Posted 16 November 2010 - 12:09 AM
There was a PDF file left open on my computer. It was an ISP payment transcript of my dad's. Since it's been open, just staying there for nothing, I decided to close it.
Suddenly, something very scary happened. Basically, the computer was lagging to close the document, which I felt was normal. The PC slows down like that sometimes. Suddenly, it looked like the animation where you shrink a window (like "restoring" an internet window from being maximized). Immediately, after, the screen was almost entirely black. Near the bottom of the screen, there was a big long green rectangle. In the center of the screen, a blank prompt message window showed up. It had NO text. There were 2 buttons which had no writing on it and also a small box with a checkmark. The prompt had an X on the top-right. I was too scared to click anywhere on it. I tried control-alt delete and everything. None of it was responding, except for the menacingly blank prompt message.
I scanned the PC and all that, no virus was detected. It hasn't happened to me since that once (a few minutes ago), but that is definitely not normal or just some glitch.
Could anyone confirm if that's some sort of virus?