albanian virus.

I call bullshit. In the 90s you had to turn a phisical wheel to increase the volume of the computer.

Simple, every now and again switch a key input with a neighboring key. Imagine slowly losing your confidence in your motor skills as you just can’t seem to type properly no matter how careful you are.

It would do it like once every 10-1000 minutes, you will never catch it and slowly lose your grip on reality.

On somethingawful back in the day if you were on any one page on their forums for more then about 20 minutes, a audio clip would play that said something like “HEY EVERYBODY I’M LOOKING AT GAY PORNO”

Not so harmless to the guy living in Iran that got stoned.

When I was in high school in the 90s a group of us in computer class made a ‘virus’ that would launch the hamster dance website in all of the classroom computers randomly. We had to put it on a diskette and install it manually on each computer but at the time none of the computers even had antivirus so the school had to reformat them to remove it.

used to be fun at the office to take a screenshot of someone desktop, and make it the desktop background, then put all their icons into one folder.

There was a guy in my dorm who really didn’t like his roommate. Really, really didn’t like him. This was in the early aughts.

So one day he goes on his roommate’s computer and puts a text file in his startup folder. The file says, “Your computer has been infected by the Snood virus!”

For context, Snood was a free video game people downloaded in the early aughts. Basically the same as Bust-A-Move, which probably doesn’t clarify anything if you didn’t already know what Snood is.

Anyway: “Your computer has been infected by the Snood virus! If you don’t score [extremely difficult but not completely unrealistic high score] points, all of your files will be deleted!”

He laughed to himself and promptly forgot about it.

Weeks later, the roommate is on his computer in the middle of the night.

“What are you doing up? Go to bed.”

“I can’t. It’s this stupid Snood virus.”

A virus that changes Windows’ sticky keys to only requiring two taps of the shift key.

I’d make Windows 11

Edit: Whoops, that’s not harmless

When I worked at an MSP in early 2000s they would “prank” new hires with a site that did this. It would keep creating popups so you couldn’t close them. That stopped after customers heard it. More horrid graphical “pranks” replaced it of course.

I wrote a simple script once that ran in the background and all it did was toggle the state of the caps lock key every 30 minutes. I set it up on a co-worker’s computer as a scheduled task for an April Fools prank one year. I thought for sure he’d figure it out pretty quickly, but by mid-day, he had completely disassembled his keyboard, convinced the button was getting stuck due to gunk buildup. Eventually I ended up just disabling the task so he thought he had managed to fix it himself.

theres used to be a DOS batch script line you could put into a windows startup that pipes the video output into the keyboard input, immediately crashing the machine. i believe this was patched after windows 7.

«I’m watching porno» - not porn. This was around y2k

Oh, I have a seemingly harmless idea so evil, it will ruin the internet forever.
I will make it so every time you open any website, there will be a popup with a question that asks you to invade your privacy, and you can allow it to do so with one click, but you will have to dig through menus if you want to avoid it. Then, after some seconds, another popup will appear, asking you to create a login, no matter what you do. Then, it randomly will ask you to share your location. Yes, with a popup again. Then, just as you thought you’re done, another window will open, grabbing your focus, which will demand you talk to a chatbot, and you can’t close this one, only slightly minimize it.