Skip to main content

Types of Computer Viruses and How to detect one

What exactly is a computer virus?

A computer virus is much like an infection virus, which is designed to spread from host to host and has the ability to clone or copy itself. However, an infectious virus cannot reproduce/replicate without a host cell. Similarly, computer viruses cannot replicate and disperse without a computer system.
In simple words, a computer virus is a destructive program that can replicate itself and infect a computer without the knowledge or authorization of the user or in technical terms, it is a type of malicious program or code written to change or modify the way a computer functions and operates. It has the ability to replicate and to attach itself to a legitimate program or another computer file.

Types of Computer Viruses one should watch out for and what they do?

Boot sector: This type of virus infects the boot sector of computers. During system boot, the virus is loaded in the main memory and destroys data stored on the hard disk or any storage device. They typically spread from removable media.

Overwrite: This kind of Virus is characterized by the fact that it removes the information contained in the files, rendering them partially or totally malfunctioning. There’s only one way to clean a file infected by this virus; it’s by deleting the file completely, hence losing the original data.
Multipartite: Multipartite viruses infect the master boot record (MBR) or the boot sector and also infects the program files. This virus typically has two parts; when it infects an executable file, it acts as an executable infector and when it infects a boot sector, it works as a boot sector infector. Such viruses come in through infected media and reside in the memory and then they move their way up to the boot sector of the hard drive.
Labels:

Comments

Post a Comment

Popular posts from this blog

What are the Technology bred Threats to Humanity In Today’s Era

While there have been many policies against deforestation, vehicles are still using way more natural oils and lessening the greenhouse effect and depletion of the ozone-layer for so long. But, it is not having the impact that it is supposed to. Furthermore, some of the humans are responsible for climate deterioration more than the others. And that includes industry and government people. Many policies against industrial waste have been created and are rolling-on for past few decades but don’t seem to be working against global warming. Why? It is because the rate of which we are depleting and consuming nature is not even close to the speed of maintaining the balance. These policies are not even a wall is close to being enough for stopping the rising oceans. On top of that, highly influential politicians stating that global warming is a hoax doesn’t help the earth’s deteriorating health. Read More
Post a Comment
Read more

3 Data Security Threats All Companies Face | Things to Consider in 2019

Cyber and Data Security Threats are the worst global threats today for businesses. Regardless of size, companies rely upon critical business data and sensitive information. Thus, companies need to be mindful of all potential risks to secure their networks in this new year. The  Cost of a Data Breach Study  (2018) by Ponemon with IBM Security’s sponsorship reports, a data breach’s average cost to be up by 6.4 per cent over its previous year to $3.86 million, globally. While the average cost for each stolen/lost record containing sensitive and confidential information also increased exponentially. Ransomware and Cybersecurity Vulnerabilities In 2019, ransomware will continue to be the main malware challenge for businesses and beyond. This includes Network Security threats and Software threats & vulnerabilities.  A  virus  is the first thing that comes across over minds with the term “Cyber Security”. Malware opens the door to all of your sensitive d...
Post a Comment
Read more

How Does Natural Language Processing (NLP) help Chatbots?

NLP is an interesting tool that helps break down the semantics of natural language such as English, Spanish, German, etc. to individual words. It then deciphers the intent of the input using various combinations of these words and responds appropriately. This piece of technology has been put to use by many organizations across the globe, and you might not even understand when you are interacting with a machine because it seems very human-like, but is very efficient and there is a very minute lag in terms of responses. Quicker responses help keep customers happy with the speedy resolution of issues and hence eventually result in more business and a boost to the top line. Read More:
Post a Comment
Read more