General Defination of Virus, Trojan, Malware, Rookit, Exploits, Wabbit, Backdoor.

Some general definations are here to better understand the differance between some harmful n unwanted names in any PC. Reed to better understand them

Do you have a Virus?

Are you infested with pop-up ads, new toolbars in your browser, is your home page changed or are you bombarded with irritating spam? Perhaps your computer is running very slow or worst, you can't get on the internet. If so, your PC is most likely infected with adware, anti adware, spyware, spybot, trojans, viruses or another internet parasite. Viruses won't go away anytime soon! More than 60,000 viruses have been identified, and new viruses are created every day, according to the International Computer Security Association.

What is a Trojan?

A Trojan is malware that performs unexpected or unauthorized, often malicious,
actions. The main difference between a Trojan and a virus is the inability to
replicate. Trojans cause damage, unexpected system behavior, and compromise the security of systems, but do not replicate. If it replicates, then it should be
classified as a virus. A Trojan, coined from Greek mythology's Trojan horse,
typically comes in good packaging but has some hidden malicious intent within its code. When a Trojan is executed users will likely experience unwanted system problems in operation, and sometimes loss of valuable data.


What is Malware?

Malware, short for malicious software, refers to any malicious or unexpected program or code such as viruses, and trojans. What is Spyware? Spyware is short for advertising supported software (Adware). Software that sends information about your internet habits back to the computer from which it's launched. Spyware is often built into free downloads and works in the background without a user's knowledge .Since it doesn't record an individual's personal information, it's often used to create marketing profiles based on surfing habits. Why is it called "Spyware"? While this may be a great concept, the downside is that the advertising companies also install additional tracking software on your system, which is continuously sending your tracking information over the internet. While according to the privacy policies of the companies, there will be no sensitive or identifying data collected from your system and you shall remain anonymous, it still remains the fact, that you have a "live" server sitting on your PC that is sending information about you and your surfing habits to a remote location.

What is a Rootkit?

A Rootkit is the hardest virus to detect. It is designed to hide in the computers
core processes making it difficult to detect. It often requires a complete wiping of
the hard drive and reinstalling the original operating system. What is a Dialer?
Dialers can be costly. A black hat hacker can use a dialer to dial those expensive
telephone numbers in small countries or to transmit stolen data.

What are Exploits?

Exploits are what keeps Bill Gates and Microsoft up late at night. Hackers try to
find flaws in Windows to bypass security so they can get access to your computer.

Service Pact 2 is an example of a patch that is used to correct a flaw in Windows. Is

Spyware illegal? Even though the name may indicate so, spyware is not an illegal type of software in any way. However there are certain issues that a privacy oriented user may object to and therefore prefer not to use the product. This usually involves the tracking and sending of data and statistics via a server installed on the user's PC and the use of your Internet connection in the background. These tools are perfectly legal in most places, but, just like an ordinary tape recorder, if they are abused, they can seriously violate your privacy.