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- ┌─────────────────────────────┐
- │ VIRUS REPORT │
- │ Typo (Boot infector) │
- └─────────────────────────────┘
-
- Synonyms: Mistake virus
-
- Date of Origin: June, 1989.
-
- Place of Origin: Israel.
-
- Host Machine: PC compatibles.
-
- Host Files: Remains resident. Infects floppy and hard disk boot sectors.
-
- Increase in Size of Infected Files: n/a.
-
- Nature of Damage: Affects system run-time operation. Corrupts or
- overwrites boot sector.
-
- Detected by: Scanv56+, F-Prot, IBM Scan, Pro-Scan.
-
- Removed by: MDisk, F-Prot, or DOS SYS command.
-
- Derived from: Ping Pong?
-
- Typo Boot was first isolated in Israel by Y. Radai in June, 1989.
- This virus takes up 2K at the upper end of system memory once it has
- become memory resident.
-
- The virus will swap some characters on printouts with phonemes (for
- example, C vs. K), and transpose or substitute digits. Only printouts
- are affected.
-
- Typo Boot may be derived from Ping Pong, because the two have very
- similar internal structures. It can be removed from a disk by using
- MDisk, CleanUp, DOS SYS command, or just about any Ping Pong
- disinfector.
-
-
- ╔════════════════════════════════════════════════════════════════════╗
- ║ 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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