Yankee Doodle
aka Five O'Clock / 1961 / 2885

- discovered
- 1989-09
- origin
- Sofia, Bulgaria
- reported by
- Vesselin Bontchev
- family
- Yankee
- size
- 2885 bytes
- platform
- DOS
- vector
- COM and EXE files
- payload
- audio, prank
- trigger
- 5:00 pm system clock
Payload
At five o'clock in the afternoon, the virus plays a recognizable rendition of Yankee Doodle through the PC speaker.
~ writeup coming soon ~
Related specimens
Sources
- Internet Archive Malware Museum: Yankee Doodle :: Mikko Hypponen, Internet Archive Malware Museum
last updated: 2026-04-12 :: curated by the_curator





