RADAI1@HBUNOS.BITNET (Y. Radai) (07/30/90)
Just a couple of minor comments on Padgett Peterson's posting. He writes: >Though of course it is feasible, I have not yet seen >a virus that just uses 1k. There is at least one PC virus which uses only 1K of high RAM: the Merritt/Alameda/Yale virus. >simple checksum >analysis of existing programs is adequate so long as the algorithm used is >unknown. Maybe we mean different things by "algorithm", but as far as I'm con- cerned, the algorithm can be known as long as the checksums depend on an unknown user-dependent key. Y. Radai Hebrew Univ. of Jerusalem, Israel RADAI1@HBUNOS.BITNET RADAI@HUJIVMS.BITNET