Stoned
aka New Zealand / Marijuana / Hawaii

- discovered
- 1987
- origin
- Wellington, New Zealand
- reported by
- various
- author
- unknown
- family
- Stoned
- size
- 512 bytes
- platform
- DOS boot sector
- vector
- Floppy and hard disk boot sectors
- payload
- boot sector, prank
- trigger
- 1 in 8 boots
Payload
Displays the message Your PC is now Stoned and Legalise Marijuana on roughly one in every eight boots from an infected disk.
The Message in the Machine
In 1987, somewhere in Wellington, a student at the University of Wellington wrote sixteen lines of assembly code that would become one of the most widely distributed viruses in DOS history. The Stoned virus wasn't designed to corrupt files or steal data. It was designed to mess with you, to interrupt your workday with a single message: "Your PC is now Stoned." On the second trigger, it added another line: "Legalise Marijuana." Politics embedded in a boot sector. Counterculture smuggled into the BIOS.
The attribution remains murky, as it should be. The author never claimed credit (or was never fully identified). What matters is the artifact itself: five hundred twelve bytes of pure subversion, simple enough to understand, effective enough to change how we thought about viruses.
How It Spread
Stoned didn't require executable files or user interaction. It lived in the boot sector, the first thing your computer read when it woke up. Floppy disks were everywhere in the late eighties. You borrowed a disk from a friend, booted from it once to install something, and your hard drive was infected. From there, it spread sideways through networks, office to office, campus to campus. No email required. No social engineering. Just the physical movement of five hundred twelve infected bytes on magnetic media.
The virus triggered on roughly one in eight boots, which meant you might not notice immediately. Your machine would boot normally for days, then suddenly the message would flash. By then, every disk you'd touched was infected. By then, you'd passed it to five other people.
The spread was staggering. Within months, Stoned had infected machines across New Zealand. Within a year, it was everywhere the English-speaking world used DOS. Universities, offices, home machines. By the early nineties, it was a fait accompli. The virus had won through sheer geographic and demographic reach.
The Variant Explosion
What made Stoned legendary wasn't just its spread; it was the ecosystem it spawned. Stoned.Empire. Stoned.Angelina. Stoned.Marijuana. Stoned.OverWrite. Hundreds of variants, each tweaked by different authors, each adding their own message, their own trigger condition. Some variants corrupted files. Some added new payloads. Some changed the message entirely. The variant family became a genealogy of DOS-era chaos.
The most famous child of that lineage was Michelangelo, which emerged in 1991. Michelangelo was essentially a Stoned variant that triggered on March 6th, the artist's birthday. It would overwrite your hard drive sectors without warning. The fear it generated was nuclear. National news. Meetings at the FBI. But Michelangelo was just Stoned wearing a different mask.
A Virus with Politics
What separated Stoned from the cold logic of earlier viruses was its explicit cultural message. Stoned wasn't about proving technical skill or demonstrating a vulnerability. It was about saying something. The author embedded a political statement in machine code, turned an infection vector into a medium for speech.
That wasn't new in hacking culture. Phreakers had been turning technical exploits into platforms for expression for two decades. But embedding it directly into malware was a shift. It said: the virus itself is the message. The disruption is the point. Not destruction. Just presence. Just noise.
Legacy
Stoned never corrupted files. It never stole data. It just interrupted your morning and made you think about cannabis policy while waiting for your machine to boot. In that simplicity was its genius. It was the first truly distributed folk virus, the first one to feel like a collective action rather than an individual exploit.
By the time you read this, Stoned is archaeologically dead. No DOS machines boot anymore (well, not many). But its variant family echoed through the nineties, and its philosophy echoed longer: a virus could be a prank, a virus could be political, a virus could spread not through terror but through the simple momentum of shared disks and trusted transfers.
Related specimens
Sources
- Internet Archive Malware Museum: Stoned :: Mikko Hypponen, Internet Archive Malware Museum
last updated: 2026-04-12 :: curated by the_curator





