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- ┌─────────────────────────────┐
- │ VIRUS REPORT │
- │ Lisbon virus │
- └─────────────────────────────┘
-
- Date of Origin: November, 1989.
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- Place of Origin: Lisbon, Portugal.
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- Host Machine: PC compatibles.
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- Host Files: COM files.
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- Increase in Size of Infected Files: 648 bytes.
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- Nature of Damage: Corrupts one out of eight COM programs by overwriting.
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- Detected by: Scanv49+, F-Prot, IBM Scan, Pro-Scan.
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- Removed by: CleanUp, Scan/D, or F-Prot.
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- Derived from: Vienna
-
- This virus was discovered by Jean Luz, an NCSA member in Lisbon,
- Portugal, in November, 1989. It infects COM files and increases the size
- of infected programs by 648 bytes. It destroys 1 out of 8 infected
- programs by overwriting "@AIDS" on top of the first five bytes of the
- infected program.
-
- The virus is very similar to Vienna, except that almost every word in
- the virus has been shifted 1-2 bytes in order to avoid virus
- identification/detection programs which could identify the Vienna
- virus.
-
-
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- ║ This document was adapted from the book "Computer Viruses", ║
- ║ which is copyright and distributed by the National Computer ║
- ║ Security Association. It contains information compiled from ║
- ║ many sources. To the best of our knowledge, all information ║
- ║ presented here is accurate. ║
- ║ ║
- ║ Please send any updates or corrections to the NCSA, Suite 309, ║
- ║ 4401-A Connecticut Ave NW, Washington, DC 20008. Or call our BBS ║
- ║ and upload the information: (202) 364-1304. Or call us voice at ║
- ║ (202) 364-8252. This version was produced May 22, 1990. ║
- ║ ║
- ║ The NCSA is a non-profit organization dedicated to improving ║
- ║ computer security. Membership in the association is just $45 per ║
- ║ year. Copies of the book "Computer Viruses", which provides ║
- ║ detailed information on over 145 viruses, can be obtained from ║
- ║ the NCSA. Member price: $44; non-member price: $55. ║
- ║ ║
- ║ The document is copyright (c) 1990 NCSA. ║
- ║ ║
- ║ This document may be distributed in any format, providing ║
- ║ this message is not removed or altered. ║
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