N'ihe banyere polymorphic nje, Otú ọ dị, a decryption modul na-gbanwekwara na onye ọ bụla ọrịa. A ọma e dere polymorphic nje Ya mere, ọ dịghị akụkụ nke na-anọgide yiri n'etiti ọrịa, na-eme ka ọ dị nnọọ ike ịchọpụta ozugbo iji "akara". Antivirus software nwere ike ịchọpụta ya site decrypting nje na-eji ihe emulator, ma ọ bụ site na mgbakọ na mwepụ ụkpụrụ nke ezoro ezo virus ahụ. Iji mee ka polymorphic nje nwere a mutal mutal engine (a na-akpọ "n'ihi ya virus engine" ma ọ bụ "mutation engine") na faịlụ na decrypted site na a decryption engine. Otú ọ dị, n'ihe banyere polymorphic nje, Otú ọ dị, nke a decryption modul na-gbanwekwara na onye ọ bụla ọrịa. N'ihi na nke a na-eme ka ọ na-esiwanye ike iji chọpụta na nje virus na-agba ọsọ na-eji nwayọọ nwayọọ ma ọ bụ na-eme ka ọ na-enwe ike iji chọpụta na nje virus na-agba ọsọ site na
polymorphic