Computer virus: Malware, Spyware, Adware
Malware, Spyware, Adware
Malware, a common term to computer users and especially to the computer experts use to mean a variety of annoying, intrusive and harmful program or codes to computers. Malware comes from the word ‘Malicious Software’, as the name implies it has something more or less extensive bad effects to the computer such as deny operation, interrupt normal activity, collecting personal information which causes loss of privacy. Some malicious programs are computer virus, spyware, Trojan horses, Rootkits, dishonest adware and many unwanted software. Spyware is such kind of malware that gathers user’s personal data, track user’s activity on internet and passes these to its source without user’s knowledge. Spywares are hidden installed software within the computer and difficult to detect. Typically a spyware installed in a computer by internet download or installing any software. Here it come another object that may also found during software installation or running is an ‘adware’ short form of ‘Advertising software’. This is a kind of application that holds advertising banners while program is running. It intends to do that because it often helps developer to recover developing cost and helps to holds down consumers cost. But often it includes some codes that are used to track user’s personal data and pass to third parties in absence of user’s authorization. In that case that is called dishonest adware which is unwanted.
So there are some differences among various malwares and that’s their activity. Yet I didn’t mention about computer virus which is very dangerous produced to destroy system and data, on the other hand Spyware does not do any harm rather than passes person data to third parties where adware do almost same but it displays advertisements related to what it find from spying on users.
How Spywares Malwares and Adware affect computer
As mentioned earlier the behaviors of malware spyware or others, they carry no good rather than worse to any computer system or to the user, that’s why they called malicious. Spyware is often encountered bundled within freeware or shareware software downloaded from internet. License agreement accompanied by the software which no one read warn the user that a spyware will be installed, so it installed with actually user’s permission. However these spyware slows down computer, as well as invasion of privacy. Some types of spyware are keyloggers, n-case, from fillers etc.
Since malware is a common term used to mean all unwanted programs here I mention overall affects of malware. Viruses are the most malicious type of malware attached them to software or document and it can be replicated themselves and become active when the particular software or document is executed. It spreads from one computer to another by that affected software or file.
Computer worms do the same as viruses do but they are stand-alone software. They could spread themselves so extent that they can become a part of boot process.
Trojan horses are such kinds of malware which disguise as innocuous to the user and make user tempt to install it, here it happens the same as we heard about ‘TROY’. Once they installed they show effect such as deleting user’s file, installing more malicious worms.
Adware are not malicious as it mentioned above but often people found negative behavior of adware. The most common problem with adware is its ability to pop-up from wherever it wants. Removing of adware is often seems more difficult, sometimes it is needed to reformate the hard disk and reinstall it again which most of the people are not wiling to do it. They also cause some spyware to be installed.
Ways to get rid of malwares, Spywares and Adware
In order to keep computer running smooth and ensure security of personal data and information it should control and remove spywares and malwares. There are some ways to control them and keep them away from computer. All above awareness is the first attempt to control spyware and malware. It should install a trustworthy anti-spyware or anti-virus program in the computer, so it always looks up system malwares. It also should avoid installing freeware or shareware files or software because most of the malware encounter by this means. If once your system got affect by heavy malware it should reformat PC. Before reformat it should have back up all important files and other documents in DVD or external hard disks.
Expert’s suggestion about spywares
Often experts are suggested not to use file sharing application because there is no other way to use them safely rather than affected by malwares. E-mails are one of the effective sources to catch by malwares; therefore experts suggested that it should not open attachments if you don’t know what this is. It should also be aware about physical media such as DVD, CD or flash drives which may contain malware or spyware, so before use these it should scan them thoroughly with anti-malware. Visiting safe websites is also a way to be malware free.
Most of the good common sense helps to maintain system malware free. You may find a lot of information about these online. Before installing a freeware software it should read license agreement if it intend to install a spyware or not. It is better to use latest anti-malware program though some antivirus program include anti-malware. Some trusted anti-virus and anti-malware are AVG, Microsoft security essential, Avira, Kaspersky, Norton, and NOD32.