Yahoo sending hacking requests?

Funny-looking requests from Slurp

[MatthewHSE]

Just found a 404 on one of my sites for the following:

http://example.com/subdir/function.fopen

The IP and User-agent match Slurp. Of course there's no referring URL.

I'm not sure what to make of this. I have never had a file called 'function.fopen' on my server and I don't really like seeing requests for it.

This seems like some sort of hacking attempt, certainly not initiated by Yahoo but possibly they're being used as a hacking tool. I've heard of similar things being done with Google.

Has anyone else ever seen this, or are there any ideas to what it might be about? A quick search really doesn't turn up anything useful.

Thanks,

Matthew

[bill]

Keep in mind that Yahoo does operate some ISP business. For example, they are one of the biggest ISPs in Japan. Could it be an ISP user masquerading with a faked Slurp user-agent?