Trojan Horses, Viruses, and Worms
July 28, 2008 by Antivirus Ware.com - Download Norton Antivirus software instantly!Malware is the combined terminology for malicious software and encompasses applications, programs or software that is designed for the sole purpose of harming one’s computer. Typically, the most common forms of malware are Trojan Horses, viruses, and worms. Even though Spyware (and sometimes adware) can also be classified as malware, this content focuses on the three forms of malware mentioned above.
Trojan Horses
When a computer application appears to perform one function but actually performs another function, such as transmitting a virus to your computer, this is a form of malware that is defined as a Trojan Horse or Trojan. Despite the fact that it may or may not be malicious, it usually involves a hidden code which is subversive in nature. Therefore, the program’s subversive nature relegates into the realm of malware.
Viruses
A computer program that is self-replicating (capable of copying itself) and infects or invades a person’s computer system without their knowledge is called a virus. It is a common error among computer users to refer to adware, malware, and Spyware as a virus. Additionally, not only can the original virus modify itself, but the modified copies can also modify themselves as well (metamorphic virus). A virus can only spread if the host gets directed to an uninfected computer. Antivirus programs, such as Norton Anti Virus software, are an effective way to combat Viruses.
Worms
Another self-replicating program without a user’s intervention is called a worm. Worms use networks to send copies of themselves to other computer terminals on the network. Worms differ from viruses in that they do not need to attach themselves to a particular program. Typically, they harm a computer network by consuming bandwidth whereas the typical virus corrupts or modifies files on a targeted computer.
