A virus signature is
|“||an algorithm or hash that uniquely identifies a specific virus. A virus signature is like a fingerprint in that it can be used to detect and identify specific viruses. Anti-virus software uses the virus signature to scan for the presence of malicious code.||”|
|“||[a]lterations to files or applications indicating the presence of a virus, detectable by virus scanning software.||”|
- Home Computer Security - Glossary (full-text).
- Practices for Securing Critical Information Assets, Glossary, at 59.