MantaRay Forensics provides refined VirusShare.com hash sets by utilizing known hash values from NSRL and HashSets.com to minimize false positive hash matches during forensic investigations.  They are converted to Autopsy, EnCase, RAW (e.g. Magnet's AXIOM) and XWays format. The hash sets are provided quarterly with updates between the major releases to keep the refined hash set current.  Please reference the website for more information:  http://bit.ly/MRHashSets.