Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!wuarchive!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!dsinc!netnews.upenn.edu!vax1.cc.lehigh.edu!cert.sei.cmu.edu!krvw From: Watkins@np1a.bristol.ac.uk (Steff) Newsgroups: comp.virus Subject: Re: Infected? (PC) Message-ID: <0008.9008231338.AA20624@ubu.cert.sei.cmu.edu> Date: 22 Aug 90 15:33:26 GMT Sender: Virus Discussion List Lines: 26 Approved: krvw@sei.cmu.edu With response to James Li (Uk.AC.OXFORD) .... It looks like you have had a case of INT 26 (I Believe) calls. This causes an absolute disk-write of some area of preogram memory onto the disk. I believe this to be so, as when I was exercising some assembler code a few weeks ago, I made the mistake of entering an INT 26H call instead of an INT 21H call, and the result was a very-unusable floppy (which was a work-diskette fortunately!!). On obtaining a directory of the diskette, I received a similar result to what you have described. I would therefore suggest that either A> Some of your source code contains an INT 26H call that it shouldn't. B> Some of your coding has gone terminally ill. It could always be a virus, tho.... ******************************************************************************** * Steff Watkins B.Sc., Computer Operations Officer, Bristol University * * Address (Work) :- Computing Centre, Tyndall Avenue, Bristol BS8 1UD * * Telephone (Voice):- (0272) 303030 Extn:- 3042 or 4531 * * Telephone (Fax) :- (0272) 291576 * * E-Mail :- Steff.Watkins@UK.AC.BRISTOL.NP1A * ********************************************************************************