Which scan technique detects known malware by matching signatures in the FortiGuard Labs database?

The scan technique that detects known malware by matching signatures in the FortiGuard Labs database is called Signature-Based Detection. This method relies on a database of known malware signatures; each signature is a unique string of data or a characteristic pattern associated with a specific malware sample. When a file or program is scanned, the signature-based detection system compares its contents against this database. If there’s a match, the malware is identified, allowing security systems to take appropriate action, such as quarantining or removing the malicious file.

Signature-based detection is effective for identifying known threats but may struggle with new, unknown malware variants that do not have established signatures. Thus, it is often used in conjunction with other detection methods, such as heuristic analysis and behavioral detection, to provide comprehensive security coverage.