Exam 312-49 topic 1 question 191 discussion

Metamorphic malware is the one which translates and changes itself or you can say re-write it's code with each iteration so that it can be difficult for the anti-malware software to identify its signature or pattern. The longer the malware stays in a system, the more iteration it produces and the more sophisticated the iterations are, making it increasingly hard for antivirus applications to detect or diffuse it. Polymorphic malware works by encrypting itself with a variable encryption key since the keys used for encryption are different so each copy looks different. But the virus decryption routine would remain constant and because of this static part of code, it gets easy for an antivirus program to identify the malware.

https://pediaa.com/difference-between-polymorphic-and-metamorphic-virus/ Just a bad question again. Both polymorphic and metamorphic rewrite their code to avoid detection. Poly encrypts itself being the only difference