Do you have any idea what the heck this could be from? I have several hundred entries similar to this, all from different IP addresses.
************************************ Date: 08/06/2001 05:40:22 PM User Address: 220.127.116.11 Authenticated User: - Status: 404 Content Length: 221 Content Type: text/html Request: GET /default.ida?XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX%u9090%u6858%ucbd3%u7801%u9090%u6858%ucbd3%u7801%u9090%u6858%ucbd3%u7801%u9090%u9090%u8190%u00c3%u0003%u8b00%u531b%u53ff%u0078%u0000%u00=a HTTP/1.0 Browser Used: Error: Referring URL: Server Address: 18.104.22.168 Elapse Time (ms): 1412
While I cannot be certain, it is possible that you are seeing the attempts of a hacker to break into your Domino server. This may be a "buffer overflow" attack, where the hacker uses very long URLs to trick the web server (Domino) into doing something malicious.
Reader Jean-Philippe was nice enough to respond to one of my previous answers. Someone had asked about strange long log entries that included strings like "[SNIP]". I suggested that this might indicate an attempt by a hacker to mount a buffer overflow attack.
Jean-Philippe says that this is a typical signature from the Code Read worm. I cannot personally verify this information, but thought I would pass it along.—Chuck Connell
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