I've had this follow me through two Android devices and a few factory resets - resets happen from time to time. I'm thinking it's possibly on the SD card as I always take the SD card out before performing a factory reset lest I loose all my music and pictures. So that's why I think this thing has followed me. I'll delete it and it'll keep coming back. I'm ready to wipe everything, including the SD card but it was such a chore to put my music on it as my laptop and new Android device didn't initially like each other (don't ask...). When I look at it it's just a white square and the .jpg indicates to me that it should be a picture. I'm thinking it's some form of intended advertisement that's tagged along with with an app I've downloaded and stuck around after I deleted the app (if the app is burdensome with ads I'll usually delete it and find something else). I've used McAfee Anti-virus, ESET and a number of cleaners that I trust to take out the trash and the thing just seems very persistent. It doesn't seem to hurt anything, it just pops up in my gallery app from time to time which is how I know it's back. I've since told my gallery app to ignore the folder, but I'd like to know if it's adware, something else, something worse and maybe how to kill it for good if it's not something my device actually creates and/or needs.