Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!dsinc!netnews.upenn.edu!vax1.cc.lehigh.edu!cert.sei.cmu.edu!krvw From: p1@arkham.wimsey.bc.ca (Rob Slade) Newsgroups: comp.virus Subject: Infected networks (PC) Message-ID: <0009.9106171414.AA16331@ubu.cert.sei.cmu.edu> Date: 14 Jun 91 20:12:04 GMT Sender: Virus Discussion List Lines: 21 Approved: krvw@sei.cmu.edu padgett%tccslr.dnet@mmc.com (A. Padgett Peterson) writes: > In this case I had such a self-check program (1400 bytes) that just > checks its own length & checksum. If it passes, the program exits, if > it fails, the client machine displays a warning message and is locked > up. In this manner, the server application files are protected from > infection (are never called by an infected client). Each client gets a > new copy of the "goat" file so clean clients are not affected, and > infected clients are identified. I have been reviewing a product from Bangkok called Victor Charlie that takes a similar approach. An intriguing concept. I hope to be able to release the review shortly. ============= Vancouver p1@arkham.wimsey.bc.ca | "If you do buy a Institute for Robert_Slade@mtsg.sfu.ca | computer, don't Research into (SUZY) INtegrity | turn it on." User Canada V7K 2G6 | Richards' 2nd Law Security | of Data Security