Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!rutgers!netnews.upenn.edu!vax1.cc.lehigh.edu!sei.cmu.edu!krvw From: geof@aurora.com (Geoffrey H. Cooper) Newsgroups: comp.virus Subject: Re: Virus Trends (and FAXes on PCs) Message-ID: <0009.9001091603.AA00926@ge.sei.cmu.edu> Date: 9 Jan 90 01:13:07 GMT Sender: Virus Discussion List Lines: 17 Approved: krvw@sei.cmu.edu ras@rayssdb.ssd.ray.com (Ralph A. Shaw) writes: >Nagle@cup.portal.com says: > >> - A FAX message is a bitstream interpreted by an interpreter at >> the receving end. Could it be induced to do something interesting >> through the use of illegal bit patterns? One annoying thing you can do is to spew out paper from the remote fax. The protocol allows the paper length to be anything up to (i think) 65K lines or so, so you could spew out 25' of paper at a time, finishing the receiver's roll of paper and so rendering it useless. Note that it doesn't take much time to transmit this image, if it is toally white or black. - - Geof - -- geof@aurora.com / aurora!geof@decwrl.dec.com / geof%aurora.com@decwrl.dec.com