Viruses are computer programs and their objective is alter the operation of the computer, without the user do not know. A computer virus is a type of software program, but they are malicious. These usually infect computer programs, other files on the system with the intention of modifying them to intentionally destroy files or data stored on your computer. It is said that the affected area is with a computer virus infected. There are some more harmless than others, that are characterized just by being annoying. Each year computer viruses cause billions of dollars of economic damage, due to causing system failure, corrupting data, etc..
There are a lot of ways that a computer can be infected or exposed to a virus. Some of there are:
- Messages left on social networks like Twitter or Facebook
- Attachments in email messages
- Suspicious websites
- Insert USBs, DVDs or CDs with viruses
- Download applications or internet programs
- False advertisements
- Attachments in email messages
- Suspicious websites
- Insert USBs, DVDs or CDs with viruses
- Download applications or internet programs
- False advertisements
Many users install anti-virus software and are designed to prevent, detect, or remove software viruses and other malicious programs. An antivirus software is one of the most important tools to protect your computer and your personal data. Antivirus software also needs to be updated regularly to recognize the latest threats. This is because malicious hackers and others are always creating new viruses.
What kind of damage can a virus do?
- Make a computer run slowly.
- Prevent computers from booting up.
- Damage parts of the system or modify how the system operates.
- Be used to steal personal details.
- Send out unauthorized messages.
- Move from machine to machine on a network.
- Damage your personal data or files.
Types of virus:
The Worms are programs which copy themselves to other computers on a network. They tend to slow things down as they consume more and more computer resources. The Trojans perform functions (sometimes malicious) on the computer without the knowledge of the user (Horse of Troy). The Malware are technically not classed as a virus. This software is used to spy on computer user's activities and collect personal information. More commonly known as "spyware".
The Worms are programs which copy themselves to other computers on a network. They tend to slow things down as they consume more and more computer resources. The Trojans perform functions (sometimes malicious) on the computer without the knowledge of the user (Horse of Troy). The Malware are technically not classed as a virus. This software is used to spy on computer user's activities and collect personal information. More commonly known as "spyware".
Steps for preventing viruses:
Preparation: includes making backups of all software (including operating systems) and making a contingency plan.
Prevention: includes creating user awareness, implementing hygiene rules, using disk authorisation software, or providing isolated 'quarantine' PCs.
Detection: involves the use of anti-virus software to detect, report and (sometimes) disinfect viruses.
Containment: involves identifying and isolating the infected items.
Recovery: involves disinfecting or removing infected items, and recovering or replacing corrupted data.
Preparation: includes making backups of all software (including operating systems) and making a contingency plan.
Prevention: includes creating user awareness, implementing hygiene rules, using disk authorisation software, or providing isolated 'quarantine' PCs.
Detection: involves the use of anti-virus software to detect, report and (sometimes) disinfect viruses.
Containment: involves identifying and isolating the infected items.
Recovery: involves disinfecting or removing infected items, and recovering or replacing corrupted data.
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