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- ┌─────────────────────────────┐
- │ VIRUS REPORT │
- │ Taiwan Virus │
- └─────────────────────────────┘
-
- Date of Origin: January, 1990.
-
- Place of Origin: Taiwan, R.O.C.
-
- Host Machine: PC compatibles.
-
- Host Files: Not memory resident. Infects COM files, including
- COMMAND.COM.
-
- Increase in Size of Infected Files: 708 or 743 bytes.
-
- Nature of Damage: corrupts COM files.
-
- Detected by: Scanv56+, F-Prot.
-
- Removed by: CleanUp, Scan/D, or delete infected files.
-
- Whenever this virus is activated, it attempts to infect up to three
- COM files. The search for uninfected COM files begins in the root
- directory of C:. Once an uninfected COM file is located, the virus
- infects the file by copying the viral code to the first 743 bytes of the
- file, relocating the original first 743 bytes of the file to the end of
- the COM file.
-
- If the COM file selected for infection is less than 743 bytes, the
- resulting infected COM file will always be 1,486 bytes in length. This
- "bug" results from a failure to check for the original file length.
-
- The virus is destructive. On the 8th day of any month, when an
- infected program is run, the virus will perform an absolute disk write
- for 160 sectors starting at logical sector 0 on the C: and D: drives,
- overwriting the FATs and root directories.
-
-
- ╔════════════════════════════════════════════════════════════════════╗
- ║ 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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