Article View: comp.virus
Article #4274F-Prot won't clean... (PC)
From: A. Padgett Peterson
Date: Thu, 10 Dec 1992 15:31
Date: Thu, 10 Dec 1992 15:31
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1139 bytes
I *suspect* that what you have is a simple STONED hack that just has changed the real MBR resting place to something other than 0,0,7 (essentially a two byte change). I do not know if F-Prot uses a global search for a valid partition table like my stuff (no names) but this would tend to indicate that it does not. The AZUSA virus does not bother to save the original MBR so when you use CLEAN [AZUSA], I would expect this to be the same as CLEAN [GEN-P] which is also essentially the same as FDISK /MBR since the only assumption made is that the valid partition table is in sector 1 and the MBR code is replaced by a canned program. I am curious to know where or whether it did store the original MBR. Warmly, Padgett
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Path: arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!news.sei.cmu.edu!cert!netnews.upenn.edu!netnews.cc.lehigh.edu!news From: padgett@tccslr.dnet.mmc.com (A. Padgett Peterson) Newsgroups: comp.virus Subject: F-Prot won't clean... (PC) Message-ID: <0010.9212141513.AA07337@barnabas.cert.org> Date: 10 Dec 92 15:31:42 GMT Sender: virus-l@lehigh.edu Lines: 16 Approved: news@netnews.cc.lehigh.edu