Opened up my D drive a few minutes ago, and I saw a random folder that I didn't create. The name was a bunch of random letters and numbers. Something basically like: 12navui3fnb5abs
I right clicked it, and it said the folder had been created a few minutes before I found it. I scanned just the folder with TrojanKiller and Malwarebytes, and they both said there were no threats detected.
I opened the folder and inside were two .exe files (before I opened it, it asked me for administrator permission). At least I think they were both .exe files. I obviously can't go back and check since the entire folder disappeared. The name of the applications were something like mrstub.exe. I'm not 100% sure about the names, but I know it started with an 'm' and ended with 'stub'. I right clicked them, and it said they were both created on January 29th, which I thought was odd considering the folder had supposedly been created just a few minutes before I saw it.
When I tried to delete the folder, it said I couldn't because it was active in another program. I closed the D drive and opened it up again, and the mysterious folder was gone but not in my recycle bin.
Even though there was no threat detected, the fact that this thing just showed up out of nowhere has me a little worried. Any idea what it was? I tried checking TrojanKiller and Malwarebytes logs, but I didn't see the name of the folder or files listed anywhere.