How Does Antivirus Work?
Antivirus is cybersecurity software that monitors, detects, and removes malicious software (malware) like viruses, worms, Trojans, ransomware, spyware, and more from devices and systems. This helps prevent data breaches and other cyber threats that can impact organizations of all sizes and types.
The best antivirus programs start with high detection rates based on results from independent labs. You also want the software to offer multiple layers of protection with configuration control and customization options. Look for behavioral detection, heuristics, exploit prevention, and cloud-based threat intelligence.
Virus Detection
Antivirus software works by scanning files and programs as they enter your computer or device, comparing them against a database of known viruses to identify malware. It also employs heuristic detection, which looks for characteristics or patterns that are common to certain types of malware. Most antivirus solutions also employ sandboxing, which allows suspicious files to be run in an isolated environment that’s separate from the rest of your system to determine if they act maliciously.
Once a virus is detected, the antivirus software will typically either quarantine or delete the file, removing it from your device and stopping it from spreading to other devices or computers. Some antivirus software can also perform a vulnerability scan, which identifies flaws in your Windows operating system or other programs that hackers could use to gain access to your network. This type of threat is particularly dangerous, as it could enable them to steal or destroy your data, create backdoors for remote access, or install other malicious software.