Many people don’t know how to protect their computers and don’t realize how easily you can get affected by virus, spyware, worms or malware. Unfortunately, the end users start worrying about their machines after they got hit by intruders and their computers become slow, irresponsible and start acting weird. However, if you want to be protected and keep your documents safe and secure you need to know the difference between those intruder types.
The basic definitions of the computer vulnerabilities are as follows:
Malware is malicious program or software written to damage your computer. Malware can consist of a variety of different threat vectors such viruses, worms, Trojan horses, spyware, adware, Rootkits and other malicious and undesirable software or program.
Virus is a computer program that can copy itself and infect another computer. The term “virus” is also commonly but erroneously used to refer to other types of malware, including but not limited to adware and spyware programs that do not have the reproductive ability. A true virus can spread from one computer to another (in some form of executable code) when its host is taken to the target computer; for instance because a user sent it over a network or the Internet, carried it on an external drive, or unintentionally spread it through email. Viruses can increase their chances of spreading to other computers by infecting files on a network file system or a file system that is accessed by another computer.
A worm is an evolved form of a virus. Like virus, worms too replicate and spread themselves but it happens on a bit larger scale. Also, unlike virus, a worm does not need a human action to replicate and spread and that’s what makes it more dangerous.
A worm always seeks for network loopholes to replicate from computer to computer and thus most common way of intrusion are emails and IM attachments. As the infection is network-based, a good firewall along with antivirus is necessary to control worm attack. Also, this means that blindly downloading email attachments or clicking the links friends share with you in a chat window isn’t recommended. Double-check before you do that.
Trojan horse or simply Trojan is a bit interesting. Trojan horse is a program that appears useful by pretending to do certain things in foreground, but in reality they are working silently in background with the only objective of harming your computer and/or stealing valuable information. Most common way to invite a Trojan horse to your computer is downloading malicious software like keys, cracks, free illegal music, wares etc from an unknown source. Thus the best way to stay away from Trojans is by making sure you install software from trusted sources.
Rootkits are programs that are designed by attackers to gain root or administrative access to your computer. Once an attacker gains admin privilege, it becomes a cakewalk for him to exploit your system. Most often, rootkits are used to control and not to destroy. Of course, this control could be used to delete data files, but it can also be used for more nefarious purposes.
Spywares are also malicious computer programs that can be installed on computers but unlike any of the above they don’t harm your computer in any way. Instead, they attack you! Once installed on a system they run in background and keep on collecting user’s personal data. These data can include your credit card numbers, passwords, important files and many other personal stuff. Spywares can track your keystrokes, scan and read your computer files, snoop IM chats and emails and God knows what else. Therefore again it’s always advisable to download and install software from trusted sources.
Advertising-supported software, is any software package which automatically plays, displays, or downloads advertisements to a computer. These advertisements can be in the form of a pop-up. The object of the Adware is to generate revenue for its author. Adware, by itself, is harmless; however, some adware may come with integrated spyware such as key loggers and other privacy-invasive software.
Overall, most of these malware are getting more and more complicated. Sometimes, even for professionals, is very difficult to detect and remove the complex viruses from the machine. However, there are so many anti-virus tools and tricks to detect the malware. The best way keeping your computer protected is to be careful from where you download your software and use anti-virus software all the time. In case that you need help or feeling that your computer is running slow feel free to contact us at any time. Click on this link and our support team would be happy to help you as quick as possible.
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