larserio@IFI.UIO.NO (LarsErikOsterud) (05/30/91)
Protect6 - The resident bootsector/linkvirus detect/kill program """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" Well... Uhhh.... Hmmm... OK, so the first version of Protect6 didn't stop all the link- viruses :-( Because of some strange features in the GEMDOS it is possible to WRITE data to a file that i OPENed as READ ONLY. This should give an error from GEMDOS, but it doesn't. Some link- viruses opens the program file from READ ONLY and then use WRITE. (does Atari Corp have a comment on why this is possible !!!????) As the first version of Protect6 checked for OPENing of a program file for READ & WRITE or WRITE ONLY these viruses get passed it. Well, this new version of Protect6 (check your date) uses a completly different way of checking things. I also removed the XBRA stuff. Why? Well, any virus could use the XBRA stuff to un-hook Protect6 from the OS-vectors and disable Protect6 ! <newest version posted to comp.binaries, if you can't wait or if you don't recieve comp.binaries send me a message> Lars-Erik / ABK-BBS +47 2132659 / ____ ______ ________________________ Osterud / larserio@ifi.uio.no / /___ / The norwegian ST __________/ ______________________/ ____/ / Klubben, user association