Things you need to know about virus and antivirus

A computer virus is just as deadly for a computer as a virus that causes fatal infections in the human body. The lack of antivirus software in a computer may result in the entry of virus that starts spreading and ruining the machine. Antivirus is a software that detects virus in any existing and external file and removes the software virus to protect the computer from getting damaged by any virus.

What does a virus do?

A virus is a hidden code that can multiply and corrupt the necessary files and documents in the computer.

• Virus can slow a computer down
• It can prevent a computer from booting
• It can damage some parts of the computer system or change the way a system operates without making it known to others
• They can be used to steal data from other computers
• It moves from machine to machine creating a network
• Sends unauthorized messages
• Virus can hence be very dangerous for a computer, which makes it important for people to install antivirus software to prevent the misfortunes a virus would bring.

What are the different types of viruses?

Most viruses are meant to damage and corrupt the files in a computer, however not all viruses are meant for that purpose, some are even made to only steal or spy on data on other computers. Here are the essential types of virus mentioned below.

• Worms

These viruses copy themselves to other computing machines and make them slow by consuming a substantial amount of computer resources.

• Trojans

These virus programs are malicious and start to change the way some systems work without letting the user know about the change.

• Malware

Malware may not necessarily fit the definition of a virus as it does not corrupt or ruin a file of a computer, however, it is made to spy on other machines and collect the personal information. It is commonly known as spyware.

How does the best antivirus protect a PC?

• The main purpose behind the creation of antivirus software was to detect virus from a machine and remove it making the machine free from any virus and danger. The antivirus software not only detects and destroy the virus, they also prevent a computer from any external threat and keeps the files safe.
• Antivirus software scans the files of a computer and finds any virus that fit the description that is programmed in its virus dictionary.
• Antivirus software uses the method of heuristic analysis that helps in detecting any suspicious activity form any program that could be infected.
• Once detected, the software is then programmed to destroy the virus and clean the machine.

What are the 10 best antivirus companies?

A cyber attack or the virus attack on your computer can be disastrous. Once a computer is under the attack of a virus, it can be almost impossible to retain all the lost information. A popular antivirus software from a reputed company can prevent a situation where you are helpless. Here are the 10 best antivirus companies which you can consider for the protection of your computer system.

• Avast – Avast Business Antivirus Pro
• Symantec Corporation- Symantec Endpoint Protection
• Bitdefender – Bitdefender GravityZone Business Security
• Avira – Avira Antivirus for Endpoint
• Kaspersky – Kaspersky Endpoint Security Cloud
• Webroot – Webroot SecureAnywhere
• F-Secure – F-Secure Client Security Standard
• Sophos – Sophos Endpoint Protection Advanced
• McAfee- McAfee AntiVirus Plus
• ESET- ESET NOD32 Antivirus

Most of these software are easy to use and offer protected browsing, firewall, device control, user control, application control, data control (DLP), remote management, network protection, outbound firewall, identity and privacy shield, and patch management. The license period with most antivirus is for 1 year. Personal users or companies can test the antivirus as most of them come with a free trial for 30 days on an average.