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Training Camp • Cybersecurity Glossary
Metamorphic malware rewrites its own code on each infection to evade signature detection, unlike polymorphic malware that only re-encrypts.
Metamorphic Malware Definition: Metamorphic malware rewrites its own code on each infection to evade signature detection, unlike polymorphic malware that only re-encrypts.
Metamorphic malware is a class of malicious code that fully rewrites its own logic with each new infection, producing variants that are structurally different at the instruction level while preserving identical behavior. Unlike polymorphic malware, which merely encrypts or obfuscates a constant underlying body, metamorphic code regenerates its entire engine using techniques like instruction substitution, register reassignment, and code reordering. This makes signature-based detection extremely difficult and typically requires behavioral or heuristic analysis to identify.
Metamorphic Malware is one of the topics you'll master in the CEH Boot Camp.
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