computer virus
•Download as DOCX, PDF•
0 likes•188 views
This document discusses different types of computer viruses, including boot sector infectors. A boot sector infector virus inserts itself into the boot sector of a disk so that when the computer boots up, the virus gains control and can infect the system. It can be difficult to remove a boot sector virus if it encrypts the boot sector. Users need continually updated antivirus software to detect and safely remove boot sector viruses, and may need to reformat the hard drive if the virus cannot be fully removed or has caused too much damage.
Report
Share
Report
Share
Recommended
Program Threats
This document discusses various types of program threats including logic bombs, viruses, worms, and trojan horses. It focuses on viruses, defining them as code fragments embedded in legitimate programs that can spread via email or macros. The document categorizes viruses and provides examples, noting that file viruses append to files, boot sector viruses infect boot sectors, macro viruses spread through documents, and polymorphic/encrypted viruses aim to avoid detection. In summary, it defines computer viruses, explains how they spread, and outlines several categories of viruses along with examples.
What is Spyware?
Spyware is a type of malware that
install in a computer, and then
collects small pieces of information
about users without their
knowledge.
Cryptovirology - by Malathi
Cryptovirology is the application of cryptography techniques to create viruses. It involves encrypting a virus to make it difficult to detect using signatures. A cryptovirus typically encrypts data on a system, then encrypts the key and holds the data for ransom until payment is received. This poses challenges for anti-virus software as encrypted viruses are hard to identify. Cryptography allows viruses to communicate covertly and increases their ability to survive. Countermeasures like regular software and backup updates can help, but cryptoviruses remain a threat as antivirus vendors work to develop defenses against this evolving tactic.
information about virus
A computer virus is a malicious program that can replicate itself and spread from one computer to another without permission. The first known computer virus was called "Brain", discovered in 1986. It infected the boot sector of floppy disks and hard drives, overwriting the master boot record so that the virus's code would run whenever the computer was booted up. Modern antivirus software aims to detect and remove viruses and other malware threats from computers.
The Malware Menace
Viruses and spyware can infect computers through email attachments, websites, and removable drives. Viruses spread software without permission and spyware monitors users' activities. Adware displays unwanted pop-up ads through programs that claim to do one thing but do another. Users can avoid malware by practicing common sense online safety like avoiding random website clicks, not installing unknown software, and running regular antivirus scans.
Virus & Worms(20120628)
It describes the basic Difference between viruses and worms and also the prevention techniques from them in a very easy way and simple language. Also describes the symptoms of system when affected by viruses and worms. Also has some examples of those.
Avast! antivirus protection
Avast! is a freemium antivirus program available for Windows, Mac, and Linux that uses signatures, heuristics, file emulation, and a public malware database for detection. It provides protection at no cost with a simple interface but as a free program may not catch everything and false positives can occur. Performance impacts include around 12MB of memory usage and a 34 minute full system scan for a 122GB drive. Renewals are free of charge.
Computer Virus
This document discusses computer viruses including their definition, types, lifecycle, and how to prevent and remove them. A virus is a small software program that can replicate itself and interfere with computer operations without the user's consent. There are three main types: viruses, worms, and Trojan horses. A virus's lifecycle involves infecting a host computer, replicating itself, and then transmitting to other computers. Symptoms of infection include programs taking longer to load or drive lights flashing unexpectedly. To prevent viruses, users should update antivirus software, avoid suspicious emails or downloads, and back up their data regularly.
Recommended
Program Threats
This document discusses various types of program threats including logic bombs, viruses, worms, and trojan horses. It focuses on viruses, defining them as code fragments embedded in legitimate programs that can spread via email or macros. The document categorizes viruses and provides examples, noting that file viruses append to files, boot sector viruses infect boot sectors, macro viruses spread through documents, and polymorphic/encrypted viruses aim to avoid detection. In summary, it defines computer viruses, explains how they spread, and outlines several categories of viruses along with examples.
What is Spyware?
Spyware is a type of malware that
install in a computer, and then
collects small pieces of information
about users without their
knowledge.
Cryptovirology - by Malathi
Cryptovirology is the application of cryptography techniques to create viruses. It involves encrypting a virus to make it difficult to detect using signatures. A cryptovirus typically encrypts data on a system, then encrypts the key and holds the data for ransom until payment is received. This poses challenges for anti-virus software as encrypted viruses are hard to identify. Cryptography allows viruses to communicate covertly and increases their ability to survive. Countermeasures like regular software and backup updates can help, but cryptoviruses remain a threat as antivirus vendors work to develop defenses against this evolving tactic.
information about virus
A computer virus is a malicious program that can replicate itself and spread from one computer to another without permission. The first known computer virus was called "Brain", discovered in 1986. It infected the boot sector of floppy disks and hard drives, overwriting the master boot record so that the virus's code would run whenever the computer was booted up. Modern antivirus software aims to detect and remove viruses and other malware threats from computers.
The Malware Menace
Viruses and spyware can infect computers through email attachments, websites, and removable drives. Viruses spread software without permission and spyware monitors users' activities. Adware displays unwanted pop-up ads through programs that claim to do one thing but do another. Users can avoid malware by practicing common sense online safety like avoiding random website clicks, not installing unknown software, and running regular antivirus scans.
Virus & Worms(20120628)
It describes the basic Difference between viruses and worms and also the prevention techniques from them in a very easy way and simple language. Also describes the symptoms of system when affected by viruses and worms. Also has some examples of those.
Avast! antivirus protection
Avast! is a freemium antivirus program available for Windows, Mac, and Linux that uses signatures, heuristics, file emulation, and a public malware database for detection. It provides protection at no cost with a simple interface but as a free program may not catch everything and false positives can occur. Performance impacts include around 12MB of memory usage and a 34 minute full system scan for a 122GB drive. Renewals are free of charge.
Computer Virus
This document discusses computer viruses including their definition, types, lifecycle, and how to prevent and remove them. A virus is a small software program that can replicate itself and interfere with computer operations without the user's consent. There are three main types: viruses, worms, and Trojan horses. A virus's lifecycle involves infecting a host computer, replicating itself, and then transmitting to other computers. Symptoms of infection include programs taking longer to load or drive lights flashing unexpectedly. To prevent viruses, users should update antivirus software, avoid suspicious emails or downloads, and back up their data regularly.
Anti virus
This document discusses anti-virus software. It begins with an introduction to anti-virus software and what it is used for. Then it discusses the history of anti-virus software and how it originated in response to early computer viruses and malware. It also covers different types of anti-virus software like firewalls, network layer firewalls, proxy servers, and application layer firewalls. It describes how anti-virus software works to identify, prevent and remove malware like viruses, adware, and spyware. Common types of anti-virus detection methods are also summarized such as signature-based detection, heuristics, rootkit detection, and real-time protection.
Network virus detection & prevention
This document discusses network viruses and strategies for virus detection and prevention. It defines viruses, worms, and Trojan horses and explains how they differ. It then covers various virus spreading strategies and types, including binary, script, macro, boot sector, and worm viruses. The document also discusses detection methods like signature-based and heuristic detection. For prevention, it recommends keeping antivirus software and signatures updated to identify new viruses. Memory demands of antivirus software are also discussed.
Computer infections and protections(final)
This document discusses computer infections like viruses, worms, and trojans. It describes viruses as programs that can copy themselves and infect other computers. Worms search for and implant code onto other systems through networks. Trojans appear harmless but later present malicious functions. The document also outlines protections like antivirus software, firewalls, and user education recommendations.
Antivirus - Virus detection and removal methods
This document discusses viruses and antivirus software. It defines a computer virus as a program that can infect other programs. It then discusses various sources of viruses, types of viruses, and what antivirus software is. The document outlines two main methods that antivirus uses to identify viruses: signature-based detection, which compares files to known virus signatures; and heuristic-based detection, which uses general patterns to detect unknown viruses. It provides details on how each method works and their respective advantages and limitations.
Introduction to computer virus
Malware is malicious software designed to damage or disrupt computers and networks. It includes viruses, worms, Trojans, and bots. Viruses attach themselves to other files and programs to spread. They can damage data, software, and systems. Common types of viruses include boot viruses, TSR viruses, file-infecting viruses, macro viruses, and multipartite viruses. Worms and Trojans are also types of malware. Basic safety measures can help prevent malware attacks, like firewalls, updating software, antivirus programs, and strong passwords.
Computer Virus
This document discusses computer viruses, including what they do, how to detect them, different types of malicious software and viruses, how viruses spread, how to remove viruses, how antivirus software works to prevent viruses, and tips to prevent malware infection. It provides an index of topics covered on slides 3 through 16, with keywords including malicious, harmful, destructive, detection, removal, antivirus, and prevention.
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.
Mobile virus & worms
This document presents information on mobile viruses and worms. It defines various related terms like viruses, worms, and trojan horses. It discusses the motivations for creating viruses and characteristics of viruses. It provides an overview of different types of viruses and worms. It examines the attack vectors like Bluetooth, WiFi, SMS that mobile malware uses. It outlines the harms caused by mobile malware like financial loss, sending private information. It discusses protection and prevention mechanisms like keeping Bluetooth in non-discoverable mode and installing antivirus software. It examines case studies of early mobile worms like CABIR and COMWAR.
Antivirus PPt
A computer virus is a type of malicious software program that can copy itself and spread from one computer to another. Viruses often disguise themselves as legitimate programs or documents to infect users' computers without their knowledge. Once installed, viruses can damage programs, delete files, display unwanted messages, or slow computers by clogging memory. To avoid detection, viruses may kill antivirus tasks before scanning can occur. Antivirus software works by scanning files for known virus signatures and behaviors. It is important to keep antivirus software up to date, avoid opening suspicious email attachments, only download files from trusted sources, and back up files regularly to prevent virus damage.
Virus & Anti Virus ppt
The document provides an overview of viruses and anti-viruses. It discusses how the first computer virus was created in the 1980s. It then describes common virus symptoms, different types of viruses like macro viruses and worms, and challenges with virus detection. The document also outlines how antivirus software works using virus dictionaries and behavior monitoring. It notes issues like performance impacts, potential automatic renewals, and limitations with detecting new viruses.
Viruses, worms, and trojan horses
A computer virus attaches to code or files and spreads when the infected file is run, potentially corrupting or deleting files. A worm replicates itself across a network without needing an infected file, consuming bandwidth. A Trojan horse appears benign but hides malicious code. Security procedures include plans and testing to address threats, and antivirus software detects and removes viruses, worms and Trojans, requiring frequent updates. Data encryption and firewalls can also help protect networks and traffic through ports.
Antivirus ppt
This document discusses different types of malware and protection methods. It covers the damages viruses can cause like displaying unwanted messages or deleting files. It then explains antivirus software detects and removes viruses and worms. Antispyware protects against unwanted programs and slow performance from spyware. Anti-worm software protects against self-replicating worms, while anti-trojan horse software detects and removes trojan horses and repairs damage. The document also notes John McAfee invented antivirus software in 1987.
Viruses, Worms And Trojan Horses
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.
Computer virus presenatation
This document discusses types of computer viruses like boot infecting viruses and file infecting viruses. It explains that viruses can format disks, delete or rename files, and copy themselves. Some signs of a virus are sluggish performance, programs taking longer to load, and decreasing disk space. It recommends using antivirus software to prevent infections, blocking illegal access, and being cautious of unnecessary interrupts. The conclusion is that safe practices like antivirus use and user education are needed since completely secure systems do not exist.
Presentation on virus
ier, computer in education, dhaka university, educational technology, introduction to computer, bangladesh education , protik ray, education computer
Sanmi's first pp
This document summarizes computer viruses, including their origin, symptoms, types, and prevention. It discusses how viruses are programs that can damage computers by spreading and destroying files. Common virus types are boot sector, macro, multipartite, polymorphic, email worms, and Trojan horses. Symptoms of infection include slow performance, crashing, and file/directory loss. The best prevention is installing antivirus software, practicing safe computing habits, and avoiding unknown programs and email attachments. Antivirus software works by scanning for known virus signatures or flagging unusual activity.
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 ?!
Informative news about an anti virus progra1
This document discusses rootkits and the importance of using additional rootkit detection software alongside traditional antivirus programs. It explains that rootkits can hide from antivirus programs by intercepting system calls. While Microsoft has created their own rootkit detection tool, it has limitations. The document promotes a software called UnHackMe, which claims to boot the operating system before any rootkits can load, allowing it to safely detect and remove rootkits where other programs fail. UnHackMe is presented as a complementary solution to antivirus that provides more complete protection against viruses and rootkits.
Computer viruses and antiviruses PPT
A computer virus is a malicious program that can copy itself and infect computers without permission. It spreads when an infected computer is connected to uninfected ones, such as via a network or removable storage. There are different types of viruses that infect different parts of a computer system. Malware is a broader term that includes viruses as well as other malicious software like spyware, adware, worms, and trojans. Anti-virus software uses techniques like signature matching, sandboxing, and heuristics to identify and remove viruses and other malware from an infected system. Users should practice safe computing habits and use anti-virus software to help prevent and remove virus infections.
Computer viruses and anti viruses
This document summarizes a seminar presentation on computer viruses and antiviruses. It defines different types of viruses like email viruses, worms, and Trojan horses. It also discusses what computer systems viruses can infect, like the system sector or macro files. The document outlines antivirus software functions like scanning, integrity checking, and interception. It provides guidelines for safe computing practices and approaches that antivirus software uses to detect viruses, like signatures, sandboxing, and heuristics. The conclusion emphasizes the importance of antivirus protection and dealing safely with infections.
More Related Content
What's hot
Anti virus
This document discusses anti-virus software. It begins with an introduction to anti-virus software and what it is used for. Then it discusses the history of anti-virus software and how it originated in response to early computer viruses and malware. It also covers different types of anti-virus software like firewalls, network layer firewalls, proxy servers, and application layer firewalls. It describes how anti-virus software works to identify, prevent and remove malware like viruses, adware, and spyware. Common types of anti-virus detection methods are also summarized such as signature-based detection, heuristics, rootkit detection, and real-time protection.
Network virus detection & prevention
This document discusses network viruses and strategies for virus detection and prevention. It defines viruses, worms, and Trojan horses and explains how they differ. It then covers various virus spreading strategies and types, including binary, script, macro, boot sector, and worm viruses. The document also discusses detection methods like signature-based and heuristic detection. For prevention, it recommends keeping antivirus software and signatures updated to identify new viruses. Memory demands of antivirus software are also discussed.
Computer infections and protections(final)
This document discusses computer infections like viruses, worms, and trojans. It describes viruses as programs that can copy themselves and infect other computers. Worms search for and implant code onto other systems through networks. Trojans appear harmless but later present malicious functions. The document also outlines protections like antivirus software, firewalls, and user education recommendations.
Antivirus - Virus detection and removal methods
This document discusses viruses and antivirus software. It defines a computer virus as a program that can infect other programs. It then discusses various sources of viruses, types of viruses, and what antivirus software is. The document outlines two main methods that antivirus uses to identify viruses: signature-based detection, which compares files to known virus signatures; and heuristic-based detection, which uses general patterns to detect unknown viruses. It provides details on how each method works and their respective advantages and limitations.
Introduction to computer virus
Malware is malicious software designed to damage or disrupt computers and networks. It includes viruses, worms, Trojans, and bots. Viruses attach themselves to other files and programs to spread. They can damage data, software, and systems. Common types of viruses include boot viruses, TSR viruses, file-infecting viruses, macro viruses, and multipartite viruses. Worms and Trojans are also types of malware. Basic safety measures can help prevent malware attacks, like firewalls, updating software, antivirus programs, and strong passwords.
Computer Virus
This document discusses computer viruses, including what they do, how to detect them, different types of malicious software and viruses, how viruses spread, how to remove viruses, how antivirus software works to prevent viruses, and tips to prevent malware infection. It provides an index of topics covered on slides 3 through 16, with keywords including malicious, harmful, destructive, detection, removal, antivirus, and prevention.
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.
Mobile virus & worms
This document presents information on mobile viruses and worms. It defines various related terms like viruses, worms, and trojan horses. It discusses the motivations for creating viruses and characteristics of viruses. It provides an overview of different types of viruses and worms. It examines the attack vectors like Bluetooth, WiFi, SMS that mobile malware uses. It outlines the harms caused by mobile malware like financial loss, sending private information. It discusses protection and prevention mechanisms like keeping Bluetooth in non-discoverable mode and installing antivirus software. It examines case studies of early mobile worms like CABIR and COMWAR.
Antivirus PPt
A computer virus is a type of malicious software program that can copy itself and spread from one computer to another. Viruses often disguise themselves as legitimate programs or documents to infect users' computers without their knowledge. Once installed, viruses can damage programs, delete files, display unwanted messages, or slow computers by clogging memory. To avoid detection, viruses may kill antivirus tasks before scanning can occur. Antivirus software works by scanning files for known virus signatures and behaviors. It is important to keep antivirus software up to date, avoid opening suspicious email attachments, only download files from trusted sources, and back up files regularly to prevent virus damage.
Virus & Anti Virus ppt
The document provides an overview of viruses and anti-viruses. It discusses how the first computer virus was created in the 1980s. It then describes common virus symptoms, different types of viruses like macro viruses and worms, and challenges with virus detection. The document also outlines how antivirus software works using virus dictionaries and behavior monitoring. It notes issues like performance impacts, potential automatic renewals, and limitations with detecting new viruses.
Viruses, worms, and trojan horses
A computer virus attaches to code or files and spreads when the infected file is run, potentially corrupting or deleting files. A worm replicates itself across a network without needing an infected file, consuming bandwidth. A Trojan horse appears benign but hides malicious code. Security procedures include plans and testing to address threats, and antivirus software detects and removes viruses, worms and Trojans, requiring frequent updates. Data encryption and firewalls can also help protect networks and traffic through ports.
Antivirus ppt
This document discusses different types of malware and protection methods. It covers the damages viruses can cause like displaying unwanted messages or deleting files. It then explains antivirus software detects and removes viruses and worms. Antispyware protects against unwanted programs and slow performance from spyware. Anti-worm software protects against self-replicating worms, while anti-trojan horse software detects and removes trojan horses and repairs damage. The document also notes John McAfee invented antivirus software in 1987.
Viruses, Worms And Trojan Horses
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.
Computer virus presenatation
This document discusses types of computer viruses like boot infecting viruses and file infecting viruses. It explains that viruses can format disks, delete or rename files, and copy themselves. Some signs of a virus are sluggish performance, programs taking longer to load, and decreasing disk space. It recommends using antivirus software to prevent infections, blocking illegal access, and being cautious of unnecessary interrupts. The conclusion is that safe practices like antivirus use and user education are needed since completely secure systems do not exist.
Presentation on virus
ier, computer in education, dhaka university, educational technology, introduction to computer, bangladesh education , protik ray, education computer
Sanmi's first pp
This document summarizes computer viruses, including their origin, symptoms, types, and prevention. It discusses how viruses are programs that can damage computers by spreading and destroying files. Common virus types are boot sector, macro, multipartite, polymorphic, email worms, and Trojan horses. Symptoms of infection include slow performance, crashing, and file/directory loss. The best prevention is installing antivirus software, practicing safe computing habits, and avoiding unknown programs and email attachments. Antivirus software works by scanning for known virus signatures or flagging unusual activity.
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 ?!
Informative news about an anti virus progra1
This document discusses rootkits and the importance of using additional rootkit detection software alongside traditional antivirus programs. It explains that rootkits can hide from antivirus programs by intercepting system calls. While Microsoft has created their own rootkit detection tool, it has limitations. The document promotes a software called UnHackMe, which claims to boot the operating system before any rootkits can load, allowing it to safely detect and remove rootkits where other programs fail. UnHackMe is presented as a complementary solution to antivirus that provides more complete protection against viruses and rootkits.
Computer viruses and antiviruses PPT
A computer virus is a malicious program that can copy itself and infect computers without permission. It spreads when an infected computer is connected to uninfected ones, such as via a network or removable storage. There are different types of viruses that infect different parts of a computer system. Malware is a broader term that includes viruses as well as other malicious software like spyware, adware, worms, and trojans. Anti-virus software uses techniques like signature matching, sandboxing, and heuristics to identify and remove viruses and other malware from an infected system. Users should practice safe computing habits and use anti-virus software to help prevent and remove virus infections.
Computer viruses and anti viruses
This document summarizes a seminar presentation on computer viruses and antiviruses. It defines different types of viruses like email viruses, worms, and Trojan horses. It also discusses what computer systems viruses can infect, like the system sector or macro files. The document outlines antivirus software functions like scanning, integrity checking, and interception. It provides guidelines for safe computing practices and approaches that antivirus software uses to detect viruses, like signatures, sandboxing, and heuristics. The conclusion emphasizes the importance of antivirus protection and dealing safely with infections.
What's hot (20)
Viewers also liked
VMware Paravirtualization
1) The document discusses three main techniques for virtualizing the x86 CPU: full virtualization using binary translation, OS-assisted virtualization (paravirtualization), and hardware-assisted virtualization.
2) Full virtualization using binary translation allows any x86 OS to run virtualized without modification but has more overhead than other techniques. Paravirtualization requires OS modifications to replace privileged instructions but has lower overhead. Hardware assistance traps privileged instructions to the hypervisor with less overhead but was rigid in early implementations.
3) The document compares the techniques and notes that VMware uses all three, balancing performance and functionality for different workloads and hardware.
Dspace الدليل العملي لتنصيب
دليل تنصيب نظام بناء المستودعات الرقيمة ديسبيس على الخادم المحلي في بيئة نظام التشغيل ويندوز 7. اعداد الاستاذ الدكتور طلال ناظم الزهيري
Virtualization VMWare technology
Virtualization is a technology that allows multiple operating systems and applications to run on a single physical machine simultaneously. It provides a layer of abstraction between the physical hardware and the applications running on top of it. The document discusses concepts of virtualization like partitioning, full virtualization, paravirtualization, and VMware's product portfolio for data center, desktop, and mobile virtualization.
Virtualization
Virtualization allows multiple operating systems to run simultaneously on a single computer by transforming hardware into software. It works by installing a virtualization layer, either using a bare-metal hypervisor that does not require an operating system or a hosted hypervisor that runs as an application on an operating system. Each operating system runs within an isolated virtual machine, which appears like a separate computer to users but shares the physical resources of the host computer. Different types of virtualization include full, para, and OS-level virtualization. Virtualization enables server consolidation and transformation of physical servers for multiple applications.
Viewers also liked (10)
Similar to computer virus
Virus
This document discusses different types of computer viruses, including boot sector viruses, browser hijackers, direct action viruses, file infector viruses, macro viruses, multipartite viruses, polymorphic viruses, resident viruses, and web scripting viruses. It also provides tips on how to prevent viruses from entering computers, such as using antivirus software and firewalls, only accessing trusted websites, and regularly scanning for viruses. The document advises that if a computer is infected, it should be disconnected from networks and the internet and antivirus software should be used to clean the system.
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.
Computer virus
The document discusses different types of computer viruses, including:
- Boot sector viruses, which infect the boot sector of storage devices and spread via floppy disks.
- File infector viruses, which infect executable files and spread when those files are executed.
- Macro viruses, which infect documents like Microsoft Excel files and spread macros.
- Multipartite viruses, which can spread in multiple ways and have different payloads depending on conditions.
- Polymorphic viruses, which mutate their code with each execution to avoid detection.
- Resident viruses, which insert themselves into system memory and run independently of infected files.
- Website viruses, which can infect computers through malicious or unintentionally infected code on
Compter virus and its solution
This document defines malware and describes common types like viruses, trojans, worms, spyware, and adware. It explains that malware is hostile software installed without consent that can harm systems. Viruses replicate by inserting copies into other programs and files, while trojans and worms spread automatically but don't replicate on their own. Spyware and adware track users' online activities and display unwanted ads. The document also outlines how antivirus software uses virus definitions and behavior monitoring to detect and remove malware, and provides examples of popular antivirus programs.
What are Computer Viruses.pdf
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 viruses
This document discusses computer viruses and anti-virus packages. It defines malware and viruses, explaining that viruses attach themselves to files and programs to spread. It describes different types of viruses like boot viruses, macro viruses, multipartite viruses, and file infecting viruses. Viruses can damage systems in various ways like interrupting use, modifying settings, and destroying data. The document recommends using antivirus software, firewalls, strong passwords, and updating systems to prevent virus infections.
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
Virus and antivirus final ppt
This document discusses malware and provides information about common types of malware like viruses, trojans, worms, spyware, and adware. It then discusses antivirus and anti-spyware software that can be used to protect systems from malware by identifying, removing, and preventing malware infections. Regularly updating antivirus software and scanning systems is recommended to keep systems secure from evolving malware threats.
Computer virus (Microsoft Powerpoint)
Computer viruses are programs that spread from one computer to another and can damage computers. They are often spread through email attachments which run programs that then infect the computer. It's important to have antivirus software installed and to avoid opening suspicious attachments. Once infected, viruses need to be removed as soon as possible using antivirus scanners to prevent further damage.
Introductions To Malwares
This document provides an overview of different types of malware including viruses, worms, Trojans, and backdoors. Viruses can damage or delete files while replicating themselves. Worms replicate endlessly without damaging files. Trojans masquerade as legitimate programs but provide unauthorized access. Backdoors bypass authentication to remotely access systems. The document describes characteristics and examples of each type as well as how they infect systems.
Presentation2
A computer virus is a malicious computer program that can copy itself and spread without permission. It can infect computers by being transferred through email attachments, files on removable drives like USBs, or by exploiting vulnerabilities in network file sharing systems. While some viruses only replicate and spread, others are programmed to damage systems by deleting files or reformatting hard drives. Anti-virus software uses virus signatures and heuristics to detect known and unknown viruses, helping to prevent and remove infections. However, users must still regularly update their software and operating systems to patch new vulnerabilities exploited by viruses.
virus 2014 more design 2014
This document provides information about computer viruses, how they spread, and their types. It explains that computer viruses are malicious programs that can replicate themselves and spread from one computer to another through email attachments, downloads, or infected files. Viruses can corrupt or delete files on a computer. The document outlines different types of viruses like overwrite viruses, boot viruses, and worms. It also lists some common symptoms of an infected computer like slow performance, missing files, error messages, and printing issues. It advises the reader to avoid opening unknown email attachments, get an antivirus program, and use online virus removal tools if infected.
Internet security
This document discusses various topics relating to computer and internet security. It defines common cyber threats like viruses, malware, spyware and provides tips on using antivirus software, firewalls, and strong passwords to enhance security. Specific myths about internet safety are debunked, such as thinking certain browsers are more secure or that only downloads can infect a device. Overall, the document stresses the importance of maintaining updated software, using caution online, and employing security measures like unique, complex passwords to help protect devices and information.
11 virus vs. antivirus
Computer viruses are malicious programs that can damage systems by replicating themselves and infecting other files. Antivirus software works to detect and remove viruses using techniques like scanning files against a dictionary of known viruses and monitoring programs for suspicious behaviors. However, antivirus software has limitations as well, such as not detecting new viruses immediately, potentially reducing system performance, and occasionally containing unwanted advertising software.
FCS Presentation.pptx
This document discusses computer viruses, including how they spread, different types of viruses, signs of infection, preventions, and virus removal. It defines a computer virus as malicious code that replicates by copying itself to another program or document. The document outlines several types of viruses like file infectors, macro viruses, overwrite viruses, and boot sector viruses. It also provides tips for preventing virus infection through firewalls, patching, and antivirus software, as well as steps for removing a virus through safe mode and virus scanning.
Sowmya
Computer viruses are malicious software programs that spread from one computer to another without permission. They can corrupt or delete files, use email to spread, and even erase entire hard drives. Viruses are often spread through email attachments, downloads, and infected removable media. It's important to have updated antivirus software, practice safe email/web habits, and only run as a standard user to help prevent virus infections. Common types of viruses include overwrite viruses that delete file contents, boot viruses that infect startup sectors, and worms that self-replicate and are difficult to remove. Infected computers may run slowly, have missing or corrupted files, experience errors, or have other abnormal behaviors. The first steps when detecting a possible virus are to install
Cybersecurity
Antivirus software uses techniques like malware signatures, system monitoring, and machine learning to detect and remove viruses, malware, and other threats from computers. Key types include boot sector viruses, web scripting viruses, browser hijackers, and macro viruses. Popular antivirus programs provide multiple layers of protection through features like encryption, data backup, password security, and firewalls. 360 Total Security is an antivirus program that employs engines from Bitdefender and Avira to detect threats through heuristics and cloud-based scanning. It protects against risks like ransomware and unauthorized webcam access.
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?
.
Virus and malware presentation
Viruses and malware can damage computers. Viruses spread by copying themselves, while malware is designed to access or harm devices without owner knowledge. Common malware includes adware, bugs, rootkits, Trojans, and ransomware. It is important to use updated antivirus software, strong passwords, firewalls, and be cautious of suspicious links and downloads to protect devices from viruses and malware.
Viruses notes
Computer viruses are malicious programs that can copy themselves and spread from one computer to another without permission. They infect files and can cause damage like deleting data or overwriting files. Antivirus software uses different techniques like real-time protection, on-demand scanning, automatic updates, and file quarantining to detect, remove, and prevent viruses from infecting computers. Common types of viruses include macro viruses, boot viruses, polymorphic viruses, and Trojan horses which can have various harmful effects if not addressed by antivirus protection.
Similar to computer virus (20)
Recently uploaded
Driving Business Innovation: Latest Generative AI Advancements & Success Story
Are you ready to revolutionize how you handle data? Join us for a webinar where we’ll bring you up to speed with the latest advancements in Generative AI technology and discover how leveraging FME with tools from giants like Google Gemini, Amazon, and Microsoft OpenAI can supercharge your workflow efficiency.
During the hour, we’ll take you through:
Guest Speaker Segment with Hannah Barrington: Dive into the world of dynamic real estate marketing with Hannah, the Marketing Manager at Workspace Group. Hear firsthand how their team generates engaging descriptions for thousands of office units by integrating diverse data sources—from PDF floorplans to web pages—using FME transformers, like OpenAIVisionConnector and AnthropicVisionConnector. This use case will show you how GenAI can streamline content creation for marketing across the board.
Ollama Use Case: Learn how Scenario Specialist Dmitri Bagh has utilized Ollama within FME to input data, create custom models, and enhance security protocols. This segment will include demos to illustrate the full capabilities of FME in AI-driven processes.
Custom AI Models: Discover how to leverage FME to build personalized AI models using your data. Whether it’s populating a model with local data for added security or integrating public AI tools, find out how FME facilitates a versatile and secure approach to AI.
We’ll wrap up with a live Q&A session where you can engage with our experts on your specific use cases, and learn more about optimizing your data workflows with AI.
This webinar is ideal for professionals seeking to harness the power of AI within their data management systems while ensuring high levels of customization and security. Whether you're a novice or an expert, gain actionable insights and strategies to elevate your data processes. Join us to see how FME and AI can revolutionize how you work with data!
20240609 QFM020 Irresponsible AI Reading List May 2024
Everything I found interesting about the irresponsible use of machine intelligence in May 2024
20240607 QFM018 Elixir Reading List May 2024
Everything I found interesting about the Elixir programming ecosystem in May 2024
Taking AI to the Next Level in Manufacturing.pdf
Read Taking AI to the Next Level in Manufacturing to gain insights on AI adoption in the manufacturing industry, such as:
1. How quickly AI is being implemented in manufacturing.
2. Which barriers stand in the way of AI adoption.
3. How data quality and governance form the backbone of AI.
4. Organizational processes and structures that may inhibit effective AI adoption.
6. Ideas and approaches to help build your organization's AI strategy.
Generating privacy-protected synthetic data using Secludy and Milvus
During this demo, the founders of Secludy will demonstrate how their system utilizes Milvus to store and manipulate embeddings for generating privacy-protected synthetic data. Their approach not only maintains the confidentiality of the original data but also enhances the utility and scalability of LLMs under privacy constraints. Attendees, including machine learning engineers, data scientists, and data managers, will witness first-hand how Secludy's integration with Milvus empowers organizations to harness the power of LLMs securely and efficiently.
みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
ここ3000字までしか入らないけどタイトルの方がたくさん文字入ると思います。
Skybuffer SAM4U tool for SAP license adoption
Manage and optimize your license adoption and consumption with SAM4U, an SAP free customer software asset management tool.
SAM4U, an SAP complimentary software asset management tool for customers, delivers a detailed and well-structured overview of license inventory and usage with a user-friendly interface. We offer a hosted, cost-effective, and performance-optimized SAM4U setup in the Skybuffer Cloud environment. You retain ownership of the system and data, while we manage the ABAP 7.58 infrastructure, ensuring fixed Total Cost of Ownership (TCO) and exceptional services through the SAP Fiori interface.
AI 101: An Introduction to the Basics and Impact of Artificial Intelligence
Imagine a world where machines not only perform tasks but also learn, adapt, and make decisions. This is the promise of Artificial Intelligence (AI), a technology that's not just enhancing our lives but revolutionizing entire industries.
Columbus Data & Analytics Wednesdays - June 2024
Columbus Data & Analytics Wednesdays, June 2024 with Maria Copot 20
GraphRAG for Life Science to increase LLM accuracy
GraphRAG for life science domain, where you retriever information from biomedical knowledge graphs using LLMs to increase the accuracy and performance of generated answers
Programming Foundation Models with DSPy - Meetup Slides
Prompting language models is hard, while programming language models is easy. In this talk, I will discuss the state-of-the-art framework DSPy for programming foundation models with its powerful optimizers and runtime constraint system.
June Patch Tuesday
Ivanti’s Patch Tuesday breakdown goes beyond patching your applications and brings you the intelligence and guidance needed to prioritize where to focus your attention first. Catch early analysis on our Ivanti blog, then join industry expert Chris Goettl for the Patch Tuesday Webinar Event. There we’ll do a deep dive into each of the bulletins and give guidance on the risks associated with the newly-identified vulnerabilities.
HCL Notes and Domino License Cost Reduction in the World of DLAU
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
Building Production Ready Search Pipelines with Spark and Milvus
Spark is the widely used ETL tool for processing, indexing and ingesting data to serving stack for search. Milvus is the production-ready open-source vector database. In this talk we will show how to use Spark to process unstructured data to extract vector representations, and push the vectors to Milvus vector database for search serving.
Ocean lotus Threat actors project by John Sitima 2024 (1).pptx
Ocean Lotus cyber threat actors represent a sophisticated, persistent, and politically motivated group that poses a significant risk to organizations and individuals in the Southeast Asian region. Their continuous evolution and adaptability underscore the need for robust cybersecurity measures and international cooperation to identify and mitigate the threats posed by such advanced persistent threat groups.
TrustArc Webinar - 2024 Global Privacy Survey
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
Recently uploaded (20)
Driving Business Innovation: Latest Generative AI Advancements & Success Story
Driving Business Innovation: Latest Generative AI Advancements & Success Story
20240609 QFM020 Irresponsible AI Reading List May 2024
20240609 QFM020 Irresponsible AI Reading List May 2024
Generating privacy-protected synthetic data using Secludy and Milvus
Generating privacy-protected synthetic data using Secludy and Milvus
みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
AI 101: An Introduction to the Basics and Impact of Artificial Intelligence
AI 101: An Introduction to the Basics and Impact of Artificial Intelligence
GraphRAG for Life Science to increase LLM accuracy
GraphRAG for Life Science to increase LLM accuracy
Programming Foundation Models with DSPy - Meetup Slides
Programming Foundation Models with DSPy - Meetup Slides
HCL Notes and Domino License Cost Reduction in the World of DLAU
HCL Notes and Domino License Cost Reduction in the World of DLAU
Building Production Ready Search Pipelines with Spark and Milvus
Building Production Ready Search Pipelines with Spark and Milvus
Ocean lotus Threat actors project by John Sitima 2024 (1).pptx
Ocean lotus Threat actors project by John Sitima 2024 (1).pptx
WeTestAthens: Postman's AI & Automation Techniques
WeTestAthens: Postman's AI & Automation Techniques
computer virus
- 1. ITGS224 Information security مركوس طارق نورهان Nourhan Markus
- 2. I don’tknow what is that computer virus ?! I'll tell you ;) It’s a program or codethat is written by Professional programmer It’s loaded onto your computer without you know ! This viruses may also replicate themselves *_* and more en more that They can spread by email or by inserting copies of itself into other programs or documents .. Etc. All of this was in general There are types of computer viruses, including the : o Boot sector infectors o Executable infectors o Multipartite viruses o TSR viruses o Stealth viruses o Encrypted viruses o Polymorphic viruses o Macro viruses
- 3. Boot sector infectors It’s a virus that Infects the first section of a hard drive or floppy disk and inserts itself into the bootsectorof a disk. The first known virus of this type was called Brain. Exactly you should be know how is it works ! Let’s see .. A bootsectorinfector virus places its starting codein the bootsector. When the computer tries to read and execute the program in the bootsector, the virus goes into memory where it can gain control over basic computer operations From memory.
- 4. Logically by protectyour bootsector. But how ? this is the question .. Removing a bootsector virus can be difficult because it may encrypt the bootsector that is why the Protection is very important here ! In many cases, users may not even be aware they have been infected with a virus until they run an antivirus protection program or malware scan. As a result, it is critical for users to rely on continually updated virus protection programs that have a large registry of bootviruses and the data needed to safely remove them. If the virus cannot be removed due to encryption or excessive damage to existing code, the hard drive may need reformatting to eliminate the infection