In 2001, Tomasz Kojm released the first version of ClamAV, the first ever open source antivirus engine to be commercialised. In 2007, ClamAV was bought by Sourcefire,[53] which in turn was acquired by Cisco Systems in 2013.[54]
In 2007, AV-TEST reported a number of 5,490,960 new unique malware samples (based on MD5) only for that year.[48] In 2012 and 2013, antivirus firms reported a new malware samples range from 300,000 to over 500,000 per day.[56][57]
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Following the 2013 release of the APT 1 report from Mandiant, the industry has seen a shift towards signature-less approaches to the problem capable of detecting and mitigating zero-day attacks.[66] Numerous approaches to address these new forms of threats have appeared, including behavioral detection, artificial intelligence, machine learning, and cloud-based file detonation. According to Gartner, it is expected the rise of new entrants, such Carbon Black, Cylance and Crowdstrike will force EPP incumbents into a new phase of innovation and acquisition.[67] One method from Bromium involves micro-virtualization to protect desktops from malicious code execution initiated by the end user. Another approach from SentinelOne and Carbon Black focuses on behavioral detection by building a full context around every process execution path in real time,[68][69] while Cylance leverages an artificial intelligence model based on machine learning.[70] Increasingly, these signature-less approaches have been defined by the media and analyst firms as "next-generation" antivirus[71] and are seeing rapid market adoption as certified antivirus replacement technologies by firms such as Coalfire and DirectDefense.[72] In response, traditional antivirus vendors such as Trend Micro,[73] Symantec and Sophos[74] have responded by incorporating "next-gen" offerings into their portfolios as analyst firms such as Forrester and Gartner have called traditional signature-based antivirus "ineffective" and "outdated".[75]
Independent testing on all the major virus scanners consistently shows that none provides 100% virus detection. The best ones provided as high as 99.9% detection for simulated real-world situations, while the lowest provided 91.1% in tests conducted in August 2013. Many virus scanners produce false positive results as well, identifying benign files as malware.[134] 2ff7e9595c
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