Vienna
aka 648 / DOS-62 / Unesco

- discovered
- 1987
- origin
- Vienna, Austria
- reported by
- various
- author
- unknown
- family
- Vienna
- size
- 648 bytes
- platform
- DOS
- vector
- COM files
- payload
- destructive
- trigger
- 1 in 8 infections
Payload
Overwrites the first five bytes of one in every eight COM files it touches with a jump to the BIOS reboot vector.
~ writeup coming soon ~
Related specimens
Sources
- Computer Viruses: A High-Tech Disease :: Ralf Burger, Abacus, 1988, Vienna source listing
last updated: 2026-04-12 :: curated by the_curator





