Date: 09 July 1997
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AUSCERT External Security Bulletin Redistribution
ESB-97.083 -- CIAC Bulletin H-79
Vellum 3D CD-ROM contains Mac MBDF Virus
9 July 1997
The U.S. Department of Energy Computer Incident Advisory Capability has
released the following advisory concerning the presence of the Macintosh
MBDF virus on the Vellum 3D CD-ROM. This virus infects both applications
and the system and may require reformatting the hard drive.
The following security bulletin is provided as a service to AUSCERT's
members. As AUSCERT did not write this document, AUSCERT has had no
control over its content. As such, the decision to use any or all of this
information is the responsibility of each user or organisation, and should
be done so in accordance with site policies and procedures.
Contact information for CIAC is included in the Security Bulletin below.
If you have any questions or need further information, please contact them
Previous advisories and external security bulletins can be retrieved from:
If you believe that your system has been compromised, contact AUSCERT or your
representative in FIRST (Forum of Incident Response and Security Teams).
Internet Email: email@example.com
Facsimile: (07) 3365 4477
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AUSCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for emergencies.
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****************** FOR PUBLIC RELEASE **********************
The U.S. Department of Energy
Computer Incident Advisory Capability
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Vellum 3D CD-ROM contains Mac MBDF Virus
July 8, 1997 19:00 GMT Number H-79
PROBLEM: The free Vellum 3D version 3.0 CD-ROM contains the Macintosh
MBDF virus. The virus is in the file: Vellum 3.0 CDROM:Vellum
3.0 Demo-Mac:Vellum. The file is dated 6/17/97.
DAMAGE: Infects applications and the system. Repair may require
reformatting the hard drive.
SOLUTION: Do not run the Macintosh demo version of Vellum 3.0. Use
current antivirus software. All other files on the CD-ROM,
including the Macintosh version 3.0 update and the Windows 95
and NT versions of Vellum are not infected.
VULNERABILITY Anyone running the Macintosh demo program who does not have a
ASSESSMENT: resident antivirus scanner will be infected with the virus.
Recovery from infection may require reformatting the hard
drive and reinstallation of all software. The CD-ROM containing
the virus is being distributed at no charge and so may have a
CIAC has determined that the demo CD-ROM for the Vellum 3D version 3.0
application is infected with a strain of the MBDF A/B virus. Vellum 3.0 is
a high end CAD package for the Macintosh. The CD-ROM containing the updated
version and some demo versions is being distributed at no charge by Ashlar
Inc. Due to the fact this is a free distribution, the infected CD-ROM may be
The cover of the CD-ROM contains the following text:
for Windows 95 & NT and Power Macintosh
(c)1997 Ashlar Incorporated.
The infected file is: Vellum 3.0 CDROM:Vellum 3.0 Demo-Mac:Vellum
The modification date of the file is 6/17/97
Users should not run the Macintosh demo version of Vellum. Other versions
of Vellum 3D on the disk, including those for Windows 95 and NT, and the
Macintosh update version (not the demo version) are not infected and can be
CIAC wishes to acknowledge the contributions of Mike Shaw for the information
contained in this bulletin.
CIAC, the Computer Incident Advisory Capability, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
member of FIRST, the Forum of Incident Response and Security Teams, a
global organization established to foster cooperation and coordination
among computer security teams worldwide.
CIAC services are available to DOE, DOE contractors, and the NIH. CIAC
can be contacted at:
Voice: +1 510-422-8193
FAX: +1 510-423-8002
STU-III: +1 510-423-2604
For emergencies and off-hour assistance, DOE, DOE contractor sites,
and the NIH may contact CIAC 24-hours a day. During off hours (5PM -
8AM PST), call the CIAC voice number 510-422-8193 and leave a message,
or call 800-759-7243 (800-SKY-PAGE) to send a Sky Page. CIAC has two
Sky Page PIN numbers, the primary PIN number, 8550070, is for the CIAC
duty person, and the secondary PIN number, 8550074 is for the CIAC
Previous CIAC notices, anti-virus software, and other information are
available from the CIAC Computer Security Archive.
World Wide Web: http://ciac.llnl.gov/
Anonymous FTP: ciac.llnl.gov (18.104.22.168)
Modem access: +1 (510) 423-4753 (28.8K baud)
+1 (510) 423-3331 (28.8K baud)
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PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing
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This document was prepared as an account of work sponsored by an
agency of the United States Government. Neither the United States
Government nor the University of California nor any of their
employees, makes any warranty, express or implied, or assumes any
legal liability or responsibility for the accuracy, completeness, or
usefulness of any information, apparatus, product, or process
disclosed, or represents that its use would not infringe privately
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otherwise, does not necessarily constitute or imply its endorsement,
recommendation or favoring by the United States Government or the
University of California. The views and opinions of authors expressed
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