Path: utzoo!attcan!uunet!lll-winken!ncis.llnl.gov!helios.ee.lbl.gov!pasteur!ucbvax!instr.okanagan.bc.ca!rdlanctot From: rdlanctot@instr.okanagan.bc.ca (Ryan Lanctot) Newsgroups: comp.sys.apple Subject: viruses Message-ID: <123*rdlanctot@instr.okanagan.bc.ca> Date: 3 Mar 89 19:46:00 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 11 As anyone knows, a checksum is only effective if the person who wrote the virus doesn't have the smarts to make the checksum add up after the virus has inserted itself. Some really smart cookie would probably have the virus checksum the program itself before insertion, then rebalance the checksum...... Or they could corrupt the checksum program itself to produce the same result every time , no matter how the program looked. By the was, is the Core wars society still around? I read about it in Scientific American some time ago..... Ryan Lanctot