Ppt on computer malware scanner

Viruses, Hacking, and AntiVirus. What is a Virus? A type of MalwareMalware is short for malicious software A virus – a computer program – Can replicate.

Scanner – software that probes a server or computer network for open ports. Use ports to access network. Bots and Botting Programs that take control of a computers normal operation, or operate in stealth mode on a computer Can be used to disrupt normal operations Can turn a user’s computer into a source of malware/be allowed in and out Anti-Virus Pros: Prevents, detects and removes malware Cons: False Positives, False Negatives Slows down your computer Be Smart! Don’t open emails that you don’t recognize Don/


ANTIVIRUS AND ANTI-SPYWARE. ANTIVIRUS ??? Antivirus (or anti-virus) software is used to prevent, detect, and remove malware, including computer viruses,

vendors maintain websites with free online scanning capability of the entire computer, critical areas only, local disks, folders or files. Examples include Kaspersky Online Scanner[30] and ESET Online Scanner. However, no matter how useful antivirus software is, it can/software dropped over a one-year period. ANTISPYWARE ??? Spyware is a type of malware that is installed on computers and collects information about users without their knowledge. Spywares such as keyloggers are installed by the owner /


COMPUTER FORENSICS BY HENRY O. QUARSHIE. INTRODUCTION Computer forensics is a newer field in the legal and law enforcement field. As the computer industry.

credit cards..( source Daily Graphic 19 th Sept 2005) Techniques and Tools used in Computer Crime Computer Virus, spyware, adware, malware. cracking Spamming Phishing Cyberterrorism Computer Virus A computer virus can be defined by three basic properties: It is a piece of Software / the form changes to such an extent that if not studied properly some of its variants evade the virus scanner. Almost all the new viruses are polymorphic in nature. Stealth Methodology: A virus that actively conceals itself by/


Malware Incident Handling & Forensics. Malware Types Viruses. A virus self-replicates by inserting copies of itself into host programs or data files.

different types of utilities and scripts that can be used to probe and attack systems, such as packet sniffers, port scanners, vulnerability scanners, password crackers, remote login programs, and attack programs and scripts Malware Prevention Policy Scan media from outside of the organization for malware before using them E-mail file attachments, including compressed files (e.g.,.zip files), be saved to local drives/


Proof-Of-Concept: Signature Based Malware Detection for Websites and Domain Administrators - Anant Kochhar.

the website. 23 Detection Part 1: Detect ALL External Sites Linking from your websites 24 2 Methods Internal Scans- Scanners that reside in the web server and scan all web pages for external links. External Scans- Crawlers, not residing /for full comparison. 37 On A Positive Match Immediately remove the malware site link from the infected page. Run AV and malware detection scans on the affected server. Or quarantine suspected computers… Change FTP password. 38 Multi Sourced Signatures List of external sites/


Dynamic Computing & Dynamic Threats Requires Dynamic Security.

July Jul-12 2 | ©2012, Palo Alto Networks. Confidential and Proprietary. Agenda Todays Dynamic Enterprise Computing Environment An Equally Dynamic Threat Landscape The Tension between Security and Productivity What to do About It / for Networks Tools for Tools Firewall Fuzzers Anti-Virus Anti-Malware NIPS HIPS MDM DLP WAF SIEM Authentication Encryption Sniffers Forensics Packet Crafters Port Scanners Rootkit Detectors Vulnerability Scanners Web Proxies Wireless Security Etc………………………………….. 18 | ©2012, Palo/


Presented by Jamie Leben IT-Works Computer Services

either: Trend Micro Bit Defender If one scanner finds and removes malware, run the other scanner. Repeat until no results appear. If no malware is found by either, the PC is likely clean. If malware continues to appear after 3-4 scans, start in Safe Mode Shut off the computer Place your finger on the F8 key Start the computer After the first boot screen disappears, press/


Malware: Scanners, Sniffers, Viruses, Worms, Mobile Code COEN 252 / 152: Computer Forensics.

Malware: Scanners, Sniffers, Viruses, Worms, Mobile Code COEN 252 / 152: Computer Forensics Scanning Wireless Scanners War driving: Finding Wireless Access Points Normal WLAN needs < 100 m to access /points. Scanning War Dialing Looking for modems by dialing all numbers of an organization. Target are ill-configured modems. Especially those connected to computers with remote control products such as VNC, psAnywhere, Mini Remote Control, Laplink Gold, … Scanning Network Mapping (Assume that attackers have /


Malware Analysis For Neophytes: A MAAWG Training Seminar Joe St Sauver, Ph.D. MAAWG Senior Technical Advisor MAAWG, San Francisco.

a program, information, code, or command, and as a result of such conduct, intentionally causes damage without authorization, to a protected computer; […] (b) Whoever conspires to commit or attempts to commit an offense under subsection (a) of this section shall be punished as/companies, e.g., see "Virus Scanners for Virus Authors, Part II," http://krebsonsecurity.com/2010/04/virus- scanners-for-virus-authors-part-ii/ In any event, once we think weve identified the malware family that were looking at, what /


Malware: Scanners, Sniffers, Viruses, Worms, Mobile Code COEN 252 / 152: Computer Forensics.

Malware: Scanners, Sniffers, Viruses, Worms, Mobile Code COEN 252 / 152: Computer Forensics Scanning Wireless Scanners War driving: Finding Wireless Access Points Normal WLAN needs < 100 m to access /points. Scanning War Dialing Looking for modems by dialing all numbers of an organization. Target are ill-configured modems. Especially those connected to computers with remote control products such as VNC, psAnywhere, Mini Remote Control, Laplink Gold, … Scanning Network Mapping (Assume that attackers have /


Slide 1 Vitaly Shmatikov CS 378 Malware: Viruses and Rootkits.

propagate independently Worms, automated viruses uMany infection vectors and propagation methods uModern malware often combines trojan, rootkit, and worm functionality slide 3 [Geer] / to avoid explicit decryptor code slide 13 Virus Detection uSimple anti-virus scanners Look for signatures (fragments of known virus code) Heuristics for recognizing/slide 48 [Provos et al.] Drive-By Botnet Infection uJoin infected computer to a botnet uExfiltrate information (especially passwords) Keystroke loggers or browser/


Computers Merit Badge Conasauga MB College. Sad but true...

output) Microphone Microphone Scanner Scanner Game controllers Game controllers/computer-security http://onguardonline.gov/articles/0011- malware http://onguardonline.gov/articles/0011- malware http://onguardonline.gov/articles/0011- malware http://onguardonline.gov/articles/0011- malware http://onguardonline.gov/articles/0009- computer-security http://onguardonline.gov/articles/0009- computer-security http://onguardonline.gov/articles/0011-malware Requirement 5e – Internet and WWW 5e. Describe how computers/


Computer Security set of slides 9 Dr Alexei Vernitski.

of the Java sandbox. As a result of the vulnerability in the most recent version of Java, attackers can spread malware simply by... (how?) Windows, Mac OS X and Linux desktops – which are more vulnerable? In the absence of/ Scanning for vulnerabilities As there are so many faults that can occur in a computer system security experts and specialist security firms have developed security “scanners” or analysers. Scanners are broadly in two categories: – local vulnerability analysers: explore the local operating/


Logical Security threats. Logical security Protects computer-based data from software-based and communications- based threats.

early viruses simple code, easily removed as become more complex, so must the countermeasures generations ◦ first - signature scanners ◦ second – heuristics rule (structure) ◦ third - identify actions ◦ fourth - combination packages Propagation Using infected / IP and DNS addresses of the computer  users’ Internet habits  bank details used to access accounts or make online purchases etc… 50 Types of Malware… Adware ◦ is software that is installed on your computer to show you advertisements ◦ These may/


Cs3102: Theory of Computation Class 10: DFAs in Practice Spring 2010 University of Virginia David Evans.

represents the relative size. What’s on the Exam? Definitions Language, problem, sets Constructing and understanding computing models Finite automata (DFA, NFA) Pushdown automata (DPDA, NPDA) Grammars (Context-Free Grammar) Language/ DPDA (or DCFG) Context-Free Languages Deterministic Context-Free Languages Regular Languages DFAs in Practice Malware Scanner W32.Bolzano.Gen: 576a222bd2c20400558b4c240cd9ffff 07fbffffff{0-2}5c4e544c445200{0-2} 5c57494e4e545c73797374656d 33325c6e746f736b726e6c2e657 86500{0-29}/


Copyright © 2006, Idea Group Inc. 1 Chapter IV Malware and Antivirus Deployment for Enterprise Security By: Raj Sharman,K. Pramod Krishna, H. Raghov Rao.

up advertisements making Web browsing difficult; – sudden change in the performance of the computer slowing it down considerably. – appearance of new and unwanted toolbar on the /executes. – The virus decrypts itself, exposing the virus body to the scanner. – The scanner Identify the virus signature. Copyright © 2006, Idea Group Inc. 17/human weaknesses. – The time between vulnerability disclosure and release of malware exploiting the vulnerability continues to get shorter, requiring more proactive assessment/


Content  Overview of Computer Networks (Wireless and Wired)  IP Address, MAC Address and Workgroups  LAN Setup and Creating Workgroup  Concept on.

Servers (Proxy, DNS, Web, Mail)  File, Folder, Printer, Scanner Sharing over LAN  Browser Configuration and Internet Options  File download and popup unblock  Internet virus, spyware, malware, spam  Searching in the web  E-mail Computer Networks  Computer network connects two or more autonomous computers.  The computers can be geographically located anywhere. Overview of Computer Networks (Wireless & Wired)  Connection among computer for Information/ data and resource sharing.  Wireless and Wired/


ERKAN ARSLAN Taking A Care Of Your Computer 1. INDEX Clean out the dust Keep your PC cool Buy quality hardware Get power protection Get an anti-virus.

Defender, Spybot Search & Destroy, and Adware are well known malware scanners. Run The Defragmenter Utility 23 Defragment your hard disks at least once every month or two. The defragmenter will help ensure that your files are located at the right place on the hard drive and should boost the overall speed of your computer. It does this by physically organizing the contents of/


Software Security Malware: Trojans, Virii, and Worms.

Software Security Malware: Trojans, Virii, and Worms SECURITY INNOVATION ©2003 A Subject Overview Viruses Worms Trojans SECURITY INNOVATION / –Disinfectors –Heuristics InoculatorsInoculators Integrity CheckersIntegrity Checkers Safe Computing (aka Common Sense)Safe Computing (aka Common Sense) NBAR/QoSNBAR/QoS Eicar test stringEicar test string Anti-Virus PackagesAnti-Virus Packages SECURITY INNOVATION ©2003 Anti-Virus Technologies Scanners Scanners consist of a twofold method of protectionScanners consist /


CSE 127 Computer Security Spring 2009 Malware I: Viruses and virus-defense Stefan Savage Many sides courtesy Carey Nachenberg.

good bootsector during normal operation (replace it when you logout or when anti-virus software isn’t running) u Bootsector malware is back with a vengeance (Meebroot/Sinowal) September 14, 201510 Virus Attachment to Host Code l Simplest case: insert/size, checksum) u Lots of different markers for different viruses; need to change all files 74 Integrity Checks & whitelists l Virus scanner computes hash or checksum of executable files (or downloads hash of “known good” files) u Assumed to be virus free! u /


How to Revive an Old Computer Howard Fosdick (C) 2009 FCI V 2. 4.

! Secure / Clean-up Windows with FREE Software TheFreeCountry.com Download.com MajorGeeks.com Install security scanners Full scans to remove virus/spyware/adware/malware Scan for Rootkits! Delete unneeded files (temp, internet temp files, install files) Delete their/ WGA & PA kill old copies of software Registry prevents porting a Windows disk across computers or even an upgraded computer Registry locks & controls installed software Intentional incompatibilities between different versions of the same product/


Understand Malware LESSON 2.6 98-367 Security Fundamentals.

e-mail generated to advertise some service or product. This phenomenon is generally considered a nuisance, but spam is not malware. However, the dramatic growth in the number of spam messages being sent is a problem for the infrastructure of the/ website, visit Windows Live safety scanner. Windows Live ® safety scanner is an online service that you can use for free spyware removal. Windows Live safety scanner  Use it to scan your computer to help protect, clean, and keep your computer running at its best. /


Discovering Computers

computer systems without permission. A script kiddie is someone, usually a teenager, who uses scripts or programs from someone else to do his/her cracking. Hacker Software Tool Starter Kits Reconnaissance: www.SamSpade.org Scanning/Sniffing Nmap port scanner www.insecure.org/nmap Advanced Port Scanner/maintain anti-virus software Install and maintain a firewall Back up your data Computer Security: Viruses Some computer viruses/worms & malware … Michaelangelo virus (1991) Melissa (worm: shut down email) Love /


Presented by: Craig Mayfield & Joey Police What solution works best for you? AntiVirus & Malware.

3Worms Virus: What is it? Viruses Wreak Havoc On Your Files 1 Now, let’s look at malware… The term computer virus is often used interchangeably with malware, though the two dont actually have the same meaning. In the strictest sense, a virus is /module but also modules for detecting spyware, basic anti rootkit protection, email and phishing protection as well as the AVG Link scanner to provide safety ratings for websites.anti rootkit AVG antivirus 9 free edition download size is around 70MB. BitDefender 10 -/


1 The Attack and Defense of Computers Dr. 許 富 皓. 2 Attacking Program Bugs.

form of Internet fraud using computer malware) that deceives or misleads users into paying money for fake or simulated removal of malware. Or it claims to get rid of, but instead introduces malware to the computer. 107 Infection Approaches [Wikipedia]Wikipedia/ 118 What do Fake Antivirus Programs Look Like? [EIU]EIU Fake Antivirus Scanner Fake Windows Security Center Fake Operating System Alert 119 Fake Antivirus Scanner [Norton]Norton 120 Fake Windows Security Center [Norton]Norton 121 Fake Operating /


What Is Vulnerability Assessment? Chapter 23. vulnerability In computer security, the term vulnerability is applied to a weakness in a system that allows.

attacker to violate the integrity of that system. Vulnerabilities may result from weak passwords, software bugs, a computer virus or other malware (malicious software), a script code injection, or an SQL injection or others A security risk is / that leave systems less secure than they could be (improperly secured accounts, running of unneeded services, etc.) Vulnerability scanners can identify both types. 15. VULNERABILITY DISCLOSURE DATE The time of disclosure is the first date that security vulnerability/


Copyright © 1995-2009 Clifford Neuman - UNIVERSITY OF SOUTHERN CALIFORNIA - INFORMATION SCIENCES INSTITUTE USC CSci530 Computer Security Systems Lecture.

point in the network, or at a single layer in the protocol stack: –Firewalls, VPN’s –IPSec –SSL –Virus scanners –Intrusion detection Copyright © 1995-2009 Clifford Neuman - UNIVERSITY OF SOUTHERN CALIFORNIA - INFORMATION SCIENCES INSTITUTE A more difficult problem Unfortunately,/rose nearly three-fold last year to 1.7 million. Those cyber attacks mostly come from malware, or malicious software, that hands control of your computer, and anything on it or entered into it, over to the bad guys without you /


CSC 382: Computer SecuritySlide #1 CSC 382: Computer Security Malware.

infection in one format inside a document inside an archive file. Scanners have to understand and have time to parse and decompress each file format. CSC 382: Computer SecuritySlide #38 Self-Protection Entry-Point Obscuring Changing initial code or / Win32/Bube virus exploits IE flaw and acts as a virus infecting IE, then downloads adware. CSC 382: Computer SecuritySlide #60 Malware Trends 2005 Online game attacks Trojans steal game identities/items, sell for $. Botnets Estimated growth of 300,000/month/


CIT 380: Securing Computer SystemsSlide #1 CIT 380: Securing Computer Systems Malware.

detection. Embedding Use multiple levels of executable packers like UPX. Scanners have to understand and have time to parse and decompress each file format. CIT 380: Securing Computer SystemsSlide #27 Self-Protection Entry-Point Obscuring Changing initial code /ransom. Spam Use network of infected systems to launder spam email. Ex: Sobig worm. CIT 380: Securing Computer SystemsSlide #33 Malware Interactions What happens when a virus infects a worm? Typically both propagate. May use each other’s self-/


Security Malware and Defenses Tanenbaum & Bo, Modern Operating Systems:4th ed., (c) 2013 Prentice-Hall, Inc. All rights reserved.

Inc. All rights reserved. Computer Security Triad Three key objectives are at the heart of computer security Data and services Availability Confidentiality Integrity Malware Malicious software – Trojan hourses, virus, worms,.. Etc Today’s malware is all about stealth Infected /Systems:4th ed., (c) 2013 Prentice-Hall, Inc. All rights reserved. Defense 2: Antivirus Some techniques – Virus Scanner Goat file to attract a virus – After analysis of virus, add to database known viruses Store file lengths – If/


Normalizing Metamorphic Malware Using Term Rewriting A. Walenstein, R. Mathur, M. R. Chouchane, and A. Lakhotia Software Research Laboratory The University.

99.5 4 99.2 7 98.9 0 98.3 2 SCAM0618 9/28/2006 Contributions Applications for assisting malware scanners  Initial exploration of possibility of “perfect” normalization  Indications of usefulness of heuristic alternatives (priority scheme and /louisiana.edu/labs/SRLwww.cacs.louisiana.edu/labs/SRL SCAM0620 9/28/2006 Software Research Lab Center for Advanced Computer Studies University of Louisiana at Lafayette Arun Lakhotia Director Andrew Walenstein Research Scientist Michael Venable Software Engineer and /


MALWARE Dr. Andy Wu BCIS 4630 Fundamentals of IT Security.

MALWARE Dr. Andy Wu BCIS 4630 Fundamentals of IT Security Overview Virus Worms Trojans Buffer overflow Rootkits 2 Milestones 1982: First virus, Elk Cloner, affected Apple II computers and caused a poem to be displayed on every 50th boot. It copied itself to the computer’s memory when booted and then could spread to other disks on that computer/ contain a decryption module but uses variable keys. Virus scanners cannot detect such viruses by the means of signatures. But they can detect the decryption module./


Adding Practical Security to Your Introduction to Computers Course Mark Ciampa Western Kentucky University.

from coming in  Stops a compromised computer from infecting other computers on network  Application-aware firewall allows user to specify which desktop applications can connect to the network 92 Check Firewall Settings 93 Test Firewall 94 Test Firewall 95 Test Firewall 96 Patch Management 97 Antivirus 98 Antivirus  Test antivirus settings Test antivirus settings  Disinfect Disinfect  Malware scanner Malware scanner  Secunia Software Inspector Secunia Software Inspector/


Worms 1. Viruses don’t break into your computer – they are invited by you – They cannot spread unless you run infected application or click on infected.

of botnets has proven to be quite challenging Supported by a thriving underground economy – Professional quality sophistication in creating malware codes – Highly adaptive to existing mitigation efforts such as taking down of central control server. 59 Borrowed from /increasing after one year!!! There are millions of computers on the Internet that do not have virus scanner nor IDS There are millions of computers on the Internet that do not have virus scanner nor IDS Borrowed from Brent ByungHoon Kang, GMU/


1 MTvScan (Malware, Trojan, Viruses Scanner) Enterprise Class Security Scanner.

Malware, Trojan, Viruses Scanner) Enterprise Class Security Scanner 2 Industry findingsArchitectureProduct FeaturesFeatures explainedScans Overview 3 Industry findings Source: White Hat security May’13 4 MTvScan Architecture 5 MTvScan Features Domain Reputation SQL Injection scan Cross site scripting(XSS) scan Intelliscan (Agent based server side scanning) Local file injection(LFI) scan Remote file injection(RFI) scan Malware/XSS) Scan Scans for type of computer security vulnerability typically found in Web /


CIT 380: Securing Computer SystemsSlide #1 CIT 380: Securing Computer Systems Malware.

Use multiple levels of executable packers like UPX. Scanners have to understand and have time to parse and decompress each file format. CIT 380: Securing Computer SystemsSlide #17 CIT 380: Securing Computer SystemsSlide #18 Self-Protection Entry-Point Obscuring /ransom. Spam Use network of infected systems to launder spam email. Ex: Sobig worm. CIT 380: Securing Computer SystemsSlide #24 Malware Interactions What happens when a virus infects a worm? Typically both propagate. May use each other’s self-/


Malware: Malicious Software. Viruses, Worms, Trojans, Rootkits Malware can be classified into several categories, depending on propagation and concealment.

reveals presence of rootkit –Could be defeated by rootkit that intercepts and modifies results of raw scan operations Malware Zombies Malware can turn a computer in to a zombie, which is a machine that is controlled externally to perform malicious attacks, usually as/ viruses that are found and the time to perform the scan o Retrospective: test the proactive detection of the scanner for unknown viruses, to verify which vendor uses better heuristics Anti-viruses are ranked using both parameters: http://www/


Malware CS155 Spring 2009 Elie Bursztein CS155 Spring 2009 Elie Bursztein.

the resulting code:Any attempt to reinstall the system may lead to loss of important information and computer damage from pandalab blog Detection Outline What malware are How do they infect hosts How do they propagate Zoo visit ! How to detect /-virus Analyze system behavior Analyze binary to decide if it a virus Type : Scanner Real time monitor Impossibility result It is not possible to build a perfect virus/malware detector (Cohen) Impossibility result Diagonal argument P is a perfect detection program V/


Chapter 5 Computer Abuse Dr. Alaa El-Halees 1. Outline Definition Computer Fraud Spam Computer forgery Defamation Malware Hackers Social Engineering Abuse.

30. Because the ransom is small, people tend to pay up and keep quiet. Outline Definition Computer Fraud Spam Computer forgery Defamation Malware Hackers Social Engineering Abuse in Workplace 17 Spam Spamming is the abuse of electronic messaging systems to /site technical support. The company took the checks they received from the computer manufacturers in payment of services and created exact duplicates by using off-the-shelf scanners, graphics software, and printers. If the double payments were caught, the/


Malware Example 1 You bank online and receive an email like this from your Bank. Do you: 1.Mark it as spam and remove it from your in-box 2.Follow the.

name and says they calling from BTs Indian call centre in Bangalore. You are told that BTs anti- malware scanners had detected a virus on your computer. In a re-assuring voice you are asked whether you would install a piece of anti-malware software from BTs malware website. He gives you the website address. Do you: 1.Think what a nice person he is/


Part 4  Software 1 Part IV: Software Chapter 11: Software Flaws and Malware If automobiles had followed the same development cycle as the computer,

Part 4  Software 1 Part IV: Software Chapter 11: Software Flaws and Malware If automobiles had followed the same development cycle as the computer, a Rolls-Royce would today cost $100, get a million miles per gallon, and explode once a year, /login program… o You have not gotten rid of the problem!  In the real world o Attackers try to hide viruses in virus scanner o Imagine damage that would be done by attack on virus signature updates Chapter 12: Insecurity in Software Every time I write about the/


1 Securing Unmanaged Computers Solutions, Strategies and Effective Practices Costs of Security Residential Security Strategies/Case Studies Discussion.

devices can identify systems with security vulnerabilities -- intrusion prevention, intrusion detection, vulnerability scanners, and packet shapers. 11 Host-based Firewalls Running a firewall on the computer system provides additional protection. Techniques being used:  Windows XP - SP2 provides/? 26 Recent Security Challenges Welchia - July 2003 Blaster - August 2003 Worms - ongoing Agobot/Gaobot -2004 Malware - 2004 Adware - 2004 Spyware - 2004 Rodin: The Gates of Hell D. Futey photograph 27 Residential /


5/18/2015 HACKING MALWARE Offense is the new Defense Val Smith Danny Quist H A C K I N GM A L W A R E Slide#:

malware No vetting, all you need is an email address Analysis done in a very open manner with reproducible results Analysis is available online in a web forum environment Bulletin board type environment Soon moving to an auto decompiled wiki-styled environment Auto scanning with set of AV products Similar idea as the auto-scanners/ Strings Disassembly -> Wiki 5/18/2015 H A C K I N GM A L W A R E Slide#: 39 Offensive Computing Malware Analysis Tool 5/18/2015 H A C K I N GM A L W A R E Slide#: 40 5/18/2015 /


A practical overview how malware threatens the internet economy at the example of mebroot/torpig.

. All browsers besides IE.  SPack Lite is not detected by any AntiViruss, And will not be found by web virus scanners."  Screendumps, pricing and more are available on the "authors" website. The shop is open:  Also available as a/ losses are actually increasing  Furthermore, the same survey found that most organisations tracked the frequency of malware incidents but not the financial impacts.( Computer Economics )  Another survey estimated the annual loss to United States businesses at USD 67.2 billion/


Classroom Activities Guide

Spyware might watch for victim’s passwords or otherwise spy on their online activity. What does malware do? (continued) Still others write malware that uses the victim’s computer for their own purposes. Use it to store files (often illegal) and make them available to/less reputable web sites. 3) Beware of free downloads that seem too good to be true. 4) Use a good virus scanner and keep your virus signatures up-to-date. 5) Consider using less popular email readers and web browser software.( Attackers target/


Malware Defense By:Tanvi lotliker TE COMPUTER 411128.

:Tanvi lotliker TE COMPUTER 411128 Malware Defense index Antivirus Approaches Generic Decryption Digital immune system Behavior-Blocking Software Worm Countermeasures Bot Countermeasures/virus.  Causes no damage to computer.  In order to detect such polymorphic virus, executable files are run through a GD scanner, which contains the following elements: o CPU emulator o Virus signature scanner o Emulation control module CPU emulator: A software-based virtual computer. Instructions in an executable file are /


Malware APA Professional Center Mohammad Reza Faghani APA Professional Center Mohammad Reza Faghani.

What it is good for ? Steal personal information Delete files Click fraud Steal software serial numbers Use your computer as relay The Malware Zoo Virus Backdoor Trojan horse Rootkit Scareware Adware Worm What is a Virus ? a program that can infect/ Analyze system behavior Analyze binary to decide if it a virus Type : Scanner Real time monitor Impossibility result It is not possible to build a perfect virus/malware detector (Cohen) Impossibility result Diagonal argument P is a perfect detection program /


Hacker Zombie Computer Reflectors Target.

This helps the hacker and he is able to spread malware on the system. Therefore, it is important that one opts for antivirus, which also has a rootkit scanner, which will be able to detect the invasion. Adware / of different scamming activities and often poses to the financial threats. Software used to prevent, detect and remove malware (of all descriptions), such as: computer viruses, adware, backdoors, malicious BHOs, dialers, fraudtools, hijackers, keyloggers, malicious LSPs, rootkits, spyware, trojan/


Software Software Flaws and Malware Insecurity in Software Operating Systems and Security Chapter 11 Software flaws and malware 1.

Resulted in a slap on the wrist One of the first computer crime cases Many cases since follow a similar pattern Companies often reluctant to prosecute Chapter 11 Software flaws and malware 94 Trusting Software – 1/2 Can you ever trust software?/the problem! In the real world Attackers try to hide viruses in virus scanner Imagine damage that would be done by attack on virus signature updates Chapter 11 Software flaws and malware 96 Fingerd, sendmail Fingerd TCP/IP command. Remote user information server. /


Week 10-11c Attacks and Malware III. Remote Control Facility distinguishes a bot from a worm distinguishes a bot from a worm worm propagates itself and.

report on the processes, files, and registries on a computer hides by subverting the mechanisms that monitor and report on the processes, files, and registries on a computer gives administrator (or root) privileges to attacker gives /Virus Software first generation: simple scanners requires a malware signature to identify the malware limited to the detection of known malware second generation: heuristic scanners uses heuristic rules to search for probable malware instances another approach is integrity /


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