worms viruses and other automated malware
Tài liệu Module 09 Viruses and Worms doc
... and infect at later stages Attack Phase: • Some viruses have trigger events to activate and corrupt systems • Some viruses have bugs that replicate and perform activities like file deletion and ... Create Computer Viruses Virus writers can have various reasons for creating and g spreading malware Viruses have been written as: • • • • • • • • • EC-Council Research projects Pranks Vandalism To ... There is a difference between general viruses and worms A worm is a special type of virus that can replicate itself and use memory, but cannot attach itself to other programs h i lf h A worm spreads...
Ngày tải lên: 17/02/2014, 08:20
WHO Guidelines for Pharmacological Management of Pandemic Influenza A(H1N1) 2009 and other Influenza Viruses potx
... 6.5 Antiviral treatment recommendations: Other influenza virus strains 18 6.6 Use of antivirals for chemoprophylaxis of pandemic influenza A (H1N1) 2009 virus infection 19 6.7 Other considerations 20 OTHER ... subsequent sections: Use of antivirals for treatment of influenza Population Pandemic influenza A (H1N1) 2009 and other seasonal influenza viruses Uncomplicated clinical presentation Patients in higher risk ... infection, as well their use for chemoprophylaxis. This document addresses the most widely available and licensed antiviral medicines, the two neuraminidase inhibitors oseltamivir and zanamivir, and the two M2 inhibitors amantadine and rimantadine. It also ...
Ngày tải lên: 08/03/2014, 14:20
Báo cáo sinh học: " Hepatitis C (HCV), hepatitis B (HBV), the human immunodeficiency viruses (HIV), and other viruses that replicate via RNA intermediaries," pdf
... understanding RNA virus quasispecies biology arise because of RNA polymerase infidelity and the mode of viral replication: 1: Replication kinetics Hepatitis C, HIV, and HBV and other viruses, ... RNApol For viruses, and their polymerase, evolutionary survival – i.e whether the polymerase, and its viral shell, avoids immune surveillance, gains access to cells, and replicates to infect other ... variations in host density, and evolving cell receptor polymorphisms, immune and other host responses, among other variables, will enjoy a competitive advantage over viruses lacking innate responsiveness...
Ngày tải lên: 18/06/2014, 22:20
Module V Viruses and Worms.Introduction to VirusComputer viruses are perceived as a threat to potx
... and infect at later stages Attack Phase: • Some viruses have trigger events to activate and corrupt systems • Some viruses have bugs that replicate and perform activities like file deletion and ... Create Computer Viruses Virus writers can have various reasons for creating and g spreading malware Viruses have been written as: • • • • • • • • • Research projects Pranks Vandalism To attack ... There is a difference between general viruses and worms A worm is a special type of virus that can replicate itself and use memory, but cannot attach itself to other programs h i lf h A worm spreads...
Ngày tải lên: 31/07/2014, 04:20
Báo cáo khoa học: "Gas-permeable ethylene bags for the small scale cultivation of highly pathogenic avian influenza H5N1 and other viruses in embryonated chicken eggs" docx
... grew JEV and VEEV; KSM grew JEV and VEEV and managed alpha- and flavivirus programs; MDH performed molecular genetic studies including sequence analyses and alignments; JOR performed JEV and VEEV ... ECE and harvested 72 hrs after infection of 9-day old ECE with 102 to 103 TCID50 units of virus and incubation at 34°C and primarily reserved for isolating influenza viruses from humans when standard ... Inoculations into the YS and CAM are performed for the primary isolation of some avian influenza viruses from non-chicken species and some swine influenza viruses [[11], and J Lednicky, unpublished...
Ngày tải lên: 12/08/2014, 04:21
Computer Viruses and Malware phần 1 pps
... primarily viruses and worms, and its countermeasures The next chapter lays the groundwork with some basic definitions and a timeline of malware Then, on to viruses: Chapters 3, 4, and cover viruses, anti-virus ... Traffic accepted by an IDS and a host TTL attack on an IDS Network traffic throttling Organized crime and access-for-sale worms Disorganized crime and access-for-sale worms Malware analysis workflow ... malicious The spectrum of malware covers a wide variety of specific threats, including viruses, worms, Trojan horses, and spyware The focus of this book is malware, and the techniques which can...
Ngày tải lên: 14/08/2014, 18:20
Computer Viruses and Malware phần 2 ppsx
... There's a distinction to be made between the malware author and the malware distributor Writing malware doesn't imply distributing malware, and vice versa, and there have been cases where the two ... describe the person who created the malware This book will use the comparatively bland terms malware author and malware writer to describe people who create malware; when appropriate, more specific ... characteristic is that worms are self-replicating too, but self-replication of a worm is distinct in two ways First, worms are standalone,^ and not rely on other executable code Second, worms spread from...
Ngày tải lên: 14/08/2014, 18:20
Computer Viruses and Malware phần 3 ppt
... use automated theorem proving, and Michalewicz and Fogel [206] cover a wide variety of heuristic search methods 128 Ferric and Shannon [105] 129 Yetiser[351] 130 This section is based on Szor and ... look for multiple patterns efficiently, and which scale well The next sections examine three such algorithms, which illustrate 56 COMPUTER VIRUSES AND MALWARE other C hi 2) >{4j chip,hip ^^7j)—^^->(^ ... one sequence of code and output another, equivalent, sequence of code Choosing which technique to apply and where to apply it can be selected by the engine using a pseudo-random number generator...
Ngày tải lên: 14/08/2014, 18:20
Computer Viruses and Malware phần 4 pps
... them 80 COMPUTER VIRUSES AND MALWARE Static heuristics • Pro: Static heuristic analysis detects both known and unknown viruses • Con: False positives are a major problem, and a detected virus ... using live viruses may seem to be a good idea, and an endless supply of them is available on the Internet and in a typical mailbox ^^^ Malware of any sort is potentially dangerous, though, and shouldn't ... done for certain file types; only executable files may be scanned, for instance, and not data files Viruses and other threats have been markedly versatile in choosing places to reside, making...
Ngày tải lên: 14/08/2014, 18:20
Computer Viruses and Malware phần 5 ppsx
... values and vice versa A careful mix of code and data may even throw off human analysis temporarily The x86 assembly code in Figure 5.2 starts with a subroutine call that 104 COMPUTER VIRUSES AND MALWARE ... matches the stored checksum, then the original file contents have been located and can be 84 COMPUTER VIRUSES AND MALWARE Header 1000-byte checksum < = 5309 1000-byte checksum < = 0867 1000-byte ... designed to describe viruses, and how to detect, verify, and disinfect each one.^^^ Two examples are given in Figure 4.16 Anti-virus researchers create descriptions such as these, and a compiler for...
Ngày tải lên: 14/08/2014, 18:20
Computer Viruses and Malware phần 6 pptx
... are found, and defenses to these weaknesses are examined Where possible, weaknesses and defenses are presented in a language- and architecture-independent way 110 COMPUTER VIRUSES AND MALWARE High ... 122 123 124 125 126 127 128 129 130 131 COMPUTER VIRUSES AND MALWARE Hasson [139] andCrackZ [81] See Rosenberg [268] for more information on this and single-stepping Hasson [139] Pless [254] talks ... Sometimes, bounds-checking code is present, but has bugs Other times, a buffer overflow is an indirect effect of another bug 114 COMPUTER VIRUSES AND MALWARE def main(): fill_buffer0 def fill_buffer0...
Ngày tải lên: 14/08/2014, 18:20
Computer Viruses and Malware phần 7 potx
... like technical weaknesses and human weaknesses Worms can also employ the same techniques that viruses in order to try and conceal themselves; worms can use encryption, and can be oligomorphic, ... like their usemames and passwords.^^^ Social engineering may also be used by malware to spread, by tricking people into propagating the malware along And, one special form of "malware" that involves ... to ingratiate themselves to other users, or may genuinely want to warn others A hidden agenda may be present, too - a recipient may pass the 138 COMPUTER VIRUSES AND MALWARE hoax around, perceiving...
Ngày tải lên: 14/08/2014, 18:20
Computer Viruses and Malware phần 8 ppt
... system version, network services, and network service versions.^ Worms able to exploit multiple technical weaknesses can pick a suitable infection vector, and other worms can rule out unsuitable ... will reassemble 166 COMPUTER VIRUSES AND MALWARE Traffic accepted by host Traffic accepted by IDS Figure 8.4 Traffic accepted by an IDS and a host the fragments and reorder the packets The IDS ... applications like email and instant messaging.^^^ 172 COMPUTER VIRUSES AND MALWARE Throttles are designed around heuristics characterizing "normal" network usage Like other heuristic systems,...
Ngày tải lên: 14/08/2014, 18:20
Computer Viruses and Malware phần 9 doc
... gravity: good (benevolent malware) , annoying (spam), illegal (access-for-sale worms and cryptovirology), and martial (information warfare and cyberterrorism) 9.1 Benevolent Malware "Benevolent malicious ... subverted by another malware writer, and how can antivirus software distinguish good worms from bad?^^^ Of all the possible applications for benevolent malware, including predator worms, there ... Cryptovirology Using viruses and other malware for extortion is called cryptovirology}^^ After a virus has deployed its payload and been discovered, the effects of its payload should be devastating and irreversible...
Ngày tải lên: 14/08/2014, 18:20
Computer Viruses and Malware phần 10 pps
... Deng, and L M Chi System, apparatus and method for the detection and removal of viruses in macros United States Patent #5,951,698, 14 September 1999 [62] S Chen and S Ranka Detecting Internet worms ... A Gupta and D C DuVarney Using predators to combat worms and viruses: A simulation-based study In 20th Annual Computer Security Applications Conference, 2004 [135] M Handley, V Paxson, and C Kreibich ... verification and removal Virus Bulletin, pages 7-11, November 1991 [65] D M Chess, R Ford, J O Kephart, and M G Swimmer System and method for detecting and repairing document-infecting viruses using...
Ngày tải lên: 14/08/2014, 18:20
Chuong 8 slide về viruses and worms
... www.vncert.gov.vn Module VIRUSES AND WORMS www.vncert.gov.vn Introduction to Virus www.vncert.gov.vn Virus and Worm Statistic 2010 www.vncert.gov.vn Virus History ... Virus: Attach phase www.vncert.gov.vn Why People Create Computer Viruses www.vncert.gov.vn How does a computer get infected by viruses www.vncert.gov.vn Virus Hoaxes www.vncert.gov.vn Indications ... does a Virus Infect www.vncert.gov.vn Virus Hoaxes www.vncert.gov.vn System Sector Viruses www.vncert.gov.vn Macro Viruses www.vncert.gov.vn Stealth Virus www.vncert.gov.vn Bootable CD-ROM Virus...
Ngày tải lên: 15/09/2014, 16:07
