Attack Signature

A characteristic or distinctive pattern that can be searched for or that can be used in matching to previously identified attacks.

Extended Definition: An automated set of rules for identifying a potential threat (such as an exploit or the presence of an attacker tool) and possible responses to that threat.

Adapted from: NCSD Glossary, CNSSI 4009, ISSG V1.2 Database

Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies ( as of 11 November 2015, Global Standards

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