I read a disturbing article on Tech Republic about how the advent of polymorphous and encrypted malware programs are making traditional signature based anti-virus products ineffective. Basically, malware writers are using sophisticated encryption techniques to keep their products from being detected, and are writing them in such a way that the encryption key is unique for every computer that it installs itself on.
Traditional anti-virus programs rely on something called signatures. A signature is basically a uniquely identifying ...
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