Computer Virus ppt.pptx

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This PPT is about Computer Virus and its prevention Technique
1. What is computer virus
2. Types of computer virus
3. How to prevent computer from Virus
4. Antivirus
5. Types of antivirus

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B.Ed course / MCA/BCA/ BBA/BCOM/MCOM/M.Ed etc.

1. Computer virus & Its Prevention By- Pragati Kachhi(Assistant Professor at Baba Saheb Ambedkar University under department KMRO ) UGC-NET Qualified CTET Qualified AWES Qualified MP-TET Qualified Content :- Computer virus Types of virus How to prevent computer from virus Antivirus & types

2. A computer virus is a type of computer program that, when executed, replicates itself by modifying other computer programs and inserting its own code. If this replication succeeds, the affected areas are then said to be "infected" with a computer virus, a metaphor derived from biological viruses. A computer virus is  a type of malicious software, or malware, that spreads between computers and causes damage to data and software . Computer viruses aim to disrupt systems, cause major operational issues, and result in data loss and leakage. What is computer virus :-

3. Symptoms The hard disk run out it space . The computer does not boot. Computer system becomes slow. Display unwanted massage. Prevention:- Do not share drive C without password and without read only restriction. Use antivirus & delete all email attachment. Have multiple backup of files Use more secure operating system ex. Unix /Linux .

4. How Does Virus Affect? By downloading files from the Internet. During the removable of media or drives. Through pen drive. Through e-mail attachments. Through unpatched software & services. Through unprotected or poor administrator passwords. 5 Common Ways of Getting a Computer Virus Opening Links in Emails from Unknown Senders. This is probably the most effective way of disseminating malware. ... Downloading Malware from Untrustworthy Sites. ... Clicking Online Ads. ... Social Media Scams. ... Software that Hasn't Been Patched Properly.

5. Types of Virus:- Worms This is a computer program that replicates itself at a swift pace. Unlike a computer virus, it is self-contained and hence does not need to be part of another program to propagate itself. Trojan Horse A Trojan Horse is also a sort of destructive program that remains disguised in a normal software program. It is not exactly a virus, as it cannot replicate itself. However, there is possibility that virus program may remain concealed in the Trojan Horse. Bombs It is similar to Trojan Horse, but Logic bombs have some specialty; these include a timing device and hence it will go off only at a particular date and time. Browser Hijacker Easily detected, this virus type infects your browser and redirects you to malicious websites. . Web Scripting Virus This sneaky virus disguises itself in the coding of links, ads, images, videos, and site code. It can infect systems when users download malicious files or visit malicious websites.

6. What is malware? Malware is an umbrella term for any piece of software that has  malicious intent . There are several types of malware and each of them has a unique way of infiltrating your computer which may include attempts at gaining unauthorized control of your computer systems, stealing your personal information, encrypting your important files, or causing other harm to your computers. Sometimes the damage can be irrevocable. Where does malware come from? Some of the most common sources of malware are email attachments, malicious websites, torrents, and shared networks. Phishing  – Emails can be disguised to be coming from a fraudulent company for the sole purpose of getting you to reveal personal information. Malicious Websites  – Some websites may attempt to install malware onto your computer, usually through popups or malicious links. Torrents  – Files shared through BitTorrents are generally unsafe because you never know what to expect until they’re downloaded. Shared Networks  – A malware-infected computer on the same shared network may spread malware onto your computer

7. Types Of Virus

8. Here’s a list of the common types of malware and their malicious intent:- Trojans:- A Trojan (or Trojan Horse) disguises itself as legitimate software with the purpose of tricking you into executing malicious software on your computer. 2. Spyware:- Spyware invades your computer and attempts to steal your personal information such as credit card or banking information, web browsing data, and passwords to various accounts. 3. Adware Adware is unwanted software that displays advertisements on your screen. Adware collects personal information from you to serve you with more personalized ads. 4. Rootkits Rootkits enable unauthorized users to gain access to your computer without being detected. 5. Ransomware Ransomware is designed to encrypt your files and block access to them until a ransom is paid. 6. Worms A worm replicates itself by infecting other computers that are on the same network. They’re designed to consume bandwidth and interrupt networks. 7. Keyloggers Keyloggers keep track of your keystrokes on your keyboard and record them on a log. This information is used to gain unauthorized access to your accounts.

9. Impact of Virus:- Let us now see the impact of virus on your computer system − Disrupts the normal functionality of respective computer system. Disrupts system network use. Modifies configuration setting of the system. Destructs data. Disrupts computer network resources. Destructs of confidential data. Virus Detection:- The most fundamental method of detection of virus is to check the functionality of your computer system; a virus affected computer does not take command properly. However, if there is antivirus software in your computer system, then it can easily check programs and files on a system for virus signatures.

10. Virus Preventive Measures:- Installation of an effective antivirus software. Patching up the operating system. Patching up the client software. Putting highly secured Passwords. Use of Firewalls. Most Effective Antivirus:- McAfee Antivirus Plus Symantec Norton Antivirus Avast Pro Antivirus Bitdefender Antivirus Plus Kaspersky Anti-Virus Avira Antivirus Webroot Secure Anywhere Antivirus Emsisoft Anti-Malware Quick Heal Antivirus ESET NOD32 Antivirus

11. Antivirus software is  a set of programs that can prevent, detect, remove, and search for different viruses or other malware software like worms, trojan, adware, etc . Basically, the computer devices use this software but, it also works on networks and IT systems. Net Protector Total Security:- Net Protector defends your Office Network from all viruses, worm and spyware attacks and keeps your business lifeline, Network and PCs, running smoothly and securely. Total Security Net Protector Total Security provides you multilayered protection. Ensures smooth, fast internet connection and surfing. Reduces Unwanted Traffic. Real-time Protection stops the viruses before they reach your Personal Computer, keeping your Applications and Data safe. Complete security solution for home users. Antivirus

12.         Antivirus & Anti-Malware Multilayered protection against all types of viruses.         Behavior Heuristic Control Detects & Blocks Ransomware actions in the system with different heuristic rules.         Ransomware LAN Shield Protects data in the system, even if the infection is originated at some other endpoints in the network.         Firewall Monitors & blocks all malicious incoming & outgoing internet connections.         Data Backup Automatically, backups your recently edited Documents for safe keeping against any corruption or ransomware.         Anti-phishing Blocks fraudulent bank look-alike pages & login credential stealing links.         Advertise Blocker Protects from malicious Adware & saves internet bandwidth, CPU, Memory.         Anti-Ransomware Shield Blocks new, unknown Ransomware which corrupt & encrypt data files.         Automatic Updates Updates antivirus in the background automatically every hour as connected to internet.         Parental Control Ensure appropriate and safe usage of Internet, applications and devices for your child through NPAV's Parental Control.

13. By getting a Norton® Secured Seal, you get a scheduled Symantec® Malware Scan daily, which  automatically shields the site from any chance of getting infected by malicious software . Norton AntiVirus Plus enables you to  scan your computer for malware, spyware, ransomware, and viruses . It offers a Quick Scan option or a comprehensive Full System Scan, as well as the ability to scan custom locations to find and remove threats. Website :- https://us.norton.com/blog/malware/what-is-antivirus Antivirus software helps protect your computer against malware and cybercriminals. Antivirus software looks at data — web pages, files, software, applications — traveling over the network to your devices. It searches for known threats and monitors the behavior of all programs, flagging suspicious behavior. It seeks to block or remove malware as quickly as possible.

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