                    Ŀ
                            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.


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