Panda Cloud Antivirus is a cloud-based antivirus. The new version includes two separate behavioural engines, an advanced heuristics engine, autorun and USB vaccination, advanced configuration options and automatic and transparent upgrades. Panda Cloud Antivirus consists of a lightweight antivirus agent that is connected in real-time to PandaLabs' online Collective Intelligence servers to protect faster against the newest malware variants while barely impacting PC performance. CNET Editor's Note: The Download Now link will download a small installer file to your desktop. Remain online and double-click the installer to proceed with the actual download.