Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!wuarchive!uwm.edu!cs.utexas.edu!rutgers!netnews.upenn.edu!vax1.cc.lehigh.edu!cert.sei.cmu.edu!krvw From: CHESS@YKTVMV.BITNET (David.M.Chess) Newsgroups: comp.virus Subject: new virus (PC) Message-ID: <0008.9007091826.AA07309@ubu.cert.sei.cmu.edu> Date: 9 Jul 90 13:43:02 GMT Sender: Virus Discussion List Lines: 16 Approved: krvw@sei.cmu.edu > Fools debuggers to prevent reverse engineering. One small nit, just in case this list is being read by someone in the media! *8) The virus contains some code that's designed to cause a branch to a nasty place in BIOS if one single-steps through a particular early part of the virus. But anyone skillful enough to use a debugger is almost certainly skillful enough to detect what the virus is trying to do, and prevent it. A more accurate description, to avoid giving the virus more credit than it deserves, might be: Contains easily-avoidable code that's intended to make analysis more difficult, but in fact has no particular effect. DC