What Is The Definition Of Malware, Spyware, Adware, and Trojans ?

Many ask the question, “What is the definition of malware, spyware, adware and Trojans”?  Here is a little more about each and the damage that they can cause, without the owner ever knowing!

What is Malware ?

Malware is software designed to damage a computer system without the owner’s knowledge or consent.  Malware is short for malicious software and includes computer viruses, spyware, worms, and Trojan horses, or any other unwanted or malicious software.  It is not the same as software that has a legitimate purpose, but contains harmful bugs.  Malware is a crime and the most common path criminal’s use is through the internet, especially through e-mail and via the web.  Malware is being produced at an increasingly alarming rate.

What is Spyware ?

Spyware is a type of malware that can be installed on computers to collect information about users without their knowing.  Sometimes spywares are installed on business computers for the purpose of secretly monitoring employees; however the functions of spyware can extend well beyond monitoring though.  These programs can also collect personal information and change settings stored on a user’s computer.

What id Adware ?

Adware also known as advertising supported software is a software package that automatically plays or downloads advertisements to a computer after the software is installed on it or while the application is being used.  Some well known adware programs and toolbars include: AOL Instant Messenger, WeatherBug, VirusProtectPro, and Windows Live Messenger

What is Trojan or Trojan Horse ?

A Trojan or Trojan horse is a malware that is non-self-replicating that appears to perform a desirable function for the user, but instead facilitates unauthorized access to the person’s computer system.  This also makes it possible for hackers to access the computer remotely and perform various operations. A Trojan can be installed through a software download, websites containing executable content, or e-mail attachments.  Once installed, the Trojan can be used to perform spamming, data service, installation of software, or viewing the user’s screen.  Trojan malware is growing in popularity and accounts for 83% of the global malware.