There are so many viruses, and many does the same job(or so I assume). What is the thing that makes them different in the eyes of anti-virus?
I understand that they read the signature, but what exactly is a signature? Is it like checksum? Is it a determining code in the file? What is it, really?
However, new virus comes out everyday, so how is it that they are 'new', since many of them have probably the same code structure anyway? That is of course assuming a simple structure of virus
Copies itself to camoflauge->Sets startup->spread->payload
So, how do I make a malware that it will not get detected?
Packers did come up a couple of times in my search, but I have no idea what it's about in details.
Thanks in advance!
