antivirus

Antivirus software (abbreviated to AV software), also known as anti-malware, is software intended to prevent, detect, and remove malware.
Antivirus software was originally developed to detect and remove computer viruses, hence the name. However, with the proliferation of other malware, antivirus software started to protect against other computer threats. Some products also include protection from malicious URLs, spam, and phishing.

View More On Wikipedia.org