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RE: repeated port 21 attempts
From: "Ken Dunham" <dunhamk () rica net>
Date: Tue, 13 Jun 2006 22:42:43 -0600

I'm getting port 21 connection attempts every 5 minutes from about 
half a dozen of my network users. These attempts are repeating 
regularly with one computer sending out 1500+ attempts a day. I have 
not seen this before and I'm wondering if anyone else here has seen a
client behave this way before?

Sounds like FTP and SSH attacks that are opportunistically launched by
Romanian attackers to date, simple brute force and a few other hacking
exploits.  It's a consistent issue we've seen globally for many months now.


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