Import Hash
Noun · Security & Infosec
Definitions
A hash derived from the imported functions and libraries of a binary, commonly used to cluster related Windows malware samples even when the exact file hash changes. Import hashes help analysts spot shared tooling, packing differences, and family relationships.
In plain English: A fingerprint based on which functions a program imports, used to compare malware samples.
Example: "The binaries had different SHA-256 values, but the same import hash linked them to the earlier campaign."