Uno dei miglior antivirus gratuiti senza bisogno di key, disponibile in varie lingue tra cui anche italiano, il più leggero antivirus in circolazione.
Moon Secure Antivirus aims to be the best Free, Open Source, Antivirus for Windows. It offers multiple scan engines, Net shield, Firewall, On access, on Exec scanner and rootkits preventions plus features from Commercial Antivirus applications. Moon Secure AV is currently using the clamav engine due to fast response time and huge AV database, however we are implementing another engine that is heuristic and will allow users to customize the engine on the fly. Unlike clam it has an enterprise level real-time scanner.