Malware, short for Malicious Software, is generally defined as a kind of computer contaminant which disrupts the smooth functioning of your computer. It can be in varied forms ranging from viruses, worms, Trojans and many more.
Unlike faulty softwares which are meant for constructive applications but tend to be disruptive due to some of the unattended bugs in them, malware are especially designed for these purposes. Malwares are also used for illegal tracking of online activity of the users and accessing the personal information on the infected PCs.
The history for development of malwares dates long back and was done just as a prank or for experimental purpose. But in today’s world, Malware development is widespread, and execution has become a major part of the world black marketing business.
They are also used on common individuals to obtain their personal information like social security numbers, credit card and debit card numbers etc.
Along with them, in certain cases, even the government makes use of malwares for some of their operations. They are used many-a-times for obtaining secretive or guarded information.
With the widespread of the broadband Internet, Malware attack on personal computers has increased considerably. They first affect a PC, otherwise known as host PC, which is then used for sending spam emails, seeding torrents, spreading porn films and other illegal activities.
Types of Malware
Basically there are three kinds of malwares that attack the computers:
This term is generally related with malwares. Malwares in common layman terms are referred to as viruses only. Technically virus is a Malware which spreads through any form of file:- executable, doc etc.
Viruses only affect your computer when the affected file is opened by the user. Without the execution of these files, the spread of virus is not possible.
They are the kind of Malware that does not require the presence of any file for its spread. The passage of a worm over any network happens in the backdrop. Considering the way worms spread, they are a lot more hazardous than viruses.
They act as gateways for the smooth spread of the above mentioned malwares. In simple terms, a Trojan is software which lures the user to install it which then further smoothly facilitates the intrusion of other viruses and worms into your computer.
This is a recent developed category. These programs are intended to display unwanted advertisements, to look upon the users’ web browsing history, or redirect associate marketing revenues to the spyware developer.
The spreading pattern of spywares is different from viruses; they are usually installed by utilizing security holes.
How to Protect Your Computer from Malwares?
The protection from these malwares has also developed as a major business. Numerous anti-viruses and anti-malwares are available in the market and they acts as real time scanner for all the activities of the operating system.
These softwares act in a similar way to the malwares attacking your PC. Exception given that they work with the consent of the user. The anti-malware software scans the activities of operating system and decides whether each action is legitimate or not.
For the activities not decided as legitimate, the anti-malware immediately stops the execution of the activity and seals the programs and files related to it. All these activities slow down the processing of the operating system, but you computer remains protected from any kinds of intrusions.
This default program provided by the operating system helps in blocking the external file downloading, depending upon the legitimacy of the source from where it is being taken.
There are various ways by which the malwares can attack the source files of the system. The basic anti-virus program works by studying these paths of attack or intrusion and blocking them accordingly.
With the constant developments in Malware market across the world, there are loads of new paths developing per second. The anti-virus companies, though trying to cope up with this development speed of these malwares, have not yet succeeded in giving total protection against all malwares.
Along with these, special firewalls are also developed by certain companies to protect the extremely secretive information from leaking or illegal modifications. These firewalls, unlike the conventional ones do not work on the principal of blockage, but on the principal of passage. There are limited items which can pass through these firewalls. Rest all objects are blocked from passage.