Designed for a low footprint, fast scanning, it packs security features and customization options for consistent and personalized security on- or offline. ESET NOD32 Antivirus is built on ESET's unique heuristic technology that identifies viruses that have never been seen before. This enables them to protect your computer proactively, in real-time, against new viruses and cyber threats that conventional signature-based antivirus products don't catch.