There's a folder on my Linux desktop which shouldn't exist. The first time I saw it, I thought I'd accidentally copied it from somewhere else, so I deleted it. Now it's back again. So it must have been automatically created by some process, but what can I do to figure out which program is creating it? I think it's likely that if I delete the folder it'll eventually be created again, so I should be able to catch this program in the act if anyone can suggest a technique for doing so.
By the way, there are no files in this mystery folder, and its name is the same as another folder I created months ago to hold my personal documents, not something that a program would create to hold its own configuration files or the like.
EDIT: Since I asked this question the folder hasn't shown up again, so I guess I could consider the problem solved... but I'd still be interested to know if anyone has an idea of some tool I could use if this happens again.
EDIT 2: IT'S BAAAACK.... yes, the mysteriously reappearing folder has reappeared. The modification time is July 2, ~10:30 PM EDT, just over a week after I last edited this question, so I guess that's when it was recreated, but that doesn't tell me what might have put it there. So I am still interested in any other answers.