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<< It might be a hacker. It may be coincidence, but I didn't notice these problems until I installed CuteFTP a few days ago- I could have opened a port for a hacker to get in. Thanks ojai00- I'll try that link to see if I can delete the files. Hopefully there won't be any other problems, but I'm still going to run a hard drive test just to make sure. >>
You absolutely let a hacker in. If you look inside these folders you'll probably see warez or movies.
You might be able to delete these folders from the command prompt. See if you can move the affected folders into a parent folder. (Or move everything you want to keep out of the parent folder), and go to a command prompt and type:
rd /s <parentfoldername>
I've used that with success when this happened to my ftp site. >>
Huh? Did you install a cuteftp CLIENT or cuteftp SERVER? If it's just the CLIENT (used for dowloading things from other ftp sites), there's no chance in hell that someone used *that* to hack you (the protocol just doesn't permit it, any normal client would just abort and die). If you installed the SERVER, I agree, someone probably took advantage of you (or, more correctly, someone noticed you didnt know how to set it up, and set it up for you, the way they wanted).
The person, most likely, logged in anonymously, and started creating directories with the illegal characters (which ftp clients will allow, but the OS itself dislikes). they then uploaded their warez/movies/etc to YOUR computer, and passed the link around to their friends (my boyfriend's little brother used to do this, until my boyfriend kicked his ass for it).
I wouldnt even call this a hacker. I'd call this a warez kiddie with too much time on his hands. If you really need to run an ftp server, either configure it so it doesnt allow uploads, doesnt allow anonymous uploads, or anonymous uploads are unreadable by anonymous downloaders (if you cant do this, then this is yet another reason to run a
Real OS if you plan on serving FTP files).