Useful for emergency situations where a virus might be blocking the installation of traditional security software. 3. Malware Signatures (Signature-Based) The most traditional form of antivirus software.
Instead of looking for a specific signature, it identifies software that behaves like a virus (e.g., trying to overwrite system files or hide its presence).
It saves system resources (RAM and CPU) and provides real-time updates on new threats without requiring massive local database downloads. 2. Standalone Antivirus