This is part 2 of the Safe Surfing Guide series. You may check other parts as well for a complete safe surfing guide.
Malware includes all malicious software. Some examples are: computer viruses, worms, trojan horses, spyware, adware, and rootkits. The purpose of malware is to steal some information from your computer or to gain unauthorized access of your computer. Normally, in the computer security industry, we classify them into virus and malware.
Just like antivirus software, there is anti-malware software. Most antivirus software has some capabilities to scan and remove malware, especially rootkits, worms and trojan horses. But for adware, spyware, most of the time, you need anti-malware software.