Attack against captcha module

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Posted by willi.firulais on November 18, 2009 at 10:38am

This morning we had a systematic attack from PSINet 38.100.41.113 against the securesite and captcha module.

They have systematically attacked this links (this have not been refereces from the site pages where the captcha module is on).

38.100.41.113 - GET /image_captcha/748/1258300696 HTTP/1.1
...
38.100.41.113 - GET /image_captcha/701/1258300123 HTTP/1.1

38.100.41.113 - GET /sites/all/modules/securesite/theme/securesite.css HTTP/1.1 200

Has someone else got such attachs? Are the images repeating sometime?
What can be done by spying out this URL?

CAPTCHA

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