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- To Users of Microsoft DOS Anti-Virus (MSAV)
-
- October, 1993
-
- If you were one of the people who ordered the DOS Anti-Virus
- Update offered with the Microsoft MS-DOS 6.0 Update, Sydex feels
- that there is something that you should know.
-
- Version 1.1 of the DOS Anti-Virus Update (MSAV) erroneously
- identifies CopyQM versions 3.00 through 3.05 as containing the
- "Virus Cruncher" virus and specifies that the files COPYQM.COM,
- CQMENU.COM and VIEWCONF.COM should be deleted. These files, as
- distributed by Sydex, DO NOT CONTAIN THE INDICATED VIRUS.
-
- The "Cruncher" virus is, in fact, a legitimate virus, having
- surfaced in the Netherlands sometime around June, 1993.
-
- As far as Sydex has been able to determine, the false virus
- indication arises from Sydex's use of Teddy Matsumoto's DIET
- executable file compressor, which is a public domain compressor
- similar in function to PKWare's PKLITE or Francois Bellard's
- LZEXE compressors.
-
- Both DIET and the relevant versions of CopyQM were in wide
- circulation long before the emergence of the "Cruncher" virus.
-
- MSAV and its updates are produced by Central Point Software, not
- Microsoft. Sydex contacted Central Point and reported the
- problem in August after the indication was reported to us by a
- user of both CopyQM and MSAV. Central Point, for its part,
- ignored our letters and so we were forced to turn the matter over
- to our attorney. At this time, Central Point has acknowledged to
- Sydex that a false indication is produced by MSAV 1.1 and that
- the subsequent update, MSAV 1.2, does not produce the indication.
- However, Central Point has not notified MSAV 1.1 customers about
- the false indication of the "Virus Cruncher" virus in CopyQM.
- Microsoft has investigated the situation and confirms that MSAV
- 1.1 produced false virus indications for CopyQM.
-
- It is noteworthy that none of the other leading virus detectors
- tested by Sydex committed the same error, even though several of
- them do recognize the "Cruncher" virus.
-
- Sydex obviously does not benefit from the accusation of virus
- infection made by MSAV 1.1. The issue of damage to Sydex's
- reputation still needs to be resolved between Central Point
- Software, Microsoft and Sydex.
-
-