High Quality Content by WIKIPEDIA articles! Hitman Pro 3 is a computer program to detect and remove Rootkits, Trojans, Viruses, Worms, Spyware, Adware and other Malware using extensive Behavioural Analysis and Cloud Computing. The program is developed by SurfRight. First it detects viruses and other files that have a suspicious behaviour (behaviour analysis) and sends them then to the scan cloud via the Internet. The malicious files are detected in the scan cloud where these are removed by Hitman Pro 3. The new version of Hitman Pro, version 3, uses Dr Web, Emsisoft Anti-Malware, G Data AntiVirus and Prevx to detect malicious software (see also multiscanning). As the various virus scanners are not installed on the local computer, but in the scan cloud on Internet, there is a very low system load. This technology is called “cloud computing” and is possible using behavioural analysis that can differentiate legitimate from malicious software.