Types of Malware and its Impact on Businesses

Types of Malware and its Impact on Businesses: “Malware” is short for “Malicious Software”- computer programs that are designed to infiltrate and damage computers without the user consent.

Malware is the general term covering all the different types of threats to your computer safety such as viruses, spyware, worms, trojans, rootkits and so on

These malicious programs can perform a variety of functions including stealing encrypting, or deleting sensitive data,altering or hijacking core computing functions and monitoring users’ computer activity without their permission.

How these malicious software come to your PC.

  1. Downloading corrupt or pirated files
  2. via spam E-mails
  3. Via not secured server,etc

Types of Malware

1. Virus(Vital Information Resources Under Seize)

Virus is a type of malicious software that, when executed, replicate itself by modifying other computer programs and inserting its own code. When this replication succeeds the affected areas are then said to be “infected” with computer virus

It infects our important files in our PC such as document files image files video files, audio files etc.


In 1983-84 Fred Cohen from the University of South California wrote this paper “Computer Viruses- Theory and Experiments”. It was the first paper to explicitly call a self-reproducing program a “virus”, a term introduced by Cohen’s mentor Leonard Adleman.

Creeper Virus- it was one of the first programs that resembled an internet worm. It ran on the old Tenex operating system on and moved through the APPANET, apredecessor of the current internet. Creeper caused infectedsystem to print the message “I’M THE CREEPER: CATCH ME IF YOU CAN” 

First virus to spread in PC was termed as ALK CLONER. Which was made by Rich Skrenta for Apple II(DOS 3.3)O.S..

2. Worms

These are more alike virus but they have the ability to make many clones of itself it means it goes on spreading to all betworks in contact.

It comes to your system via Email, Internet surfing, Downloading corrupt files from non trusted sites and as it has the ability to makes clone of itself, it fills your memory/disc space as a result of which your computer slows down

3. Trojan Horse

According to legends, Greek warriors hidden inside a wooden horse to infiltrate Troy.

In similar way many fake software which comes in form of  Trojan horse and on only affect your PC but also open gates for other viruses.

4. Ransomware

These are the types of malware which when installed in your computer, encrypts/lock your data and to decrypt/unlock these data we are asked to pay. and mostly these payments are done in bitcoin or in cryptocurrency, So that ransomware developer stays in safe side(couldn’t be caught).

5. Spyware

It is also one type of malware which is made in order to spy on yoru activities and data and send them to other person.

It gets installed as an attachment file of any unknown software.

It is made for a targeted person place or specific device

6. Adware

It is a software application which when run automatically advertisement banners pop-up-window shown in user interface.

It is usually seen in smart phones.

It happens when we download anything from not secured websites.

7. RootKit

These are one on=f the most dangerous and damaging type of malware because they are very hard to difficult and remove and provide almost complete access to the perpetrator. By installing this to the target system, a hacker can monitor on all activities, steel delete corrupt user data.

As it remain hidden in the system and hard to detect, a large number of cyber attacks around the world have been carried out using such types of malware.

Note:  The total cost of damage caused by malware in 2015 was about $500 billion, in 2019 that jumped to $2 trillion,it is expected to hit $6 trillion in 2021.

Impact of Malware on Business

Covid-19 has unearthen new cyber threats for businesses- The COVID-19 pandemic has forced bossinessto quickly support remote working practices. often without proper security measures in place.

The Verizon Fussiness Mobile Security Index (MSI) 2021 revels that many businesses may have left themselves vulnerable and open to cyber criminals in the in the rush to ensures their workforce could operate operate remotely.

49 % of businesses surveyed in the latest of Verizon’s MSI stressed that changes made to remote working practices during lockdown adversely affected their company’s Cyber Security

So, it has become very important to always updates your security in order to secure your valuable data

The antivirus with each update comes with new updated lists of malware and it informs you is such activities happen in your system as per their lists available so to tackle with this updating the antivirus is necessary.

Types of Malware and its Impact on Businesses

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