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This document discusses computer viruses and how to protect against them. It defines a computer virus as a program that replicates by copying itself to other programs or devices. It then lists common types of viruses like worms, ransomware, spyware, and botnets. To protect devices, it recommends not connecting to unknown USB drives or opening email attachments, and using antivirus software and online scanning services. It provides examples of an Eicar test file and the VirusTotal scanning site to demonstrate online scanning.
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Viruses are potentially damaging computer programs that can spread and damage files. Worms copy themselves repeatedly, using up resources and possibly shutting down computers or networks. Trojan horses hide within or look like legitimate programs until triggered. Viruses can spread through email attachments when users open infected files. Antivirus programs identify and remove viruses, worms, and Trojan horses by detecting virus signatures and inoculating files to prevent infection. Users should install antivirus software, firewalls, and be cautious of email attachments to protect their systems from infection.
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Computer viruses are malicious code that replicates by copying itself to other programs and can change computer performance. Viruses require user permission to spread. Some famous viruses include I Love You, Cryptolocker, and MyDoom. Viruses spread by sharing infected files, visiting infected websites, opening spam emails or attachments, downloading unverified programs, and failing to read software license agreements fully. Symptoms of viruses include slow performance, erratic behavior, data loss, and frequent crashes. Protection methods include not opening suspicious messages, deleting spam, updating the OS regularly, using antivirus software, and only downloading from trusted sites.
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Antivirus programs are an effective way to protect computers from viruses. They work by identifying and removing viruses found in memory, storage media, or incoming files. Many antivirus programs also automatically scan files downloaded from the web, email attachments, opened files, and removable media inserted into the computer. Antivirus programs use virus signatures or definitions to identify viruses, and most allow users to automatically update these signatures from the web to protect against newly discovered viruses. While no method can guarantee complete safety, installing and regularly updating an antivirus program is an effective technique to safeguard computers from virus threats.
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Antivirus programs are an effective way to protect computers from viruses. They work by identifying and removing viruses found in memory, storage media, or incoming files. Many antivirus programs also automatically scan files downloaded from the web, email attachments, opened files, and removable media inserted into the computer. Antivirus programs use virus signatures or definitions to identify viruses, and most allow users to automatically update these signatures from the web to protect against newly discovered viruses. While no method can guarantee complete safety, installing and regularly updating an antivirus program is an effective technique to safeguard computers from virus threats.
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Antivirus programs are an effective way to protect computers from viruses. They work by identifying and removing viruses found in memory, storage media, or incoming files. Many antivirus programs also automatically scan files downloaded from the web, email attachments, opened files, and removable media inserted into the computer. Antivirus programs use virus signatures or definitions to identify viruses, and most allow users to automatically update these signatures from the web to protect against newly discovered viruses. While no method can guarantee complete safety, installing and regularly updating an antivirus program is an effective technique to safeguard computers from virus threats.
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Viruses, worms, and Trojan horses are malicious software programs that can infect computers. Viruses typically infect computers through opening infected email attachments and then replicate quickly, spreading from one computer to another worldwide. Some viruses just overwhelm email servers with messages, while others may lie dormant for a period of time before deleting files or entire hard drives. In 1988, a virus accidentally sent by a student infected over 6,000 computers in minutes, nearly crashing the internet. To protect against these digital threats, users should run regular antivirus software to scan incoming emails and files for infections.
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Antivirus programs are an effective way to protect computers from viruses. They work by identifying and removing viruses found in memory, storage, or incoming files. Many antivirus programs allow users to automatically update virus definitions from the web to protect against new viruses. While no method can guarantee complete safety, installing and regularly updating an antivirus program helps safeguard computers and networks from potential loss or damage from viruses.
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Antivirus programs are an effective way to protect computers from viruses. They work by identifying and removing viruses found in memory, storage media, or incoming files. Many antivirus programs also automatically scan files downloaded from the web, email attachments, opened files, and removable media inserted into the computer. Antivirus programs use virus signatures or definitions to identify viruses, and most allow users to automatically update these signatures from the web to protect against newly discovered viruses. While no method can guarantee complete safety, installing and regularly updating an antivirus program is an effective technique to safeguard computers from virus threats.
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1) The document discusses computer viruses, describing them as malware programs that can copy themselves and infect computers without permission by interfering with operations, corrupting or deleting data, and slowing down systems.
2) It outlines several common types of viruses like file deleting viruses, boot sector viruses, macro viruses, Trojan horses, retroviruses, rootkit viruses, and mass mailer viruses.
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1) The document discusses computer viruses, describing them as malware programs that can copy themselves and infect computers without permission by interfering with operations, corrupting or deleting data, and slowing down systems.
2) It outlines several common types of viruses like file deleting viruses, boot sector viruses, macro viruses, Trojan horses, retroviruses, rootkit viruses, and mass mailer viruses.
3) Steps for troubleshooting a virus-infected PC include using system restore, running scans with antivirus software, and performing a clean install as a last resort. Running full system scans in safe mode and testing the computer after are recommended for removing viruses.
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A Trojan horse is a type of malware that disguises itself as legitimate software to trick users into installing it. There are two main types: programs with malicious code inserted by hackers, and standalone files masquerading as something harmless like a game. Trojans can carry various payloads like time bombs, logic bombs, or droppers. To avoid infection, users should only download software from trusted sources, use antivirus tools, and avoid unexpected file attachments.
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III. Popular antivirus options include free programs like AVG and paid solutions like Norton and Kaspersky, which are effective but may not always restore damaged files to their original state. Regular scanning and updating is needed to maintain protection.
Computer virus and antivirus
This document discusses computer viruses and how to prevent them. It defines what a computer virus is and notes that they often affect Microsoft Windows systems. It provides tips on how to avoid viruses such as screening emails before downloading, using updated antivirus software, and disabling email preview on Windows. It also discusses the types of viruses, signs of an infected computer, and popular antivirus software options.
Virus project
This document provides information about computer viruses, including:
- What a computer virus is and how it spreads by infecting files and programs.
- The different types of viruses like direct action, resident, overwrite, and directory viruses.
- The differences between viruses, worms, and Trojan horses.
- Symptoms of an infected computer and what to do if suspecting a virus attack.
- Popular antivirus software options and factors to consider like update frequency and scanning capabilities.
- How antivirus software works to detect, remove, and quarantine viruses to prevent spreading.
- General precautions like scanning removable media and keeping software updated.
Firewall , Viruses and Antiviruses
This Presentation explains about Firewalls, Viruses and Antiviruses. I hope this presentation may help you in understanding about Viruses, Firewall and Antiviruses Software.
Computer Security 101
Malicious software like viruses, spyware, and Trojans can damage your computer and lead to identity theft. To detect malware, check for strange computer behavior like slow performance or unexpected file downloads. Use antivirus software to scan for and remove malware, and keep the software up to date to protect against new threats. Regularly applying operating system and software updates also helps prevent infections.
Virus and types of antivirus
The document discusses the history and types of computer viruses. It was created by Shabnam Bashir. The first known computer virus, called the Elk Cloner, was created in 1982 by Rich Skrenta. There are now over 287,524 known computer viruses as of February 2009. Common types include Trojan horses, worms, boot sector viruses, file viruses, and macro viruses. The document then lists symptoms of virus infection and recommendations for prevention.
Computer viruses
The document discusses computer viruses, including their history, how they spread, symptoms, and prevention methods. It notes that viruses are created by individuals to copy themselves and infect other computers. Today, 87% spread through the internet within hours or days. Symptoms include computers not booting, slowing down, or crashing. The best prevention methods involve using updated antivirus software, being cautious of unexpected files/attachments, and educating others to limit spread.
Lec 2 introduction to the internet security
This document discusses computer security goals and types of malware. It introduces the goals of computer security as confidentiality, integrity, and availability. Four common types of malware are described: viruses, worms, Trojan horses, and spyware. Antivirus software and firewalls are discussed as tools used to protect against malware threats. Antivirus works at the file level while firewalls control network traffic and connections at the protocol level.
Computervirus
Computer viruses are small programs that spread from computer to computer and interfere with operations. They are often spread through email attachments and can corrupt or delete files. To remove a virus, you can use an online scanner like Microsoft Safety Scanner or restart your computer in safe mode and run a scanner. In addition to viruses, other types of malware include Trojans, worms, and bacteria. Viruses can activate and potentially damage files in various ways like playing sounds, showing pictures, or formatting disks. It is important to have antivirus software and be cautious of suspicious files and downloads.
anti_virus
This document discusses computer viruses, anti-virus software, and how to prevent virus infections. It defines a computer virus as a program designed to spread from computer to computer and interfere with operations. Viruses are spread through email attachments and downloads. The document outlines different types of viruses and malicious software like worms, spam, and trojan horses. It also describes how anti-virus software works by scanning files and memory for virus signatures. Key recommendations include using anti-virus software, keeping it updated, and exercising caution when opening attachments or downloads.
Computer worms viruses and Prevention
This document summarizes a seminar presentation on computer worms, viruses, and prevention. It defines worms and viruses, describing how each infects computers and spreads. Worms replicate faster than viruses and don't typically infect files. Both can be prevented by regularly updating software, only opening expected email attachments, avoiding illegal downloads, and using antivirus software like Norton, McAfee, and Kaspersky. Antivirus software works by intercepting files during access or downloads and alerting the user if infections are found.
viruses
Computer security risks include viruses, worms, Trojan horses, and other malware that can damage systems. Viruses are programs that can replicate and spread from one computer to another, while worms copy themselves and spread without user interaction. Trojan horses appear to have useful functions but secretly perform unwanted actions. Antivirus programs identify and remove viruses, worms, and Trojan horses, and must be frequently updated. Firewalls, passwords, backups, and avoiding opening suspicious email attachments help protect against security risks.
Computer virus 1
a powerpoint silde to show simple idea what is computer virus.very basic suitable for class 6 students
Computer Viruses...................................................
This document discusses computer viruses, including what they are, their types, how they spread and the harm they can cause. It identifies the main types of viruses as boot viruses, program viruses and macro viruses. It also discusses the top sources of virus attacks, such as downloadable programs and email attachments, and recommends the best antivirus software like Norton antivirus, McAfee virus scan and Kaspersky antivirus to prevent virus attacks.
Computer virus
This document provides information about computer viruses presented by a student group. It defines a computer virus, describes common types of viruses like Trojans and worms, and explains how viruses infect systems. The document also outlines signs of a virus attack, how to create a virus for educational purposes only, and methods for protecting against and removing viruses like installing antivirus software and deleting suspicious files. The presentation aims to educate users about computer viruses and promoting safe computing practices.
Itc lec 15 Computer security risks
1. What is a computer security risk?
2. Virus
3. Trojan Horse
4. Worms
5. Stand-Alone Utility Programs
6. How can a virus spread through an e-mail message?
7. How does an antivirus program inoculate a program file
?
8. What is a firewall?
.
Computer virus 2
Anti-virus software is used to detect, remove, and protect against viruses and other malicious software like worms, trojans, and malware. Some key functions of anti-virus software include scanning files and folders for viruses, removing infected files, updating virus definitions, and providing real-time protection against new viruses.
2. What are the types of virus ?
Boot sector virus
Program virus
Stealth virus
Macro virus
Antivirus
What is anti-virus ?
How an anti-virus work?
Some of the symptoms of an infected computer !
Does Antivirus undamaged file.?!
What is the difference between Free & Paid Antivirus Software?
Some examples of antivirus software’s…
How to make a simple antivirus ?!
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Computer Viruses...................................................
Computer Viruses...................................................
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Computer security&smadav
This document provides instructions for protecting computers from viruses presented by Japan Overseas CooperationVolunteers NORI. It discusses what viruses are, how to protect computers by using antivirus software and scanning for viruses regularly. Instructions are given on how to scan computers and external storage devices like flash drives for viruses, and how to format flash drives to remove viruses, though formatting will delete all existing data on the drive. Recommendations are made to only install one antivirus program and to make backups before formatting drives.
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Publisher 2010 is a program for creating professional publications like brochures and newsletters. It provides tools for page layout, text formatting, image placement, and printing options. Key features include templates for different publication types, rulers and guides for object alignment, and options for print quality, paper selection, and electronic distribution. Publisher's interface includes the ribbon, backstage view for file options, and viewing tools to help with layout like rulers, baselines, and guides. Proper planning is important for page layout, paper choice, and print or electronic delivery method before starting a publication in Publisher.
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Security
- 1. What is Security? By Nori
- 2. What is a computer virus…? A virus is a program or programming code that replicates by being copied or initiating its copying to another program, computer boot sector or document. Microsoft
- 3. Behave Badly in computer Put Simply…
- 4. What are types of virus existed…? ・ Worms ・ Ransomware ・ Spyware ・ Botnets
- 5. How can we protect our PC…? Do not connect other person’s USB Do not open the file attached on the mail Anti-Virus Software Online Anti-Virus
- 6. Online Anti-Virus ・Eicar Test File ： 擬似ウイルスファイル http://www.eicar.org/85-0-Download.html ・TotalVirus ： Online Scan Site https://www.virustotal.com/ja/
- 7. Activity１ ～Download Eicar Test File～ 1. Access to Eicar.org 2. Click the “Eicar.com.txt”, and download the test file. ②
- 8. Activity２ ～Perform Online Scan～ 1. Access to VirusTotal 2. Choose “eicar.com.txt” 3. Scan the file ① ② ③