Computer Virus Presentation PDF

COMPUTER VIRUS  PRESENTED BY : EMAN SHARJEEL SHAH  PRESENTED TO MAM AYESHA  SUBJECT COMPUTER SCIENCE  TABLE OF CONTENT : 1. Introduction of computer virus. 2. Types of computer virus. 3. How viruses spread. 4. Symptoms of a virus infection....

COMPUTER VIRUS  PRESENTED BY : EMAN SHARJEEL SHAH  PRESENTED TO MAM AYESHA  SUBJECT COMPUTER SCIENCE  TABLE OF CONTENT : 1. Introduction of computer virus. 2. Types of computer virus. 3. How viruses spread. 4. Symptoms of a virus infection. 5. Prevention from computer virus.  INTRODUCTION :  A virus is a program that may disturb the normal working of a computer without the knowledge and permission of the user.  Virus attaches itself to the files in flash drives, hard disks and email attachments.  A file containing a virus is called infected files  HOW VIRUS SPREAD ?  Email Attachments: Opening infected files.  Infected Software Download: Downloading malicious software.  Infected Websites: Visiting compromised websites.  USB Drives: Transferring virus through removable devices.  SYMPTOMS OF A VIRUS INFECTION : Slow System Performance Data Loss and Corruption Displaying Adds System Lockout  PREVENTION FROM COMPUTER VIRUS : Install Antivirus Software Regularly Update Operating System and software Avoid Suspicious Emails and Attachments Use Strong Passwords Back up Important Data  TYPES : 1. ADWARE 2. WORMS 3. SPYWARE  1. ADWARE : Adware, short for "advertising-supported software," is a type of software that automatically displays or downloads advertisements to a computer or mobile device. While not classified as a virus in the traditional sense, adware can be considered a form of malware, as it often operates without the user's consent and can affect the performance of the device.  2. WORMS : A worm is a type of malicious software (malware) that replicates itself in order to spread to other computers. Unlike a virus, which attaches itself to a host file or program and requires user action to spread (like opening an infected file), a worm is standalone and can self-replicate without any human intervention.  3. SPYWARE : Spyware is a type of malicious software (malware) designed to gather information about a person or organization without their knowledge. It operates secretly in the background and can collect various types of data, including browsing habits, personal information, passwords, and financial details. Here are some key points to understand spyware: