What’s the difference between Malware and Viruses?

This is a common question from most people that are new to cyber security. 

 

Malware is malicious software that can take on many forms. Malware is code that is designed to cause illegitimate harm to another computer, network or host system. Malware comes in a variety of types such as: worms, viruses, Trojans, bots, back doors, spyware, and adware to name a few.  

Viruses are a type of Malware that spreads by inserting a copy of itself into code or another program. As viruses spread from computer to computer they infect each device. Most all viruses are attached to an executable, which mean a virus can’t spread until a user activates the executable usually by downloading the executable from the web or an email. 

Other types of Malware include:

Worms: similar to viruses except worms are standalone software which do not require a host program or human’s help to propagate.

Trojans: are a form of malware that are hidden and usually provide a backdoor for other malware.

Bots: is derived from the word robot. A bot interacts with networks and gathers information in an automated manner. Bots are typically used in Denial of Service (DoS) attacks by sending spam or attempting to logon to systems so frequently that they overwhelm systems.

Spyware: is software that is designed to spy on computers. Usually they attempt to steal passwords or personal information.

 

 The most common ways to prevent malware from causing problems on your PC are to:

1. Use Antivirus software and install the latest releases.
2. Update your PC's operating systems to the latest releases.
3. Exercise caution when downloading files to your PC, opening unknown emails, or clicking on links from unfamiliar sources.