The Way Virus Spread
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Viruses can spread from computer to computer through removable media like disks and drives, or over networks and the internet. Worms can self-replicate without needing to be transferred, while trojans appear harmless but contain malicious code. Common computer viruses include Melissa, Kangen, and I Love You, and antivirus programs like AVG, Norton, and E Scan help detect and eliminate known viruses. It is important to learn about viruses to protect computers through up-to-date antivirus software, file backups, and safe online practices.
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- 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.
Demonstration Presentation
Computer viruses are malicious programs that can copy themselves and spread from one computer to another. Malware is harmful software installed without consent that can collect user information secretly. Computer worms are self-replicating programs that use networks to spread to other computers without needing user interaction. Antivirus software detects and removes malware like viruses, worms, and Trojan horses to protect computers.
Computer virus
A computer virus is a type of malicious software or malware that can replicate itself and spread by inserting copies of its code into other computer programs or files. When executed, the virus code can damage programs, delete files, or disrupt the operation of the computer. Viruses spread similar to biological viruses by making copies of themselves that get transferred to other computers or storage devices. Common symptoms of a virus infection include programs running slowly, unexpected computer behavior, and files being deleted or corrupted.
Computer Viruses
VIRUSES - types, how computer virus spreads, damages virus causes, some common viruses and preventions.
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.
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The document discusses different types of malware that can infect computer systems, including viruses, worms, Trojan horses, spyware, adware, and ransomware. It provides examples of how each type can negatively impact computers. Malware may enter systems through sharing files, visiting malicious websites, downloading files without caution, or installing software without reading agreements. Once inside, malware can slow systems down, use memory and disk space, steal information by capturing keystrokes, or block access to systems until a ransom is paid. The document also outlines specific types of computer viruses like macro viruses, boot sector viruses, memory resident viruses, and file infector viruses.
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The virus then spreads through the software or document that it is connected to via drives, networks, file-sharing applications, or virus-infected attachments to emails.
Read how to turn off malwarebytes notifications
Computer virus
This document defines and describes various types of computer viruses and malware. It explains that viruses are malicious programs that spread from device to device and can damage systems or steal data. Common types of viruses mentioned include boot sector viruses, file-infecting viruses, and macro viruses. The document also discusses malware, worms, Trojans, spyware, ransomware, rootkits, and backdoors. It provides tips for protecting systems with antivirus software, firewalls, and safe computing practices.
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This document discusses different types of computer viruses and how to prevent them. It defines viruses and explains how they spread by attaching to other program files or through external storage devices. Common symptoms of a virus are slow computer performance, low memory, and files being deleted. The presentation recommends using up-to-date antivirus software, enabling firewalls, and being cautious of email attachments to prevent virus infection. Various virus types are outlined, including boot sector viruses, program file viruses, macro viruses, and malware like worms and spyware.
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