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    Glossary
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signature

Definitions:

  A recognizable, distinguishing pattern.
Sources:
CNSSI 4009-2022

  A specific sequence of events indicative of an unauthorized access attempt.
Sources:
CNSSI 4009-2022 from NIST SP 800-12 Rev. 1 - under 'attack signature'

  A text string (algorithm or expression), used to configure intrusion detection systems and sensors, describing characteristics, patterns or other identifying information of cyber threat activity.
Sources:
CNSSI 4009-2022 from NSA/CSS Policy 11-11

  A recognizable, distinguishing pattern associated with an attack, such as a binary string in a virus or a particular set of keystrokes used to gain unauthorized access to a system.
Sources:
NIST SP 800-12 Rev. 1 under Signature

  The ability to trace the origin of the data.
Sources:
NIST SP 800-113 under Signature

  A set of characteristics of known malware instances that can be used to identify known malware and some new variants of known malware.
Sources:
NIST SP 800-83 Rev. 1 under Signature