How do you make anti virus software?

Answer 1

some anti-virus software design and processes are defined by law and the programmer or system programmer is one implementer of the specified framework. Norton PC-cillin avast are some products defined before the implementation and specially authorized and registered programmers are required. Individual bytes and bits of data or files are carefully checked by the software to verify the contents are acceptable and items like hashes and checksums are checked or created by the software