Today I was looking on my brother's computer. He is 11, and is what I consider high-risk. He mainly watches YouTube videos, but also plays online games. On his desktop today I found a file, Macromedia Flash 8. It had an appropriate icon, but it raised several red-flags because: 1. Macromedia got bought out by Adobe a while ago. 2. Flash is beyond version 8, so why would a site give him a version 8 download? 3. I looked at the file's details; it has no copyright, which I believe legitimate Flash downloads do 4. The file version and product version are 0.0.0.0 It also lists the original file names as Flash8Portable.exe I scanned with Roboscan (the AV on his PC), MBAM, HitmanPro, and Avast! when I moved it to a USB to bring to my PC. None found anything, but Avast! couldn't scan because all the files were password protected? Worst, I can't upload it to VirusTotal because it is 54MB. Am I making a big deal out of nothing, or could this be a zero-day malware?