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Updating virus protection software

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However, this method can also generate false-positive matches when antivirus software detects a program behaving similarly to a malicious program and incorrectly identifies it as a virus.Antivirus software may also use behavior-based detection to analyze an object's behavior or potential behavior for suspicious activities and infers malicious intent based on those observations.

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On Campus Faculty and staff can contact their local computing support for help in obtaining and installing anti-virus software on UCI machines. There are many available from most computer stores, office supply stores, and the UCI Computer Store.This makes antivirus software itself a common target for attackers, and researchers have discovered remote code execution and other serious vulnerabilities in antivirus software products in recent years.Antivirus software is distributed in a number of forms, including stand-alone antivirus scanners and internet security suites that offer antivirus protection, along with firewalls, privacy controls and other security protections.Some experts believe that as many as 11% of Internet-connected computers have been infected with viruses and other "virus-scan" that allow them to be remotely controlled by cyber-criminals.One common function of this malware is to record keys that are typed on the computer and then forward collected information to central locations for analysis and distribution.Some viruses cause network wide problems and we need to block your computer to contain the problem.

If your computer is blocked, you should receive a warning Web page when you try to use a browser on campus.

With the number of new malware signatures increasing at around 10 million per year as long ago as 2011, modern signature databases may contain hundreds of millions, or even billions, of entries, making antivirus software based solely on signatures impractical.

However, signature-based detection does not usually produce false positive matches.

Heuristic-based detection uses an algorithm to compare the signatures of known viruses against potential threats.

With heuristic-based detection, antivirus software can detect viruses that haven't been discovered yet, as well as already existing viruses that have been disguised or modified and released as new viruses.

While some operating systems are targeted more frequently by virus developers, antivirus software is available for most OSes: Antivirus software uses a variety of virus detection techniques.