Protector

In malware research, a protector is software intended to prevent tampering and reverse engineering of programs. The methods used can—and usually will—include both packing and encrypting. This combination, plus added features, makes what is usually referred to as a protector. Researchers are then faced with protective layers around the payload, making reverse engineering difficult.

A completely different approach, which also falls under the umbrella of protectors, is code virtualization, which uses a customized and different virtual instruction set every time you use it to protect your application. Of these protectors, there are professional versions that are used in the gaming industry against piracy. More information about this and related subjects can be found in our blog post, Explained: Packer, Crypter, and Protector

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