@cs.utexas.edu Abstract deployed in most businesses and institutions for securing private networks. A firewall is placed at the point of entry We propose the first model of stateful firewalls. In this between a private network and the outside Internet so that model, each stateful firewall has a variable set called the all incoming and outgoing packets have to pass through it. state of the firewall, which is used to store some packets The function of a firewall is to map each incoming or out- that the firewall has accepted previously and needs to re- going packet to one of a set of predefined decisions, such as member in the near future. Each stateful firewall consists of accept or discard. Based on how a decision is made for ev- two sections: a stateful section and a stateless section. Upon ery packet, firewalls are categorized into stateless firewalls receiving a packet, the firewall processes it in two steps. In and stateful firewalls. If a firewall decides the fate of every the first step, the firewall augments the packet with an ad- packet solely by examining the packet itself, then the fire- ditional field called the tag, and uses the stateful section to wall is called a stateless firewall. If a firewall decides the compute the value of this field according to the current state fate of some packets not only by examining the packet it- of the firewall. -
The Antivirus Hacker's Handbook
The Antivirus Hacker’s Handbook The Antivirus Hacker’s HHandanddbook Joxean Koret Elias Bachaalany The Antivirus Hacker’s Handbook Published by John Wiley & Sons, Inc. 10475 Crosspoint Boulevard Indianapolis, IN 46256 www.wiley.com Copyright © 2015 by John Wiley & Sons, Inc., Indianapolis, Indiana Published simultaneously in Canada ISBN: 978-1-119-02875-8 ISBN: 978-1-119-02876-5 (ebk) ISBN: 978-1-119-02878-9 (ebk) Manufactured in the United States of America 10 9 8 7 6 5 4 3 2 1 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 permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permis- sion 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 Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at http://www.wiley .com/go/permissions. Limit of Liability/Disclaimer of Warranty: The publisher and the author make no representations or war- ranties with respect to the accuracy or completeness of the contents of this work and specifi cally disclaim all warranties, including without limitation warranties of fi tness for a particular purpose. No warranty may be created or extended by sales or promotional materials. -
Controlling for Cybersecurity Risks of Medical Device Software
© Copyright AAMI 2014. Single user license only. Copying, networking, and distribution prohibited. Managing Risk Controlling for Cybersecurity Risks of Medical Device Software Kevin Fu and James Blum About the Authors Editor‘s Note: This article originally appeared in Communications of the ACM (2013;56[10]21–3; doi: 10.1145/2508701). Reprinted with permission. Kevin Fu, PhD, is an associate professor of While computer-related failures are known to Measuring Medical Device Security: computer science play a significant role in deaths and injuries Quantitative or Qualitative? and engineering involving medical devices reported to the U.S. Between years 2006 and 2011, 5,294 recalls and at the University of Food and Drug Administration (FDA),1 there is approximately 1.2 million adverse events of Michigan in Ann Arbor, MI. He also is a Sloan research no similar reporting system that meaningfully medical devices were reported to the FDA’s fellow. E-mail: [email protected] captures security-related failures in medical Manufacturer and User Facility Device devices. Experience (MAUDE) database.1 Almost 23% of James Blum, MD, Medical device software must satisfy system these recalls were due to computer-related is chief of critical properties, including safety, security, reliability, care and surgical failures, of which approximately 94% presented specialty anesthesia resilience, and robustness, among others. This medium to high risk of severe health conse- at Emory University column focuses on the challenges to satisfying quences (such as serious injury or death) to Hospital in a security property for medical devices: post- patients.1 For security incidents on medical Atlanta, GA, and market surveillance, integrity and availability, devices, no systematic national reporting assistant professor of anesthesiology and regulation and standards. -
Why Malware Works in Face of Antivirus Software
Outsmarted - Why Malware Works in face of Antivirus Software Matthias Deeg, Sebastian Nerz, Daniel Sauder Outsmarted – Why Malware Works in face of Antivirus Software For many years, different types of malware rank among the biggest IT security threats both in the business and the private domain. In order to protect one- self from the dangers of malware, numerous software manufacturers offer IT security products like antivirus and endpoint protection software. But these products alone offer no sufficient protection from malware that knows some tricks, as the results of our recent research with the topic antivirus evasion show. n the recent past, there were several com- from antivirus software. Thereby, current results puter-based attacks against IT networks that of our recent research are presented and recom- became public and raised a lot of media at- mendations are given for dealing with threats and Itention. Especially the attacks against the New security risks caused by malware. York Times [1] and the Washington Post [2] at the beginning of 2013 had a world-wide media How Antivirus Software Works coverage and also heated the debate about such Current antivirus software, no matter if a stand- cyber threats with manufacturers of IT security alone software product or a component of a soft- products like antivirus and endpoint protection ware suite (host intrusion detection/prevention software. In both mentioned cases, attackers were software, endpoint protection software, etc.), uses able to install malware on computer systems of different methods to detect known and unknown employees in order to literally spy on the affect- threats by means of malware.