Tom Jose

Antivirus software is a utility that detect, prevent, and remove virus and other malware activity from a computer. Also, it protects users from malicious browser helper objects (BHOs), browser hijackers, ransomware, keyloggers, backdoors, rootkits, trojan horses, worms, malicious LSPs, dialers, fraudtools, adware and spyware etc. Most antivirus programs include an auto-update feature that permits the program to search the new viruses to kill them. Antivirus software typically runs as a background process, scanning computers, servers or mobile devices to detect and restrict the spread of malware. Many antivirus software programs include real-time threat detection and protection to guard against potential vulnerabilities as they happen, as well as system scans that monitor device and system files looking for possible risks. Antivirus security software can either be free or paid. There are some basic differences between free and paid versions of software. Free antivirus software mostly happen to be programmed to do signature-based detection, as per which malware detection happens matching signatures with an existing list of identified signatures. On the other hand, paid Antivirus Programs use the much more advanced heuristic technique to capture advanced threats as well. This would include even sophisticated zero-day threats. Paid antivirus programs work by executing malicious files in a virtual space, through sandboxing, an advanced method of containment. Anti-virus software is also known as an anti-virus program or a vaccine.