Which term is described by 'files matching known viruses for detection'?

• A. Signature Files
• B. Detection
• C. Remediation and Response
• D. Advanced Protection

Answer: (A)

Matching files to a database of known malware signatures is how detection of known threats works. Signature files are collections of known virus patterns—specific byte sequences, file hashes, or other identifiers—that uniquely identify malicious code. When the security engine scans files, it compares them against these signatures, and a match triggers detection, often leading to quarantine or removal. This approach is very effective for threats that have well-established definitions, but it relies on up-to-date signature databases to catch new variants. Other terms describe broader ideas: general detection covers recognizing malware without relying on exact patterns, remediation and response refer to actions taken after detection to clean and recover, and advanced protection includes more than signatures, such as heuristic or behavior-based methods to spot unknown or evolving threats.