Supposedly it's embedded in a pixel fixing app called Dpixy. here is a copy and paste from another site.
"The new trojan is floating around inside a program labeled DPixy and claims to cure dead pixels. It actually gradually (about 1min) turns your screen black. The PSP is still functional it just doesn’t display anything to the screen. To get your PSP back you need to navigate to the system restore without the aid of seeing what you are doing."
Can anyone confirm this? Maybe if it's true put it on the front page to warn people so they don't use the app.